Nubia z11 mini - NX529F - Telephony services lost - Android Q&A, Help & Troubleshooting

The short history:
Playing with an "official" ROM I bricked my phone. I was able to recover it, everything works properly except the telephony, I can't make phone calls :crying:.
The full story:
The behaviour of my phone is different depending on which slot I put my SIM card.
If I put my SIM on the first slot, when the phone reboots it doesn't ask for the PIN and doesn't recognise the card. But if I switch to plane mode and I reboot the phone, the phone then asks for the PIN number. If I introduce an incorrect one, it recognises that it is incorrect ans ask for a new one (then it is reading the card to know that), but when I introduce the correct one, it does no connect whit my carrier (of course, before that I switch off the plane mode).
If I put my SIM on the second slot, it asks for the PIN number but similarly to the previous case, It doesn't connect with the carrier.
In both cases dialling *#06# on the phone, I can read the two IMEI and the MEID codes and they agree with the codes printed on the phone box.
Moreover, if I install an app (I tested with some of them) that reads the SIM card it can read the name of my carrier and all the contacts that are on my SIM.
Things that I tried:
0) I tried to use my SIM in another phone, and it works. I also tried to use another SIM in my phone, and I have the same problem.
1) I tried to install several ROM's:
- Jeff72ROM (v1.30 and v1.32) from: http://www.needrom.com/category/zte/serial-nubia/z11-mini/
- stock ROM from http://4pda.ru/forum/index.php?showtopic=776504&st=0#entry52586301
- And experimental port of CM14 (I can't remember where I found it)
- CUOCO92 from http://blog.grossoshop.net/nubia-z11-mini-rom-gs-by-cuoco92/
- An "official" ROM: NX529J_Z69_EN_NSXPK1JD00K132 from http://www.nubia.com/es/support.php?a=phone&pid=8 (this is the ROM that bricked my phone, I modified it in order to avoid the problem).
To install all these ROM I used TWPR from http://www.androidbrick.com/download/z11-mini-nx529j-twrp-root/
When I dial *#*#4636#*#* on the phone it says that the type of preferred net is WCDMA. It seems to me that these nets are not in use in Europe (I live in Spain). Itried to change that, but I couldn't. Then I applied the patch http://forum.xda-developers.com/showthread.php?t=2394689 but it doesn't work. I also tried to modify the properties in "build.prop" without success. Now I think this is not the problem since all the ROM's have similar properties, in special CUOCO92 that is reported to work in Italy.
What I think it happened:
When I tried to flash the "official" ROM it failed because it tried to write too many files in the "system" partition (I hadn't this problem with any other ROM). Then I realised that my phone was bought in China and this ROM was for the international version, perhaps the international version has a different partition scheme).
What I did is to remove some very easy to install apps (i.e. google maps) in the ROM in order that the remaining apps fit in the partition, but then I made the mistake to activate the option in TWPR of making "rm -rf" instead of a "format". It seems to me that with this option the rm command followed some link to another partition and removed some files that shouldn't be removed, and those files are not in any ROM.
Does anybody think that this makes sense?
What can I do?

nice, super description. i am stuck with my nubia z11 mini, brought from china. installed 1.23, recently updated new 1.36 but there is no google play, other all working perfectly.

Hi,
I have the same problem. Did you find a solution?
Thanks in advance, F.
---------- Post added at 08:17 AM ---------- Previous post was at 07:44 AM ----------
@jbartolo
I have the NX529J and the option wasn't changed, it was still format. I don't think the problem is related to the partition.

@jbartolo
Any news about your z11?
Did you manage to fix it?
I have the same problem.

efrai3 said:
@jbartolo
Any news about your z11?
Did you manage to fix it?
I have the same problem.
Click to expand...
Click to collapse
No solution :crying:
I had access to another z11 mini and a played copying partitions from this phone to my phone without success.

@jbartolo
Since you can have access to another z11 mini please check these guides
http://www.androidbrick.com/unbrick...-have-the-right-kind-of-rom-qhsusb_dload_edl/
http://www.androidbrick.com/ultimat...agon-xiaomi-mi5-imei-and-baseband-repair-fix/
http://www.androidbrick.com/ultimate-guide-qualcomm-snapdragon-imei-baseband-repair-fix-part-2/
Also you will see more guides in the mentioned site and maybe you can fix your phone. Unfortunately i dont have access to another z11 mini to try. Wish you good luck.

@jbartolo
I did some progress with my phone.
I flash it with the chinese 1.23 rom(its the one in fastboot structure as i understand,a service rom) using Xiaomi's MiFlash tool.
Phone came up with null IMEI'S and MEID. Then i write missing IMEI'S & MEID ,with some tools from the site i mentioned you in my previous post.
So everything is in place now. IMEI'S & MEID.
Now when i dal *#06#* and *#*#4636#*#* i can see Imei's & Meid.
Also i can change the option from WCDMA preferred to other options and stick with them (*#*#4636#*#*) and i can see in phone settings and SIM menu all the options.
Both sim trays read my sim and ask for pin.
In SIM menu, i can search for avalaible carriers but the only problem now is that when i'm trying to connect to my sim carrier unfortunately phone can't register to my carrier.
I'm trying to figure out how to solve this issue.
You can try what i did and maybe you are more lucky than me and can fix your phone.
Hope to hear from you soon and maybe we can share some more ideas.

efrai3 said:
@jbartolo
I did some progress with my phone.
I flash it with the chinese 1.23 rom(its the one in fastboot structure as i understand,a service rom) using Xiaomi's MiFlash tool.
Phone came up with null IMEI'S and MEID. Then i write missing IMEI'S & MEID ,with some tools from the site i mentioned you in my previous post.
So everything is in place now. IMEI'S & MEID.
Now when i dal *#06#* and *#*#4636#*#* i can see Imei's & Meid.
Also i can change the option from WCDMA preferred to other options and stick with them (*#*#4636#*#*) and i can see in phone settings and SIM menu all the options.
Both sim trays read my sim and ask for pin.
In SIM menu, i can search for avalaible carriers but the only problem now is that when i'm trying to connect to my sim carrier unfortunately phone can't register to my carrier.
I'm trying to figure out how to solve this issue.
You can try what i did and maybe you are more lucky than me and can fix your phone.
Hope to hear from you soon and maybe we can share some more ideas.
Click to expand...
Click to collapse
Take a look here https://forum.xda-developers.com/zte-z7/help/nubia-z7-nx506j-qcn-backup-t3566808. Might help you guys with the problem you are facing. Most important part is you need a working qcn backup from another device

tassos_chry said:
Take a look here https://forum.xda-developers.com/zte-z7/help/nubia-z7-nx506j-qcn-backup-t3566808. Might help you guys with the problem you are facing. Most important part is you need a working qcn backup from another device
Click to expand...
Click to collapse
Yes i know that we need a backup of qnc from another working phone in order to modify it and apply our imei's and meid, but where to find one???
It's difficult to have one as you understand.

efrai3 said:
Yes i know that we need a backup of qnc from another working phone in order to modify it and apply our imei's and meid, but where to find one???
It's difficult to have one as you understand.
Click to expand...
Click to collapse
You could contact the owner of www.androidbrick.com in case he has one. Or you can ask @jbartolo to provide a backup of his other device. Taking a qcn backup is a pretty simple procedure
@efrai3 Just contacted him again and he was happy to share with me a qcn backup for your device
You can contact him too and ask for one! He will be glad to help!

tassos_chry said:
You could contact the owner of www.androidbrick.com in case he has one. Or you can ask @jbartolo to provide a backup of his other device. Taking a qcn backup is a pretty simple procedure
@efrai3 Just contacted him again and he was happy to share with me a qcn backup for your device
Hit Thanks if i helped and let me know if it worked
Click to expand...
Click to collapse
Thanks to my friend tassos_chry, my phone is fixed.

problem solved: Z11 mini working again
All,
the AndroidBrick method worked.
First I tried it with my own qcn backup but that didn'twork. I received a qcn (Chinese, 64 GB) from AndroidBrick and I followed the repair guide. My Nubia Z11 mini is working again.
The solution for our problem is that you need a qcn backup from a working phone because when you install the wrong rom (international version) the modemst-partions are corrupt.
I'll prepare a backup qcn from my phone (changed IMEI) and I can send it to you.
Send me a mail at [email protected].
Filip.

Z11 mini NX529J problem
First of all:
>i bought an used NX529J
>first sim slot doesn't work at all, second slot recognize sim card
^-i don't know if it's software or hardware related
>no connect to carrier
>cannot unlock sim card with PIN
What i tried:
>flashed XenonHD Rom
>*#06#* : only MEID, but it is the same number, as the first IMEI number
>*#*#4636#*#* : first IMEI number
>tried all sim settings, but no connect to carrier
Has some an idea?

Hello everybody,
i found the solution! Now both sim card slot's work and can connect to carrier!
My solution:
https://forum.xda-developers.com/android/development/zte-nubia-z11-mini-nx529j-restore-t3619771

The right qcn file
FilipVD said:
All,
the AndroidBrick method worked.
First I tried it with my own qcn backup but that didn'twork. I received a qcn (Chinese, 64 GB) from AndroidBrick and I followed the repair guide. My Nubia Z11 mini is working again.
The solution for our problem is that you need a qcn backup from a working phone because when you install the wrong rom (international version) the modemst-partions are corrupt.
I'll prepare a backup qcn from my phone (changed IMEI) and I can send it to you.
Send me a mail at [email protected].
Filip.
Click to expand...
Click to collapse
Hello Filip,
Would you help me, please? I need the same chinese 64GB qcn file you got from AndroidBrick too!
I followed the same repair guide on AndroidBrick (using a vietnamite qcn file I just download) with no success because when I started restoring the qcn I received a message that My Phone is not compatible and after rebooting ...adviced me 2 times that the update did not success.
I will be happy to give my email address for your (or even other God) help.
Have a nice day and a good way

Related

[Q] IMEI is correct but no network detected MT65xx

First I'm so sorry if my question is similar with another threads. But I'm pretty sure I have been looking for the answer around the internet and of course XDA developer for a week. I follow every guide and method I found. But it still not answer of my problem.
I flashing camera driver I've got from my friend backup using TWRP backup. Actually I only need to choose uboot only to install. But I'm in hurry so I accidentally choose everything includes NVRAM. Since then I've got wrong IMEI on my phone because the IMEI overwritten with my friend phone. But it's not a problem because I can restore my original IMEI with MTKDroid & Tools.
And the problem is my IMEI is now back and corrected. But there is no network detected on the phone. SIM card detected fine. When I go to EngineerMode by pressing *#*#3646633#*#* and open Radio Information on CDS I saw IMSI field was unknown and Radio Status is turning on and off rapidly.
What I have done is :
1. Full flashing with the stock ROM via SP Flash Tools.
2. Change the IMEI with MTK Droid Tools
3. Change the IMEI with AT command ... echo 'AT+EGMR=1,7,"myIMEI1"' >/dev/pttycmd1
No result. IMEI is correct but no network.
I believe this is not a hardware problem, so please help me to solve this problem. Because it's my only phone to communicate with my whole families. I really appreciate with your help. Thanks.

Galaxy S6 G925F- "No Signal" After M IMEI Had Been Changed

Messed up with my G925F!!!
Hello , my phone suddenly was not able to make or receive any calls or joining 3G/4G network or SMS. In other words, I was out of service although my SIM had not problems to enter the PIN password and I could see signal bars.
After a little research I discovered that my IMEI and S/N number had been changed! Especially, the IMEI number became 350000000000006 (fake one) And I believe this is the reason my signal went off!
So , I just managed to download smart switch from samsung and choose "emergency software recovery and initialization -> device initialization" in an attempt to revert it to stock rom and settings (is this method unroot the phone too?)
But after this long downloading finished , the phone didn't boot , I only see the samsung galagy s6 edge logo stuck!!!!
So , I decided to root the phone again , following the guide here (link-->), zidroid.com/how-to-install-twrp-root-galaxy-s6-edge-on-android-5-1-1/
(in short words , I installed the twrp recovery with odin and I flashed 2 zip files required, from an usb-otg-flash drive, via the twrp recovery install button) and then the phone booted normaly , but the problem with the signal and wrong IMEI was still there!
I feel that I am on dead end , I don't know what to do , I am thinking about sending it to the location I bought it but I am afraid that the warranty is lost.
Please help me restore my phone back to normal
After repeating the whole procedure several times , now my phone does not recognize SIM card at all , as if it was never inserted , wtf?
Go to gsm forum and here you got help ..you have bricked imei number
Sent from my SM-G925F using Tapatalk
You have go to professional repair which they can repair your device you probably not going to restore your original IMEI back you can solved your problem
Sent from my ONE A2001 using XDA Free mobile app
Coolmfarshard said:
You have go to professional repair which they can repair your device you probably not going to restore your original IMEI back you can solved your problem
Sent from my ONE A2001 using XDA Free mobile app
Click to expand...
Click to collapse
So you mean that there isn't any way of backing up the IMEI number first before rooting or changing a rom/kernel/recovery to the phone in order not allowing this IMEI bricking happen again by means of restoring from its backup?
I googled a lot and some people suggest that they can backup EFS in some way. What is EFS exactly and how it is related to IMEI?
Also wouldn't be a good idea to find a way to backup my entire OS/firmware (not just IMEI/EFS) before doing anything , in case to save money and avoid the same bricking?
And yes , I have sent the phone to samsung service , it will cost me around 320 euros , because they discovered I changed kernel/rooted the device , and they will change motherboard.
I cannot help the phone without being rooted , I love rooting but I cannot understand why suddenly IMEI got bricked.....does it worth to take risk and root my phone again? But I want IMEI or entire OS backups first before doing that and I don't know how to achieve this without rooting first...
Please help me if you could.
You can backup your full os using twrp recovery
Also your IMEI
In SAMSUNG devices imei number stored in efs partition that's why people asking take efs backup before flashing any Rom
Sent from my ONE A2001 using XDA Free mobile app
Any efs backup file for sm-g925f 64gb where i got it?
Sent from my SM-G925F using Tapatalk
Me too!
bob7greeklover said:
After repeating the whole procedure several times , now my phone does not recognize SIM card at all , as if it was never inserted , wtf?
Click to expand...
Click to collapse
Me too! I have the exact same IEMI number! Mine stopped working after about a month. I tried to return to seller no response. I tried to send phone back they would not accept phone, so it is on it's way back to me. Once I get it back I will try what you did.
I have taken it to factory settings 3 times no luck. I will try your process once I get me phone back.
Thanks!
---------- Post added at 02:25 AM ---------- Previous post was at 02:16 AM ----------
bob7greeklover said:
After repeating the whole procedure several times , now my phone does not recognize SIM card at all , as if it was never inserted , wtf?
Click to expand...
Click to collapse
I did contact one of those fellows a reputable one that can change your IEMI. Well once he heard that crazy IEMI number, he said because it was changed once before to something like he doubted he could change it again and save my phone. To try he charges 100 US plus I have shipping there and back. Yikes.
So any advice you can give me I would truly appreciate.
Thanks!
g925f imei repair
new g925f repair method
repair ok
:good::good::good::good::good::good::good::good:
Mine went down recently with the exact same IMEI and no SN. TWRP was failing to restore the efs partition damaging the files in the process. Long story short, I had to manually extract the efs files, copy them across and fiddle about with permissions but I'm working again.
That nugget rings true - always backup the efs before changing anything.
But for that reputable fellow to say that the IMEI had been changed before because of what it had become, and insinuating that the imei couldn't be changed more than once was complete twaddle. I wouldn't trust him near any of my phones.
On a lighter note I'm sure there's got to be a member on here would sort it for beer tokens
Happened to me, I thought it was faulty ROM and all but then I realized it was simply apn setting. Resetting it to default did the trick. It can be found in Settings > Mobile networks > Access Point Names
bob7greeklover said:
Hello , my phone suddenly was not able to make or receive any calls or joining 3G/4G network or SMS. In other words, I was out of service although my SIM had not problems to enter the PIN password and I could see signal bars.
After a little research I discovered that my IMEI and S/N number had been changed! Especially, the IMEI number became 350000000000006 (fake one) And I believe this is the reason my signal went off!
So , I just managed to download smart switch from samsung and choose "emergency software recovery and initialization -> device initialization" in an attempt to revert it to stock rom and settings (is this method unroot the phone too?)
But after this long downloading finished , the phone didn't boot , I only see the samsung galagy s6 edge logo stuck!!!!
So , I decided to root the phone again , following the guide here (link-->), zidroid.com/how-to-install-twrp-root-galaxy-s6-edge-on-android-5-1-1/
(in short words , I installed the twrp recovery with odin and I flashed 2 zip files required, from an usb-otg-flash drive, via the twrp recovery install button) and then the phone booted normaly , but the problem with the signal and wrong IMEI was still there!
I feel that I am on dead end , I don't know what to do , I am thinking about sending it to the location I bought it but I am afraid that the warranty is lost.
Please help me restore my phone back to normal
Click to expand...
Click to collapse
user0604 said:
Happened to me, I thought it was faulty ROM and all but then I realized it was simply apn setting. Resetting it to default did the trick. It can be found in Settings > Mobile networks > Access Point Names
Click to expand...
Click to collapse
Since this thread is quite old and people keep answering , I want to end it like this:
Back then I didn't avoid to pay about 300 euros to replace its motherboard to a samsung shop. But I learned lately that the issue was due to an app called "USB OTG Helper" (https://play.google.com/store/apps/details?id=net.shajul.usbotg&hl=en) which allows you to insert NTFS USB flash drives to your OTG phone but also enables a system partition , including EMS files to be visible.
And you can guess what happened next , I deleted this system partition which this app made it visible and yes , my IMEI was gone!!! After some months , I repeated the same delete thing , but previously I had backed up via TWRP the EFS and MODEM partitions. My phone lost IMEI again , as expected , but after restoring EFS and MODEM , the IMEI was back!!
To sum up , never delete files or partitions that look like "system" like bluetooth and imei folders when you are root AND always have a backup of all your rom via twrp or something else before changing/deleting/flashing anything related to your system.

Help about sim cards detection.

Hello, and thanks for helping me: I've used a Z7 Max since many month on 3.08 flashed on my phone without any problems. but after having flashed a new rom today (yirom's CM12), the phone cannot detect any sim, in no one slot.
I've tried to go back to 3.08, with nubia tool updater and with twrp recovery, but even after full wipes, impossible to detect sim cards. If I Check Msim settings, it says "deactivate", not "no card".
The phone never answer sim lock pin .
Is there a way to get out of there? Thank you very much and sorry for my english.
Flash another ROM (Z7max(NX505J)电信4G双卡 V3.22)
It is not a rom problem. I have lost IMEI, but have the .nv file. But when i try to nrestore them with qbst, the phone answer the pin code again and again and again....
Use google search
Stupid. For those who have this problem, i solved it by trying again 'd again with qbst (and force efs verification). Nota: my computer did 3 *.nv backup of imei, only one was correct, the bigger one.

No Service (Radio Off) Redmi Note 4 Global Version Problem

Hi guys,
I have Redmi Note 4 Global version (SD625 4gb RAM 64gb storage). I had a problem about IMEI and tried to fix it. Finally i fixed it, but now when i insert the sim card, phone recognises the sim card, asks me pin code. No problem till here. After entering pin code, phone unlocks but there is no service all the time. When i try to make a call it says "Turn off airplane mode to make a call." and "RADIO OFF" in the screen, as i marked in the photo.
In the Hardware Test section (*#*#6484#*#*) sim detect "passed" as showed at the picture.
What i did for fixing;
1. Flashed china developer rom; did not work,
2. Flashed global developer rom; did not work,
3. Flashed NON-HLOS.bin file from gobal developer rom via fastboot adb; did not work,
4. Flashed gobal stable rom; did not work,
5. Flashed NON-HLOS.bin file from gobal stable rom via fastboot adb; did not work,
6. Tried to flashed .qcn file from another Redmi Note 4 Global version but get an error on this and could ot do this,
7. Flashed RR rom by TWTP, clean flash; didn't work,
8. Flashed latest developer rom from xiaomi.eu; didn't work.
I show about phone section for my phone at the picture too. I have bootloader unlocked, no root access for now (i had before and can get easly)
Please help...
Non hlos is for baseband and ur baseband is perfect as your wifi is working. Chk your sim or go to service centre but before that. Flash global stable 8.2.5 dont go there with custom rom installed
flash full rom by fastboot method
sudeep22 said:
flash full rom by fastboot method
Click to expand...
Click to collapse
I flashed global stable rom which I downloaded from MIUI site via fastboot with delete all option before, nothing changed. What do you mean as full rom?
wolfson61 said:
I flashed global stable rom which I downloaded from MIUI site via fastboot with delete all option before, nothing changed. What do you mean as full rom?
Click to expand...
Click to collapse
how much time it taken to complete flashing
sudeep22 said:
how much time it taken to complete flashing
Click to expand...
Click to collapse
I just flashed with flash all option and it took 353 seconds, you can see in the picture.
but later i realized there ise another option on mi flash tool's drop-down menu, it says "flash_factory.bat" tried to flash with this option but i got an error, i think rom must be different for this option. so i will google for that, do you think it could help?
wolfson61 said:
I just flashed with flash all option and it took 353 seconds, you can see in the picture.
but later i realized there ise another option on mi flash tool's drop-down menu, it says "flash_factory.bat" tried to flash with this option but i got an error, i think rom must be different for this option. so i will google for that, do you think it could help?
Click to expand...
Click to collapse
you should ask for .xqcn or .qcn file of working redmi note 4 mobile here or in community , then you restore it. It will restore all baseband in your mobile and surely solve your problem, but it will also restore IMEI of that mobile in your mobile, so you should try this with your nearby users which can easily support you and later you can change imei with your own IMEI
here a link of smilllar situation and has .qcn http://en.miui.com/thread-545300-1-1.html
you may try it your own risk
I have another Redmi Note 4 global version. I will try vith it.
say thanks
thanks broooooo
My problem is solved. I restored qcn file from another redmi note 4 global, and gsm serice is back.
In fact, i tried it before but got an error says "The ESN of the phone does not match the ESN of this file containing RF calibration data" so i had cancelled the process. But just a little time before now tried the same way and got same error. I googled it a little and found a way. I checked "Allow phone/file esn mismatch" option and the process succeed. And nothing happend to my origina IMEI.
Pliz share ur qcn file of redmi note 4 global, Indian version qcn doesn't work, pliz
Pliz share ur qcn, I will use my imei, don't worry, pliz share it.
hi bro i have redmi note 4 global . having issue no service on sim1 and sim2 work in 2g only mode . plz send me qcn file my phone , i will change my imei what orginal i have. i m in stress, plz help me, best regard,
wolfson61 said:
My problem is solved. I restored qcn file from another redmi note 4 global, and gsm serice is back.
In fact, i tried it before but got an error says "The ESN of the phone does not match the ESN of this file containing RF calibration data" so i had cancelled the process. But just a little time before now tried the same way and got same error. I googled it a little and found a way. I checked "Allow phone/file esn mismatch" option and the process succeed. And nothing happend to my origina IMEI.
Click to expand...
Click to collapse
I am having trouble getting the .qcn file from the global version, could you please make the link file available?
wolfson61 said:
My problem is solved. I restored qcn file from another redmi note 4 global, and gsm serice is back.
In fact, i tried it before but got an error says "The ESN of the phone does not match the ESN of this file containing RF calibration data" so i had cancelled the process. But just a little time before now tried the same way and got same error. I googled it a little and found a way. I checked "Allow phone/file esn mismatch" option and the process succeed. And nothing happend to my origina IMEI.
Click to expand...
Click to collapse
same here i have two note 4x one says no service i bacck up the qcn file from the other and restored it imeis became same then i chnaged imeis but still no service
If someone could share a xqcn file for a Redmi Note 4 (2016102 model) with me. Have the original Imeis written down from the box. I backed up my own xqcn, but obviously since my imei is gone I cannot find the adresses to edit them back in.
I have same problem Radio turned off and MI service center advised to change motherboard which will cost almost price of a new phone. Will this issue also cause because of a hardware issue?
Hi to everyone and very sorry for not replying. I didn't get any notifications from the app for your posts.
I had opened the same topic at mi forum. Here is the link: http://en.miui.com/thread-686524-1-1.html
You will find more information there.
For Any Mi Device if radio is off
first need to flash with edl or fastboot mode for any issue related to network baseband imei radio,but after all there is no luck
for Radio off you need to write QCN only with any tool like UMT,CM2,Miracle,Qpst and etc whatever you have you need to read a fresh qcn with same model phone using tools and write on your damaged else search on internet for qcn and write with same tool of qcn backup after this process reboot your phone and check your imei if all is well there no need to do anything else need change your imei with original imei and enjoy your phone
---------- Post added at 02:01 PM ---------- Previous post was at 01:56 PM ----------
write any qcn file for same model and change imei with original IMEi by UMT/miracle no need to change qcn in ultraedit software if you are not much expert you can fix in few step easily bro using this kind of tool ask if is there any query
wolfson61 said:
My problem is solved. I restored qcn file from another redmi note 4 global, and gsm serice is back.
In fact, i tried it before but got an error says "The ESN of the phone does not match the ESN of this file containing RF calibration data" so i had cancelled the process. But just a little time before now tried the same way and got same error. I googled it a little and found a way. I checked "Allow phone/file esn mismatch" option and the process succeed. And nothing happend to my origina IMEI.
Click to expand...
Click to collapse
I'm wondering what caused the issue in the first place.
dustojnikhummer said:
I'm wondering what caused the issue in the first place.
Click to expand...
Click to collapse
I have no idea.

[GUIDE] Restore baseband - K6 Note - when no IMEI/no outgoing calls/WiFi or BT issues

Hi all,
I just wanted to share what I did when I had a few problems with my Lenovo K6 Note - karatep.
What did I do which ruined my phone?
I unlocked my bootloader, still on stock ROM, haven't installed TWRP yet.
Since then no calls on non-VoLTE network like Vodafone/Airtel/BSNL.
Primary SIM doesn't connect to any other network than 4G.
I had installed CM15.1 ROM with TWRP and Magisk root and I had the same network issues.
When should you follow this guide?
You have problems with network connectivity where you can't make calls on 3G or 2G network.
Primary (data) slot doesn't connect to 3G or 2G.
No signal on either one slot or both the slots.
IMEI shown as null or 0.
WiFi and Bluetooth address either different or shown as unavailable.
Rebooting to fastboot and performing "fastboot erase modemst1; fastboot erase modemst2" didn't work for you and lost your IMEI and/or WiFi and Bluetooth address.
Do not reboot to fastboot and execute "fastboot erase modemst1; fastboot erase modemst2". I lost my IMEI and MAC because of this.
Requirements:
1. Your phone needs to have root access.
2. Your original IMEI numbers and WiFi address, you can find them from your phone's packaging box.
If you don't have your IMEI, better use an IMEI from an old/dead phone of yours. Don't google this up, there can be blacklisted IMEIs.
Steps:
Preparing the .QCN file for restoration
Download and install UltraEdit (you can google up this for the link)
Download and install Qualcomm QPST/QFIL downloader (google it again)
Download IMEI Converter (find it in the attachments below)
Download .QCN file (find it in attachments, this is for Lenovo K6 Note - karatep)
Get your IMEI (for both the slots), WiFi and Bluetooth addresses
Open IMEI Converter and type your IMEI. You will get the hexcode for your IMEI, get the hexcode for both of your IMEIs. Copy the hexcodes.
Open the .QCN file with UltraEdit and search for "08 8A 11 11 11 11 11 11 11" (without the quotes). This is the dummy IMEI in the file, you have to replace it with your phone's IMEI.
In UltraEdit, goto find and replace, search for 08 8A 11 11 11 11 11 11 11 and replace it with your IMEI's hexcode. You have to replace the first hexcode with the hexcode for your second slot's IMEI and the second hexcode with the hexcode for your first slot's IMEI.
Search for AA AA AA AA AA AA and replace it with your WiFi MAC address, this has to update your Bluetooth address as well, there are four places where you have to replace it with your WiFi MAC address.
Save the .QCN file and close UltraEdit.
Enabling DIAG COM port on your phone to download .QCN to your phone
Execute in command prompt.
adb shell
su
setprop sys.usb.config diag,adb
Click to expand...
Click to collapse
This will enable the diagnostic port on your phone.
Restoring .QCN to your phone
Open QFIL as administrator.
Connect your phone to your computer, keep your phone powered on with DIAG port enabled.
Goto Tools -> QCN Backup Restore
Browse your edited .QCN file
Don't change SPC code - leave it as such.
Select Enable Multi-SIM.
Click on Restore QCN.
This will take some time, once done, restart your phone.
Voila! Your IMEI, WiFi and Bluetooth addresses should be updated and network should be able to receive signal and place calls.
Please feel free to reach me if you run into any issues, I'll try my best to help you!
Thanks,
tfr!
reserved
anyone with .QCN file for K6 Power (k33a42)?
If you di then please share it or tell me where to get it!
Thanks in advance.
manishurfmannu said:
anyone with .QCN file for K6 Power (k33a42)?
If you di then please share it or tell me where to get it!
Thanks in advance.
Click to expand...
Click to collapse
If you get qcn file for Lenovo k6 power share with me
pranavpro0001 said:
If you get qcn file for Lenovo k6 power share with me
Click to expand...
Click to collapse
flash the stock S223 firmware, it will fix the issue.
manishurfmannu said:
flash the stock S223 firmware, it will fix the issue.
Click to expand...
Click to collapse
No it will not. Flashing stock firmware even with QFIL will not fix baseband issue.
I did this but....
theflyingrahul said:
Hi all,
I just wanted to share what I did when I had a few problems with my Lenovo K6 Note - karatep.
What did I do which ruined my phone?
I unlocked my bootloader, still on stock ROM, haven't installed TWRP yet.
Since then no calls on non-VoLTE network like Vodafone/Airtel/BSNL.
Primary SIM doesn't connect to any other network than 4G.
I had installed CM15.1 ROM with TWRP and Magisk root and I had the same network issues.
When should you follow this guide?
You have problems with network connectivity where you can't make calls on 3G or 2G network.
Primary (data) slot doesn't connect to 3G or 2G.
No signal on either one slot or both the slots.
IMEI shown as null or 0.
WiFi and Bluetooth address either different or shown as unavailable.
Rebooting to fastboot and performing "fastboot erase modemst1; fastboot erase modemst2" didn't work for you and lost your IMEI and/or WiFi and Bluetooth address.
Do not reboot to fastboot and execute "fastboot erase modemst1; fastboot erase modemst2". I lost my IMEI and MAC because of this.
Requirements:
1. Your phone needs to have root access.
2. Your original IMEI numbers and WiFi address, you can find them from your phone's packaging box.
If you don't have your IMEI, better use an IMEI from an old/dead phone of yours. Don't google this up, there can be blacklisted IMEIs.
Steps:
Preparing the .QCN file for restoration
Download and install UltraEdit (you can google up this for the link)
Download and install Qualcomm QPST/QFIL downloader (google it again)
Download IMEI Converter (find it in the attachments below)
Download .QCN file (find it in attachments, this is for Lenovo K6 Note - karatep)
Get your IMEI (for both the slots), WiFi and Bluetooth addresses
Open IMEI Converter and type your IMEI. You will get the hexcode for your IMEI, get the hexcode for both of your IMEIs. Copy the hexcodes.
Open the .QCN file with UltraEdit and search for "08 8A 11 11 11 11 11 11 11" (without the quotes). This is the dummy IMEI in the file, you have to replace it with your phone's IMEI.
In UltraEdit, goto find and replace, search for 08 8A 11 11 11 11 11 11 11 and replace it with your IMEI's hexcode. You have to replace the first hexcode with the hexcode for your second slot's IMEI and the second hexcode with the hexcode for your first slot's IMEI.
Search for AA AA AA AA AA AA and replace it with your WiFi MAC address, this has to update your Bluetooth address as well, there are four places where you have to replace it with your WiFi MAC address.
Save the .QCN file and close UltraEdit.
Enabling DIAG COM port on your phone to download .QCN to your phone
Execute in command prompt.
This will enable the diagnostic port on your phone.
Restoring .QCN to your phone
Open QFIL as administrator.
Connect your phone to your computer, keep your phone powered on with DIAG port enabled.
Goto Tools -> QCN Backup Restore
Browse your edited .QCN file
Don't change SPC code - leave it as such.
Select Enable Multi-SIM.
Click on Restore QCN.
This will take some time, once done, restart your phone.
Voila! Your IMEI, WiFi and Bluetooth addresses should be updated and network should be able to receive signal and place calls.
Please feel free to reach me if you run into any issues, I'll try my best to help you!
Thanks,
tfr!
Click to expand...
Click to collapse
i have Lenovo k6 note ,i don't know about the karatep part, it's in the vibe series ,k53a48 is the name with 4 GB ram,
I lost my IMEI, sn etc after doing the fastboot commands in an attempt to fix the common radio band issue of enabling us bands..but wifi, Bluetooth, etc weren't affected at all..
I've flashed qcn file from a youtube video after editing the IMEI to my own ..everything is restored, baseband,SN number(sn number is not mine tho),IMEI all..
but,
my phone still cant read sim cards, it says that the sim is not ready.. earlier the phone couldn't even recognize that i ve inserted the sim but after the qcn flash it can do that..but still it says sim card not ready...
please help me sir its been months! please?
i m running on the stock rom of Lenovo k6 note
guitargeek0517 said:
i have Lenovo k6 note ,i don't know about the karatep part, it's in the vibe series ,k53a48 is the name with 4 GB ram,
I lost my IMEI, sn etc after doing the fastboot commands in an attempt to fix the common radio band issue of enabling us bands..but wifi, Bluetooth, etc weren't affected at all..
I've flashed qcn file from a youtube video after editing the IMEI to my own ..everything is restored, baseband,SN number(sn number is not mine tho),IMEI all..
but,
my phone still cant read sim cards, it says that the sim is not ready.. earlier the phone couldn't even recognize that i ve inserted the sim but after the qcn flash it can do that..but still it says sim card not ready...
please help me sir its been months! please?
i m running on the stock rom of Lenovo k6 note
Click to expand...
Click to collapse
Hello,
Sorry for the late reply, we have a bad network connection here due to the lockdown.
Coming to your problem, karatep simply refers to K6 Note, so you have done the right procedure hopefully.
Can you see the IMEI when you enter *#06# in the Dialer?
You're on stock ROM right? Where did you get it from? You did a full flash with QFIL or a ROM flash only? Please note that ROM flashes can be dirty.
If you can see your IMEI, please try the following in the order I've mentioned below.
1. Check the network settings and select the proper network type. Especially if you are on Jio, set it to LTE only, make sure that the non-Jio SIM is set to GSM only. This is the most common problem.
2. Perform a full system reset from recovery, must solve the problem usually.
3. Try lineage 15.1 or 16.0, you'll be able to find the links here, they are really stable and worth upgrading.
4. Full factory flash with QFIL, you should be able to find videos on YouTube, else let me know, I'll be happy to help!
Let me know the results.
Happy to help!
rah.
theflyingrahul said:
Hello,
Sorry for the late reply, we have a bad network connection here due to the lockdown.
Coming to your problem, karatep simply refers to K6 Note, so you have done the right procedure hopefully.
Can you see the IMEI when you enter *#06# in the Dialer?
You're on stock ROM right? Where did you get it from? You did a full flash with QFIL or a ROM flash only? Please note that ROM flashes can be dirty.
If you can see your IMEI, please try the following in the order I've mentioned below.
1. Check the network settings and select the proper network type. Especially if you are on Jio, set it to LTE only, make sure that the non-Jio SIM is set to GSM only. This is the most common problem.
2. Perform a full system reset from recovery, must solve the problem usually.
3. Try lineage 15.1 or 16.0, you'll be able to find the links here, they are really stable and worth upgrading.
4. Full factory flash with QFIL, you should be able to find videos on YouTube, else let me know, I'll be happy to help!
Let me know the results.
Happy to help!
rah.
Click to expand...
Click to collapse
Thank you for the reply,
i do see my imei when i enter the code, Its the sn number that has been changed..
and about the stock rom part, I didn't do it by myself, i had given the phone to a repair shop earlier to fix the issue, this was before i flashed the QCN myself,
i flashed the qcn from a youtube video and all that guy had told was to have stock rom marshmallow, the repair shop had flashed a marshmallow rom so i figured it would do.. but i dont know what tool they used to flash it..
i used QFIL to flash the QCN though..
Let me try the factory reset solution and if that dont work i ll try to flash stock rom again...
for the other two,
1. The network settings are inaccessible for me(i tried to attach screenshots but its asking for URLs)
3. I really dont want to use lineage OS if i dont have to..
let me try the other solutions and i ll let you know..
thank you so much for helping me..
guitargeek0517 said:
Thank you for the reply,
i do see my imei when i enter the code, Its the sn number that has been changed..
and about the stock rom part, I didn't do it by myself, i had given the phone to a repair shop earlier to fix the issue, this was before i flashed the QCN myself,
i flashed the qcn from a youtube video and all that guy had told was to have stock rom marshmallow, the repair shop had flashed a marshmallow rom so i figured it would do.. but i dont know what tool they used to flash it..
i used QFIL to flash the QCN though..
Let me try the factory reset solution and if that dont work i ll try to flash stock rom again...
for the other two,
1. The network settings are inaccessible for me(i tried to attach screenshots but its asking for URLs)
3. I really dont want to use lineage OS if i dont have to..
let me try the other solutions and i ll let you know..
thank you so much for helping me..
Click to expand...
Click to collapse
Hello,
You cannot do anything about the serial number, there is currently no way to restore it, it should not limit the functionality of the device.
Is your phone rooted now? Do you have TWRP installed? Try resetting the phone from TWRP. If it doesn't work, restore stock rom with QFIL. Restoring with QFIL will reprogram your eMMC chip and revert it to stock, TWRP will be removed. This will give you the cleanest possible install.
For flashing QCN, you don't need stock Marshmallow. I'm on Lineage 16.0 and I keep changing my MAC address with QFIL, that is not a problem at all.
I'd like to see the screenshots, you can add them as attachments... Use the paper clip icon above, else upload the image to Google Drive and put the URL here.
Happy to help!
rah.
guitargeek0517 said:
Thank you for the reply,
i do see my imei when i enter the code, Its the sn number that has been changed..
and about the stock rom part, I didn't do it by myself, i had given the phone to a repair shop earlier to fix the issue, this was before i flashed the QCN myself,
i flashed the qcn from a youtube video and all that guy had told was to have stock rom marshmallow, the repair shop had flashed a marshmallow rom so i figured it would do.. but i dont know what tool they used to flash it..
i used QFIL to flash the QCN though..
Let me try the factory reset solution and if that dont work i ll try to flash stock rom again...
for the other two,
1. The network settings are inaccessible for me(i tried to attach screenshots but its asking for URLs)
3. I really dont want to use lineage OS if i dont have to..
let me try the other solutions and i ll let you know..
thank you so much for helping me..
Click to expand...
Click to collapse
What's your network BTW?
Here are the screenshots
https://drive.google.com/folderview?id=1Bxed7rCpd0MoVbnZCSGtJBjAlmgVkF1r
And no my phone is not rooted and nor is TWRP installed..i was planning on rooting it as a last resort..
I m now currently downloading the stock rom file..its nearly completed..
Should i try rooting it before flashing stock? I dont want to risk another brick cause of rooting
guitargeek0517 said:
https://drive.google.com/folderview?id=1Bxed7rCpd0MoVbnZCSGtJBjAlmgVkF1r
And no my phone is not rooted and nor is TWRP installed..i was planning on rooting it as a last resort..
I m now currently downloading the stock rom file..its nearly completed..
Should i try rooting it before flashing stock? I dont want to risk another brick cause of rooting
Click to expand...
Click to collapse
You don't have to root if you're flashing with QFIL.
How did you flash the QCN without root anyways?
Again, what network are you in?
theflyingrahul said:
You don't have to root if you're flashing with QFIL.
How did you flash the QCN without root anyways?
Again, what network are you in?
Click to expand...
Click to collapse
i followed this youtube video..
https://www.youtube.com/watch?v=1-4tmWvTGiI
i remember reading about it somewhere.. you only need to enable diagnostic mode to flash QCN, and many phones require root to enable this port, and some other need root to unlock to bootloader..
but k53a48 phones have unlocked bootloader and diagnostic mode port can be enabled easily like the guy in the youtube video..
(power off and press power button and volume up till a screen comes on and then connecting the USB, the PC installs the diagnostic port..
this is what i think happened.. i had zero errors during qcn flashing and i hope i didn't do it wrong?
I Have idea network if that is what you asked
The ROM download is complete..so i ll start flashing then?
guitargeek0517 said:
i followed this youtube video..
https://www.youtube.com/watch?v=1-4tmWvTGiI
i remember reading about it somewhere.. you only need to enable diagnostic mode to flash QCN, and many phones require root to enable this port, and some other need root to unlock to bootloader..
but k53a48 phones have unlocked bootloader and diagnostic mode port can be enabled easily like the guy in the youtube video..
(power off and press power button and volume up till a screen comes on and then connecting the USB, the PC installs the diagnostic port..
this is what i think happened.. i had zero errors during qcn flashing and i hope i didn't do it wrong?
I Have idea network if that is what you asked
The ROM download is complete..so i ll start flashing then?
Click to expand...
Click to collapse
It's correct that you have to enable only the diagnostic port to download QCN, but I'm not sure of the procedure that you describe here....
K6 Note doesn't come with an unlocked bootloader by default, you'll have to manually unlock.
I'm not sure of the technique that is shown in the video, the general procedure to open the diagnostic port is through adb. But if you are sure that the IMEI is flashed correctly, then there's nothing to worry about I guess.
Again, you're going to flash the S223 ROM using QFIL right?
Your network is fine, it's non-VoLTE, so calls should work if you have restored the QCN properly.
I m downloading the rom from a link in the description of a video..there were multiple stock files and i asked the youtuber and he told me download this one..
Lenovo_K6_Note_K53A48_K53_USR_S306_1709051329_Q00440_POLK_QPST
This is the one that i downloaded.. why are there so many stock files anyway? Is this right? Else
Would flashing stock using lenovo moto assistant application work?
Some people in xda had success using lenovo moto assistant..but the application asks for HW code and I cannot find my HW code from my sn number- HNB1GDX3 ,
No calls are not working, even ussd codes arent working..does that mean that even the qcn flash was done wrong ?:crying:
guitargeek0517 said:
I m downloading the rom from a link in the description of a video..there were multiple stock files and i asked the youtuber and he told me download this one..
Lenovo_K6_Note_K53A48_K53_USR_S306_1709051329_Q00440_POLK_QPST
This is the one that i downloaded.. why are there so many stock files anyway? Is this right? Else
Would flashing stock using lenovo moto assistant application work?
Some people in xda had success using lenovo moto assistant..but the application asks for HW code and I cannot find my HW code from my sn number- HNB1GDX3 ,
No calls are not working, even ussd codes arent working..does that mean that even the qcn flash was done wrong ?:crying:
Click to expand...
Click to collapse
Hello,
The file seems to be correct. You should install QPST and use it to flash the ROM file.
Lenovo moto assistant might work, I had no success with that though.
The QCN that you used might be probably dirty, I'd suggest you to reflash with QPST and try burning the QCN again. Generate a new QCN before you do.
Sir, I Did custom ROM flash for lenovo K6 note, with twrp and lineage OS 16, after completion of ROM flash, although I have IMEI number, wifi MAC address in about phone section
My problems to FIX:
------------------------
1) Need Volte support(VOLTE not supporting for my JIO SIM)
2) *#06# IMEI code not working(IT shows "Connection problem or invalid MMI code." although the IMEI numbers are available in About phone category under settings)
3) In settings Bluetooth address "Unavailable"
FayazD said:
Sir, I Did custom ROM flash for lenovo K6 note, with twrp and lineage OS 16, after completion of ROM flash, although I have IMEI number, wifi MAC address in about phone section
My problems to FIX:
------------------------
1) Need Volte support(VOLTE not supporting for my JIO SIM)
2) *#06# IMEI code not working(IT shows "Connection problem or invalid MMI code." although the IMEI numbers are available in About phone category under settings)
3) In settings Bluetooth address "Unavailable"
Click to expand...
Click to collapse
Hey FayazD,
What you've mentioned seems to be a common problem and I couldn't really find a fix.
1). VoLTE doesn't seem to work. Before writing this post (restoring the baseband), no other calls except VoLTE ones worked for me. After restoring the baseband, 3G/2G calls work and VoLTE doesn't work. I'm not sure if there is a fix for that.
2). This could probably be an issue with the ROM itself. Try to flash a different ROM, I recommend AEX, which I'm currently using and is very stable.
3). The Bluetooth address issue again is something which I observed in Lineage 16. It shouldn't affect the functionality, except for the changing Bluetooth address on every reboot. Not sure if it is an issue with the ROM itself, try AEX, this issue isn't present there. Again note that the Bluetooth address could be shown as "Unavailable" when Bluetooth is turned off.
Will update if there is a solution for the VoLTE thingy.
theflyingrahul said:
Hey FayazD,
What you've mentioned seems to be a common problem and I couldn't really find a fix.
1). VoLTE doesn't seem to work. Before writing this post (restoring the baseband), no other calls except VoLTE ones worked for me. After restoring the baseband, 3G/2G calls work and VoLTE doesn't work. I'm not sure if there is a fix for that.
2). This could probably be an issue with the ROM itself. Try to flash a different ROM, I recommend AEX, which I'm currently using and is very stable.
3). The Bluetooth address issue again is something which I observed in Lineage 16. It shouldn't affect the functionality, except for the changing Bluetooth address on every reboot. Not sure if it is an issue with the ROM itself, try AEX, this issue isn't present there. Again note that the Bluetooth address could be shown as "Unavailable" when Bluetooth is turned off.
Will update if there is a solution for the VoLTE thingy.
Click to expand...
Click to collapse
In AEX the VOLTE will work or not, if you give me the assurance i'll flash with AEX

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