invaild imei (MTK6577) Bug - Android Q&A, Help & Troubleshooting

hello members of xda devs after full reset (deleteing all data)
there sim in phone and said invaild imei
what i can do to fix this ?
MTK6577 Chip , Android 4.0.9 (Bedove i5) its my device
Thanks for helpers

I join the thread, I have this on Lenovo A660. How to recover IMEI, I cannot use any network SIM card.

I had this problem too but I had a backup of my imei so I could restore it with mtk uncle tools. Maybe if the imei is written on the back of the phone or somewhere inside of it you could edit an imei backup so you could restore it.

Yes, but how to do it? Of course I have IMEI nr of the phone.

You will not find any help here on this. The only way XDA supports on fixing an IMEI is by restoring a backup that should have been made before doing anything to the device.
Thread closed

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.

[Q] Lenovo A660 phone function problem?

Hi All!
I need help from you, because I made a mistake.
The story:
I have 2 Lenovo A660 phone (Phone_A and Phone_B). Both of them were working with full functionality. Once I made a full TWRP backup from Phone_A (NVRAM too) I tried to restore it on the other Phone_B. The restore was successful, but after that I can't use the phone function on the Phone_B: no PIN request, and SIM management item is grey in the Settings menu.
As I think, it is because of the NVRAM restore (IMEI numbers and anything). Yes of course, I don't have a backup from Phone_B before that... :angel:
What I tried to repair:
I restored the original stock ROM (A660_S019_1208024) to the Phone_B and I restored the IMEI numbers and SERIAL (what I found behind the battery) with IMEI&SN Writer V1.5.3. (with the stock ROM's ModemDB and APDB)
...After that the problem still present...
Then I flashed the A660_S025_121122 ROM and I restored the IMEI numbers and SERIAL again.
...After that the problem still present...
I checked the IMEI settings with Mobile Uncle and it seems like good.
I know that, it isn't a simple problem, but I think here are the most experienced people to solve hard problems.
I don't know what I have to do? Do you have any idea?:crying::crying::crying:
Thanks in advance!

rewrite permantly imei - nvram

Hello guys! I have a problem with imei. I have a MTK device. I flash it to.upgrade to 4.4 . i lost imei. I try to replace with engineering MTK But not work. If i replace with mtkdroid work But if i Reset the Phone i lost again. I found old backup, if i try to flash it not recognized imei (maybe because for the upgrade i use flash tool into "format all + download"?)
However i try to upgrade again and with mtkdroidtool i replace the nvram. Its OK...But the imei si not Like under the battery. Well ... Write manually imei...work...But Like before if i Reset phone i lost imei But not all !!! On the phone rema in the old wrong imei.
So...i.think ...there si some kind of tool to rewrite imei manuallu forma restore.permantly?

generic IMEI 0049 and exynos

Hi,
after some flash i get IMEI null/null and unknow baseband... I follow some guides and now after some stuck on boot, Everything works, unless the IMEI.. it start with 0049.... a generic IMEI.
Now the problem is that i tried some guides but these are just for qualcom or MTK processor. I can't find anything for exynos.. what can i do? I read something about EFS (that the imei is this folder ); I saw some guides that put imei by modify some file by HEX in EFS folder.
I know that it's illegal change imei, but i want just my phone back! :crying:
hi! Same problem here. Did you find any help?
@ssl3vin You have to repair your IMEI using z3x box after rooting your phone !!:good:

[SOLVED] My phone don't have IMEI code

Hello, i'have redmi note 9 (merlin).
I had brick my phone with MTK (all data deleted).
But actually i'have flash my phone with stock rom (android 11, miui 12.5.4) and i root this (magisk) and it work!
But my MEI code not are in my phone
no IMEI = no sms, no 4g, ...
How to write my old IMEI code on my phone ?
(I still have the phone box, so I know the old code)
Thanks in advance <3
(i'm french, sorry for my spelling)
Changing or repairing an IMEI code is considered illegal in some countries/regions. But, if you still have a box as you said, you can search online on how to repair the deleted IMEI number. Losing an IMEI is rare and occurs if you've done something to the critical partitions.
Also, could you see any signal on your phone before rooting it with magisk? Or, was it gone right after the main flash?
Mineplayerminer said:
Changing or repairing an IMEI code is considered illegal in some countries/regions. But, if you still have a box as you said, you can search online on how to repair the deleted IMEI number. Losing an IMEI is rare and occurs if you've done something to the critical partitions.
Also, could you see any signal on your phone before rooting it with magisk? Or, was it gone right after the main flash?
Click to expand...
Click to collapse
My IMEI has deleted after repair my phone with SP Flash Tool.
It's good ! I have write my IMEI on my phone.
I use MTK META Utility (for run phone on "META MODE")
and i use Modem META for write IMEI
My problem is solved!
Loyerss said:
It's good ! I have write my IMEI on my phone.
I use MTK META Utility (for run phone on "META MODE")
and i use Modem META for write IMEI
My problem is solved!
Click to expand...
Click to collapse
can you give ne guide bro?
Loyerss said:
It's good ! I have write my IMEI on my phone.
I use MTK META Utility (for run phone on "META MODE")
and i use Modem META for write IMEI
My problem is solved!
Click to expand...
Click to collapse
PLEASE TELL WHICH FILE FROM WHERE TO DOWNLOAD AND WHAT ARE THE STEPS????

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