Locked myself out of CSC changing screen [Help] - Samsung Galaxy Note 20 Questions & Answers

Obligatory - This is my first post here, please go easy on me. If this is the wrong section please point me where I need to go.
Okay, I have been having issues getting IMS registration (for att) on my N20U (unbranded) Snapdragon. This is an issue because I don't receive most calls without VoLTE, and the service I am using is actually FirstNet. (An at&t service that provides priority cell tower access for first responders.) Who is also dropping legacy 3G and analogue calling at the end of the year.
The FN sim I was given would not change the network CSC to ATT like it should have in order to work properly.
I was able to get to the manual CSC change menu through the dialer code with a TFW-att sim card (yes, while on oneUI 3.0). I suppose the menu is locked out when other csc's are active.
This allowed me to force change to ATT's csc, then place my FN sim in the phone. The kicker? I had to toggle "do not auto update CSC based on sim data" in the menu to get this method to stick.
Things are grand, working fine, but i got curious as to what options the other csc's had to offer. So i start flipping through the list and end up landing on.....you guessed it..... XAA.
Without thinking about it, i ran it, the phone rebooted, and now im screwed. Flashed the ATT rom with Odin- no change. Factory reset? No change. I messed up BIG.
Finale / TLDR
If you didn't get what just happened there, I used a specific sim card to enable a CSC a menu that uncle sammy does not want you playing with. Proceeded to disable auto CSC changing by SIM, then walked back into a CSC that does not allow me to open said menu. Thus preventing my phone from working fully on ANY NETWORK ever again. With root impossible...
Side notes that failed: Tried fac reset/ tried firmware flash/ tried samkey (no android 11 support)/ tried force change from network side. I hope im not out of options?

****you2dude said:
Obligatory - This is my first post here, please go easy on me.
Click to expand...
Click to collapse
Please check your PM inbox ASAP. Thank you.
-Regards: Badger50

Related

[Q] not registered on network. Galaxy 2

Hi.
I have a big problem with my G2, and have tried many things.
It all started 2 weeks ago. I lost connection to my network.
I tried many things, and ended up giving it to a repair shop, in China, as I was there shortly. They put a new firmware into the phone, and a chinese SIM card worked.
I found an english version of the firmware, and asked them to update with that version, No problem. Everything worked well...but when I arrived back to Denmark, same problem. Not registered on the network.
Now I have tried many things, as Kies could not recognize the firmware version. I burned a 2.35 version into the phone with Odin, and Kies regocnized the version, and now updated to 4.03. Great, but ... I have the same problem. APN settings acc to my network provider. Oister 3 in Denmark.
I really have no idea what to do anymore. And I cant send it in for repair, as the flash counter says 10 times.
Is ther someone here, with a very deep knowledge in Logs etc, as I can send Logs if I am explained what to do.
The short time the phone worked, did I really love it.
And also the chinese SIM can not connect from Denmark.
I would prefer all Logs etc in private email, but if we solve it, I will poste solutions and results here.
Best of regrads
Morten
As for the counter, install and run triangleaway - it can be found in the SGSII section of XDA.
Check that the sim card works (try it on another phone) and borrow another sim card (on the same network). It is amazing how many problems like this are due to a damaged sim card or just not connecting correctly. I had a friend who took the sim card out to flash their Samsung Galaxy 3 and put in the sim card wrongly and couldn't make a call.
Can you copy your contacts to or create one in the sim card?
I doubt that it is a problem with the EFS folder, ie no IMEI number because it was fixed with a china sim, but it may be. Is the IMEI number you get from dialing *#06# 004999010640000 or different from the label under the battery? If so then you have a EFS folder problem. There is an app that may fix it - it requires root - * HERE *
Mobile network
Hi
Thanks for the reply.
A:
I can make, copy, edit etc contact directly at the simcard in the phone, and also copy, edit etc from Kies to the Sim card. And yes. It is the simcard I can do those things at. Double checked that it was somcard and not the phone memory
B:
Double checked the IMEI number again.
Label phone same as *#06#
Further information:
In the first day, I tried many many things to get the phone working.
I searched the internet a lot, and I found some kind of help. Like with IMEI check, I should type a code like *#xxxx# or *xxxx* Stupid as I was, I did not write down the code, and also did not safe the page on the internet, so I have no idea what code I wrote. I am sure it was something regarding Mobile network or CSC.
Reg Triangle away.
My phone is no longer rooted, as I try to have it in original mode, so its ready to send to repair, if needed. Triangleaway needs the phone to be routed, right ?
And will that not require an unsafe kernel ?
After resetting, then I suppose I need to install an original kernel again, and will that not make the counter go to 1 ?
Any other ideas ?
Regards
Morten
can you be little clear....
no network or no data (internet) on your current network
1: do you have a locked phone or unlocked. [carrier locked when new]
2: no network will be no signals at all, no phone call....
3: no data will be you cant browse, send receve emails
4: counter can be fixed easy as now your on ics
Hi,
I got the same problem but different scenario
atifsh said:
can you be little clear....
no network or no data (internet) on your current network
1: do you have a locked phone or unlocked. [carrier locked when new]
2: no network will be no signals at all, no phone call....
3: no data will be you cant browse, send receve emails
4: counter can be fixed easy as now your on ics
Click to expand...
Click to collapse
1. my phone is unlocked(international).
2. signal show full, but no phone call
3. I don't use data, but wifi, and no problem with wifi.
Well, this : not registered on network only happen if phone idle for more than 3hrs, meaning phone just work normally if I don't let it idle for long time. This very frustrating as every morning after wake up I have to switch between airplane mode for phone working again.
Greatly appreciated for your help
Thanks in advance
P/s: currently on Slim rom(cm9). But have tried almost all custom rom found in xda, problem still exist. Even try to change CSC to my current country( Thailand) on stock DL7( included Thailand region), no luck. APN setting also change to default network provider.
Mobile network problem
Hi.
Please see my answers below
1: do you have a locked phone or unlocked. [carrier locked when new]
The phone worked before, and was not locked, but as I send a command to the phone, could I have locked it ? How can I check that ? And it does not give me any warning when I start the phone up.
When I try to make a call, it right away says: Dialling ...Call ended.
2: no network will be no signals at all, no phone call....
No mobile network. It is ONLY a problem with phone calls and reciving calls.
I have plenty of signal
3: no data will be you cant browse, send receve emails
Data is right now not working, WiFi works.
I cant get correct APN settings, as my provider sends this as system configuration to the phone, but cant recive it.
3A: My provided is named 3 Oister, and normally this provider is listed under Network operators. On this phone it is NOT listed. 3 Oister is using network of 3, and only network of 3 is listed.
If I pull down the menu from the topbar on the phone, it actually says 3 Oister, but 3 Oister is not listed under Network Operators.
On my other SG2, 3 Oister is listed in Topbar and under Network Operators.
I bought a new SG2 as well, and we are 2 persons using SG2 here.
4: counter can be fixed easy as now your on ics
How ? Can I do that without rooting and install different firmware ?
I do run ICS ver 4.03, updated by Kies.
In worst case, I will send the phone in for repair, but for sure, needs the counter reset.
Regards
Morten
Put a new firmware in the phone then probably wrong modem and CSC for your location .
Chinese sim unlikely to work 4000 miles away but that is easy to swap sim .
Rom counter for ICS use the search tool for the relevant post .
jje
Mobile network problem
Hi
Please find answers below:
Put a new firmware in the phone then probably wrong modem and CSC for your location .
As my counter says 10, you can see, I have tried this several times, and its also written in my first post.
Please send the code for check of CSC and changing CSC. As I remember it is set to be NEE.
Chinese sim unlikely to work 4000 miles away but that is easy to swap sim .
Chinese SIM works all over the world, as long as Roaming is allowed. And it works in the other phone. Now I have the Denmark SIM in, and same problem. Yes, I did close down the phone, changed SIM and started the phone again. Exactly SAME problem.
Rom counter for ICS use the search tool for the relevant post .
Would be nice to have the info written here instead.
regards
Morten
SG2Denmark said:
Hi
Please find answers below:
Put a new firmware in the phone then probably wrong modem and CSC for your location .
As my counter says 10, you can see, I have tried this several times, and its also written in my first post.
Please send the code for check of CSC and changing CSC. As I remember it is set to be NEE.
Chinese sim unlikely to work 4000 miles away but that is easy to swap sim .
Chinese SIM works all over the world, as long as Roaming is allowed. And it works in the other phone. Now I have the Denmark SIM in, and same problem. Yes, I did close down the phone, changed SIM and started the phone again. Exactly SAME problem.
Sim CSC Modem . Firmware .
Then your answer is hardware fault if above are ruled out as not a problem.
Rom counter for ICS use the search tool for the relevant post .
Would be nice to have the info written here instead.
Sorry i refuse point blank to search for someone else .
Neither do i have the relevant post bookmarked otherwise it would have been posted .
jje
Click to expand...
Click to collapse
SG2Denmark said:
Hi.
Please see my answers below
Regards
Morten
Click to expand...
Click to collapse
try this before you send for repair.......
get this stock for your network
http://www.hotfile.com/dl/149692036/21dfd27/I9100XXLPQ_I9100HTDLP3_HTD.zip.html
1: forget all your idea's do exact as i say
2: remove your sdcard
3: using cwm format system, cache, data, sdcard [system is a must]
4: remove battery / insert back goto download mode
5: flash the ROM you downloded using odin, after restart dont do any restores
6: wait for few minutes now dial this *2767*3855# [important]
dont restore any backups including titanium stuff.
if your phone works now put your sdcard back and do whatever now you want.
---------- Post added at 04:29 PM ---------- Previous post was at 04:24 PM ----------
Saisuay said:
Hi,
I got the same problem but different scenario
1. my phone is unlocked(international).
2. signal show full, but no phone call
3. I don't use data, but wifi, and no problem with wifi.
Well, this : not registered on network only happen if phone idle for more than 3hrs, meaning phone just work normally if I don't let it idle for long time. This very frustrating as every morning after wake up I have to switch between airplane mode for phone working again.
Greatly appreciated for your help
Thanks in advance
P/s: currently on Slim rom(cm9). But have tried almost all custom rom found in xda, problem still exist. Even try to change CSC to my current country( Thailand) on stock DL7( included Thailand region), no luck. APN setting also change to default network provider.
Click to expand...
Click to collapse
next time start your own thread........ this time im helping
do as i posted for the OP but instead of his firmware download your country specific firmware.
seems as a modem issue but can be sim related.
Mobile network problem
Hi again
Followed the guide very detailed
3: using cwm format system, cache, data, sdcard [system is a must]
Wiped all data in System and also Wiped Cache, using:
Root the Samsung Galaxy S2 GT-I9100 running XXLPQ firmware and install ClockworkMod Recovery: CF-Root-SGS2_XX_XEO_LPQ-v5.3-CWM5.tar
Done with Super User Granted.
4: remove battery / insert back goto download mode
Done
5: flash the ROM you downloded using odin, after restart dont do any restores
Flashed with Odin 1.85 in PDA: I9100XXLPQ_I9100HTDLP3_I9100NELP2_HOME.tar.md5
6: wait for few minutes now dial this *2767*3855# [important]
Done. Phone shows Factory Reset in big letters
dont restore any backups including titanium stuff.
Nothing restored.
Booted up, and automatic installed APK's
Same problem.
Only difference is that now the counter says 11 counts
But thanks for a detailed and well told possibility.
As I see it, the problem is connected to the standard the phone connects to the Mobile grid. As I told earlier, I made a stupid thing. I send a command with *#xxxx* in the phone, and I cant remember what code, and I did not save the page on the internet. I really think the problem is about a standard. That the phone is setup to a standard that the 3G net is not using in Denmark.
I can dump logs etc, if anyone can help. But I need to know how.
Regards
Morten
buddy your problem was.... network right? is it working now?
forget counter it will be fixed....later using triangle away with ics bootloader
---------- Post added at 12:06 AM ---------- Previous post was at 12:01 AM ----------
if your phone now works fine with calls send and recieve, manually add the apn to get 3G.
Mobile network problem
Hi
Nope. Did not solve the problem.
Just ran Triangle away, and moved the Firmware: I9100XXLPQ_I9100HTDLP3_I9100NELP2_HOME.tar.md5 to the SD card.
Will try now to install it by CWM
And then I give up. Will try to send it for repair ..... really a shame, as I really would have liked to solve it here
Cheers
Morten
Mobile network problem
Hi Buddy
It finds a lot of Networks, but cant connect to any of them
3 networks with 3G and 4 with 2 G
But not the Mobile network I need to connect to> Oister 3
My other SG2 finds that network without any problem
Cheers
Morten
I had the same problem too. At first I tought it was a rom issue, but it wasn't actually. I turned my phone off and removed and placed back my sim card and it worked.
Mobile network problem
Finished programming original firmware using CMW as source for Odin, after counter was reset to 0, and the pnone status is the same as before, but counter is 0.
So will try to send it in for repair.
Thanks to u all.
And SIM card has been removed several times, even tried with a different.
No luck at all
Cheers, and thanks again
Morten
Did you ever get to the bottom of this?
I've been using my phone in Brazil and now i'm in the UK, it's doing exactly as you describe.
...
How would you go about checking these?
Escy said:
How would you go about checking these?
Click to expand...
Click to collapse
Compare the IMEI that displays when you type *#06# to the IMEI printed on the label under your battery. They should be the same.
For your own sake, do NOT post what the IMEI under the battery actually is, whether it's the same as what's displayed when you dial *#06# or not.
As for checking IMEI blocking by the carrier, that should be obvious. Call your carrier.

[REQ/INFO] KDDI Au Samsung Galaxy S3 LTE [Model: SCL21]

Hello, I'm wondering if there is a guide or any info at all about rooting the KDDI's SGS3 LTE. I saw a bunch of thread for the NTT DoCoMo version but none about the KDDI version. No idea if they use the same hardware or not.
Root success by flashing CWM recovery and sgs3_rooting_supersu_v3.zip. Those tools are specified for Galaxy S3 NTT Docomo (SC-06D) but they also worked for Galaxy S3 Progre from AU KDDI (SCL21).
Just wondering how to unlock this SCL21, if anybody knows, please share.
brong said:
Root success by flashing CWM recovery and sgs3_rooting_supersu_v3.zip. Those tools are specified for Galaxy S3 NTT Docomo (SC-06D) but they also worked for Galaxy S3 Progre from AU KDDI (SCL21).
Just wondering how to unlock this SCL21, if anybody knows, please share.
Click to expand...
Click to collapse
I am also trying to find out a way to root my SCL21 but am having no luck. I have tried many of the "Universal 4.0.4 rooting methods" but have had no luck. Brong, would you mind sharing exactly what you did? The threads here http://forum.xda-developers.com/showthread.php?t=1999024 and here http://forum.xda-developers.com/showthread.php?t=1996940&page=2 warn about using the docomo method because it bricks the phone. Nothing seems to work with our model. Any help would be appriciated. Thanks.
madj1 said:
I am also trying to find out a way to root my SCL21 but am having no luck. I have tried many of the "Universal 4.0.4 rooting methods" but have had no luck. Brong, would you mind sharing exactly what you did? The threads here http://forum.xda-developers.com/showthread.php?t=1999024 and here http://forum.xda-developers.com/showthread.php?t=1996940&page=2 warn about using the docomo method because it bricks the phone. Nothing seems to work with our model. Any help would be appriciated. Thanks.
Click to expand...
Click to collapse
Hi,
First step is flash the CWM recovery via Odin. You can download CWM recovery from here:
https://docs.google.com/folder/d/0B...ZhbUE/edit?docId=0B98X7HyfoaGaNzNvR052dUp0Wmc
Choose this file: SC06D-JB-KBC-CWM-V6.0.1.2_r10-recovery-odin.tar.md5
Flash that file in Odin, choose the PDA in Odin.
I assume you already know how to flash via Odin, if you dont know just ask me again or try to browse other thread.
Step two is run the CWM recovery. Also, I assume you already know to get into recovery mode. Make backup first in recovery mode, you need to insert external SD card and save the backup in the card.
Step three, download this file sgs3_rooting_supersu_v3.zip from here:
https://docs.google.com/folder/d/0B...ZhbUE/edit?docId=0B98X7HyfoaGaR21wdXZweDdYSXM and save it to the external SD card that you used before.
Step four, run the recovery mode again and choose install from SD card, then choose external sd card and choose the file you donwloaded (sgs3_rooting_supersu_v3.zip). After completing all, reboot your phone and you will see the Super User app. Make sure you download root checker in Play store so you can check whether the phone are rooted or not.
Note: If you run the recovery, the screen will reverse. Dont worry, it works eventhough the screen reverses.
Thats all. I am looking the way to unlock this phone, *#197328640# doesnt work. If you have a clue, please let me know.
---------- Post added at 09:42 AM ---------- Previous post was at 09:27 AM ----------
madj1 said:
I am also trying to find out a way to root my SCL21 but am having no luck. I have tried many of the "Universal 4.0.4 rooting methods" but have had no luck. Brong, would you mind sharing exactly what you did? The threads here http://forum.xda-developers.com/showthread.php?t=1999024 and here http://forum.xda-developers.com/showthread.php?t=1996940&page=2 warn about using the docomo method because it bricks the phone. Nothing seems to work with our model. Any help would be appriciated. Thanks.
Click to expand...
Click to collapse
I see a Vietnam website with video on youtube. It shows that this phone has been unlocked.
http://choimobile.vn/threads/unlock-samsung-s3-scl21-au-kddi-nhat-ban.2699/
Any idea how to SIM unlock this phone?, really appreciate any help.
Thanks.
Updated:
I found a new thing regarding this phone. This phone doesn't support non LTE sim card, even you have micro sim (3G) card from AU KDDI. I am trying to find other LTE sim card from other carrier in order to check whether this phone works on that sim or not.
May be somebody can explain why this phone doesn't support non LTE sim. In case of Galaxy s3 LTE from NTT Docomo, it works when I used 3G sim (FOMA). I cut the 3G sim to fit the micro slot.
unlock for this phone
well, my purpose is/was to unlock this phone so I followed the samsung galaxy s3/note unlock method from here: http://forum.xda-developers.com/showthread.php?t=2014982
(I have/had this S3 Progre SCL21, the same phone in this thread)
I can access all the menu and procedure from that thread below, despite this phone being stock Android 4.04!
----------------
"Main Menu > [1] UMTS > [1] Debug Screen > [8] Phone Control > [6] Network Lock > Options [3]Perso SHA256 OFF > (after choosing this option, wait about 30 seconds, then go back one step by pressing the Menu button then select Back, now you are in [6] Network Lock then choose [4] NW Lock NV Data INITIALLIZ ..... wait for a minute then reboot your phone..."
---------------
I put 3G/2G sim card and the phone shows no service. I even put CDMA network sim, no luck. I don't know if this phone is unlocked. I'm wondering if this phone works only with LTE/4g sim. Right now, there's no 4G/LTE in my region
I assume the phone must support all other bands, if properly unlocked.
Now, I'm wandering through the threads and googling.
So far, I'm looking for Jelly Bean 4.1.1 for this phone, which doesn't seem to be available anywhere, even on samfirmware, only stock firmware
Root/flash CWM recovery and try some other unlock method from out there, (after making a backup Stock ROM and sensitive IMEI/NV data of course)
Please keep everyone updated and keep the spirit alive
aabhash said:
well, my purpose is/was to unlock this phone so I followed the samsung galaxy s3/note unlock method from here: http://forum.xda-developers.com/showthread.php?t=2014982
(I have/had this S3 Progre SCL21, the same phone in this thread)
I can access all the menu and procedure from that thread below, despite this phone being stock Android 4.04!
----------------
"Main Menu > [1] UMTS > [1] Debug Screen > [8] Phone Control > [6] Network Lock > Options [3]Perso SHA256 OFF > (after choosing this option, wait about 30 seconds, then go back one step by pressing the Menu button then select Back, now you are in [6] Network Lock then choose [4] NW Lock NV Data INITIALLIZ ..... wait for a minute then reboot your phone..."
---------------
I put 3G/2G sim card and the phone shows no service. I even put CDMA network sim, no luck. I don't know if this phone is unlocked. I'm wondering if this phone works only with LTE/4g sim. Right now, there's no 4G/LTE in my region
I assume the phone must support all other bands, if properly unlocked.
Now, I'm wandering through the threads and googling.
So far, I'm looking for Jelly Bean 4.1.1 for this phone, which doesn't seem to be available anywhere, even on samfirmware, only stock firmware
Root/flash CWM recovery and try some other unlock method from out there, (after making a backup Stock ROM and sensitive IMEI/NV data of course)
Please keep everyone updated and keep the spirit alive
Click to expand...
Click to collapse
So do I, It's hard to unlock
Thanh_GSM said:
So do I, It's hard to unlock
Click to expand...
Click to collapse
As its not a I9300 nothing from this forum is of use .
Suggest a Google search .
jje
Actually this phone, SCL21 can be used with LTE sim card only. I already tried to use non LTE sim card from KDDI AU with no luck.
What I am thinking is actually this phone maybe unlock-able by using the procedure as you mentioned (NW Lock NV Data INITIALLIZ). Since the phone can only be used with LTE sim card, we need to try LTE sim card from other carrier in order to test.
The problem is I dont have other carrier LTE sim card right now, if you have you can try it.
Update: Also I am wondering how to make this phone works with not only LTE/4G but also with 3G/CDMA. I changed the band to automatic, but there is no luck. I think this phone is locked to be used only with LTE/4G sim card. So, if somebody knows how to deal with this matter (make the phone not only accepts LTE/4G sim card, but also 3G/CDMA sim card) please share with us here.
aabhash said:
well, my purpose is/was to unlock this phone so I followed the samsung galaxy s3/note unlock method from here: http://forum.xda-developers.com/showthread.php?t=2014982
(I have/had this S3 Progre SCL21, the same phone in this thread)
I can access all the menu and procedure from that thread below, despite this phone being stock Android 4.04!
----------------
"Main Menu > [1] UMTS > [1] Debug Screen > [8] Phone Control > [6] Network Lock > Options [3]Perso SHA256 OFF > (after choosing this option, wait about 30 seconds, then go back one step by pressing the Menu button then select Back, now you are in [6] Network Lock then choose [4] NW Lock NV Data INITIALLIZ ..... wait for a minute then reboot your phone..."
---------------
I put 3G/2G sim card and the phone shows no service. I even put CDMA network sim, no luck. I don't know if this phone is unlocked. I'm wondering if this phone works only with LTE/4g sim. Right now, there's no 4G/LTE in my region
I assume the phone must support all other bands, if properly unlocked.
Now, I'm wandering through the threads and googling.
So far, I'm looking for Jelly Bean 4.1.1 for this phone, which doesn't seem to be available anywhere, even on samfirmware, only stock firmware
Root/flash CWM recovery and try some other unlock method from out there, (after making a backup Stock ROM and sensitive IMEI/NV data of course)
Please keep everyone updated and keep the spirit alive
Click to expand...
Click to collapse
Hi everyone ^_^
I just got the SCL21 about two weeks ago. I think it's really strange that even on the Japanese forums, there is very little info on rooting this model. From everything I've found, some Japanese sites also both say it's OKAY to root using the Docomo SC-06D recovery and Superuser zip while others say that it's NOT safe to use that same method and it will result in a bricked phone. Really odd, conflicting messages I think.
What is even more strange is the apparent issue with the screen "reversing"? One of the Japanese sites literally said the screen becomes "upside down" after flashing the SC-06D recovery.
Brong, since you got the root to work successfully , could you please elaborate on the "reversing" of the screen? Is the image upside down and only during the recovery mode? Also, do you know if the root caused you to lose the "osaifu Keitai" touch feature?
Thanks a lot to Brong and everyone else helping out with this model phone!!
Sent from my SCL21 using xda app-developers app
Status of SIM access
Hi,
I tested both a 3G micro SIM and a 4G LTE nano SIM from Softbank in this phone and neither card is recognized. The phone acts as though no SIM is inserted at all. (Complete with the "no smoking" symbol (circle with diagonal line through it) instead of a signal meter. I have confirmed that this phone is indeed sold already SIM unlocked from the factory as the MSL is 000000 just like the Verizon Galaxy S III which is also sold without a SIM lock. Additionally, KDDI lists the SCL21 and all other LTE phones they are selling since the debut last winter as being SIM unlocked devices.
According to some Japanese forums, they are suspecting that this phone has some type of hardware lock (hard locked?)... I contacted the only known person who was successful at using a 3rd party SIM on the Vietnamese Viettel GSM network as in a YouTube video. He wouldn't give me any details except that he must have the phone physically in his shop to modify it and it can't be done remotely. This individual also has screenshots showing the stock ROM version running in Vietnamese which makes me believe that he flashed something to the stock ROM to gain SIM detection of 3rd party cards.. Anyone have any ideas about such a hardware locking mechanism?
brong said:
Actually this phone, SCL21 can be used with LTE sim card only. I already tried to use non LTE sim card from KDDI AU with no luck.
What I am thinking is actually this phone maybe unlock-able by using the procedure as you mentioned (NW Lock NV Data INITIALLIZ). Since the phone can only be used with LTE sim card, we need to try LTE sim card from other carrier in order to test.
The problem is I dont have other carrier LTE sim card right now, if you have you can try it.
Update: Also I am wondering how to make this phone works with not only LTE/4G but also with 3G/CDMA. I changed the band to automatic, but there is no luck. I think this phone is locked to be used only with LTE/4G sim card. So, if somebody knows how to deal with this matter (make the phone not only accepts LTE/4G sim card, but also 3G/CDMA sim card) please share with us here.
Click to expand...
Click to collapse
decoding samsung galaxy s3 scl21
hello guys!!!! im a new member here ... i registered on this site for one reason and that is to help those people who have samsung galaxy s3 scl21 ... because i also got 1. I`ve been searching for months on how to unlock this phone so i could use it in my country (Philippines). I was almost loosing my hope because i was really eager to use this phone because of its features, a nice looking phone and its very expensive here in my country.
Few days ago i was browsing the net, i came across with this code *#197328640# that opened the window for me on how i could use the phone with any kind of sim card wether its LTE or 3G ..Im telling you guys the answers are all in that code
pinoyakooo said:
hello guys!!!! im a new member here ... i registered on this site for one reason and that is to help those people who have samsung galaxy s3 scl21 ... because i also got 1. I`ve been searching for months on how to unlock this phone so i could use it in my country (Philippines). I was almost loosing my hope because i was really eager to use this phone because of its features, a nice looking phone and its very expensive here in my country.
Few days ago i was browsing the net, i came across with this code *#197328640# that opened the window for me on how i could use the phone with any kind of sim card wether its LTE or 3G ..Im telling you guys the answers are all in that code
Click to expand...
Click to collapse
can you share step by step?
my phone need to unlock, please help
He's referring to the service mode. In that case, here are the steps to perform an unlock using the service mode (tested to work ONLY on the docomo models SC-06D and SC-03E; NO GUARANTEE IT WILL WORK ON THE SCL21):
1. Enter service mode by dialing the code in the dialer.
2. Press "UMTS".
3. Press "Debug Screen".
4. Press "Phone Control".
5. Press "Network Lock".
6. Press "Perso SHA256 Off".
7. Menu->Back (if the menu button turns up nothing, then just push "back") then wait 30 seconds.
8. Press "NW Lock NV Data Initallliz" then wait around one minute.
9. Reboot the phone and it SHOULD be unlocked. Works great on the SC-06D and SC-03E, no guarantees with the SCL21. And with the SC-03E newer basebands either hid it away or blocked it out so an older one needs to be flashed in before it will show up for unlocking.
Anyone looking to get one should only do so when they've got a trip to Vietnam in their future (to go get it done in a shop there; they still seem to be the only country with shops doing it) or be using au in Japan.
s3 scl21
that`s the first instruction i found when i was browsing the net and tried it but unfortunately it didnt work...... there are still settings in the service menu and all you have to do is click everything that has something to do with the wcdma to gsm..gsm to wcdma or g to wcdma something like that. There`s also a setting that tells somethin like resetting cant remember the exact word and you have to wait for 90 or 60 secs.and restart the phone .and then go back to changing gsm to wcdma .,there`s a setting also that you have to change the frequency .cant remember the step by step guide but because of my eagerness to use the phone i clicked everthing in the service menu and searched every command listed in there.(dont worry it will not brick your phone).After doing all that... this is what happened .. i thought i failed again because the no smoking sign was still there ...so what i did was i clicked the settings and i was so surprised that the menu for mobile network comes out meaning to say that i was able to unlock the settings on the network ..im telling you guys this is what vietnamese unlockers have been doing to unlock this phone that is why they need the phone physically....thats all thanks
And it never prompted for a SIM unlock PIN again? Somebody really needs to go through this carefully and document it; an SCL21 is only 24-25k yen in Japan; I've heard of people paying more to fix broken screens on their international/American S3s.
scl21
as far as i know this particular phone model (s3 scl21) from AU KDDI is not sim locked . The first time i inserted the 3g simcard, it didnt ask for a pin code or anything ...what i could see was the no smoking sign and the simcard icon is there in the apps menu.
it's diffcult to unlock... i can't use in my country... please help
pinoyakooo said:
as far as i know this particular phone model (s3 scl21) from AU KDDI is not sim locked . The first time i inserted the 3g simcard, it didnt ask for a pin code or anything ...what i could see was the no smoking sign and the simcard icon is there in the apps menu.
Click to expand...
Click to collapse
Hi im from philippine also. Please help me on how to unlock samsung Galaxy s3 progre scl21. Thanks in ADVANCE.
Please help
i need stock rom for SCL21 ...
Please help me link
help
pinoyakooo said:
that`s the first instruction i found when i was browsing the net and tried it but unfortunately it didnt work...... there are still settings in the service menu and all you have to do is click everything that has something to do with the wcdma to gsm..gsm to wcdma or g to wcdma something like that. There`s also a setting that tells somethin like resetting cant remember the exact word and you have to wait for 90 or 60 secs.and restart the phone .and then go back to changing gsm to wcdma .,there`s a setting also that you have to change the frequency .cant remember the step by step guide but because of my eagerness to use the phone i clicked everthing in the service menu and searched every command listed in there.(dont worry it will not brick your phone).After doing all that... this is what happened .. i thought i failed again because the no smoking sign was still there ...so what i did was i clicked the settings and i was so surprised that the menu for mobile network comes out meaning to say that i was able to unlock the settings on the network ..im telling you guys this is what vietnamese unlockers have been doing to unlock this phone that is why they need the phone physically....thats all thanks
Click to expand...
Click to collapse
can you list out the step you taken ? i have 2 phones.

ATT SIM on SM-G900T and can't get LTE

I've ruled out everything I could think of, and the best this did was just give me 4G (7MB/sec downloads), and not 4G LTE (used to get 35MB/sec and up).
Things I've tried (with proper wiping/cleaning cache, data, system, dalvik cache before every single flash):
1- Unlock the SM-G900T, and add the IMEI to my account on att
2- check with att that LTE is working
3- get a new SIM card anyway because I'm paranoid!!!
4- Flash NG3 stock on the device, flash it back to NCH
5- Root the device, flash TWRP, and CM based Slim ROM on the device, and com.android. ... error
6- flash back to stock
7- APN is correct, ATT Phone APN and LTE is selected
What I noticed now is that typing *#*#4636#*#* in the dialer does nothing, and I mean nothing! It just sits there.
What am I missing here? (besides the rest of hair I had left on my head)
RESOLVED: It was a brilliant att agent that messed up my data plan while switching IMEI numbers!!! Lesson learned; think outside the box.
Glad you got it resolved.
Please edit your title so people can see easily see that too.
This is actually a common result and one of the most basic trouble shooting steps would be confirming that your SIM card is properly provisioned for LTE.. which usually requires a call to the carrier to check your account settings from the carrier side.
Enjoy your faster phone.
.
I thought you aren't suppose to give att your imei if it's a tmobile device?

NOTE 3 N900P SPRINT LOST APN,IMEI after Factory Reset! Help S.O.S

Hi XDA ,
Am new in the Forum & First of all thanks to all of you for helping the forum and people. I'm having difficulties and I cant seem to find the way to fix this(its been 2 weeks)
My problem is the following: I have a Samsung Galaxy Note 3 details:
software version: N900PVPUBMI3
hardware version N900P.00
Status: network: Digital roaming
mobile network type CDMA-AxRTT
Android 4.4.2
KERNEL:[email protected]#1
A friend bought me this phone and called my carrier METROPCS and made them set up the phone so I could use it. they asked him for imei and sim number. He was able to use the phone and 4GLTE(he was doing this to verify it was unlocked) later on he gave me the phone and I had to do the same procedure he did but first I did a factory data reset.
After it I wasn't able to set it up again.
I've noticed that APN SETTINGS has disappeared from the menu, cant search for networks, when I load IMEI it no longer shows the imei but it shows MEID B0000000 and besides all of this I have a message that says SIM CARD INVALID.(but the sim card works perfectly on my other phone)
I will all my life appreciate if you help me with this matter please!
PS. phone is rooted as far as I know(root check on Google play store said it was)
Sir,
Please wait until mods will move this thread to the device specific forum for more relevant answers.
Stand by
Good luck
XDAGeorge305 said:
Hi XDA ,
Am new in the Forum & First of all thanks to all of you for helping the forum and people. I'm having difficulties and I cant seem to find the way to fix this(its been 2 weeks)
My problem is the following: I have a Samsung Galaxy Note 3 details:
software version: N900PVPUBMI3
hardware version N900P.00
Status: network: Digital roaming
mobile network type CDMA-AxRTT
Android 4.4.2
KERNEL:[email protected]#1
A friend bought me this phone and called my carrier METROPCS and made them set up the phone so I could use it. they asked him for imei and sim number. He was able to use the phone and 4GLTE(he was doing this to verify it was unlocked) later on he gave me the phone and I had to do the same procedure he did but first I did a factory data reset.
After it I wasn't able to set it up again.
I've noticed that APN SETTINGS has disappeared from the menu, cant search for networks, when I load IMEI it no longer shows the imei but it shows MEID B0000000 and besides all of this I have a message that says SIM CARD INVALID.(but the sim card works perfectly on my other phone)
I will all my life appreciate if you help me with this matter please!
PS. phone is rooted as far as I know(root check on Google play store said it was)
Click to expand...
Click to collapse
You might try installing this app it find/gives all the hidden info on your device http://forum.xda-developers.com/not.../app-one-click-hotspot-enabler-menus-t2816159 it will give you APN's MEID AND IMEI . All you have to do is download to your PC, it my download as a zip file. Just use 7zip and rename it to an apk, then copy and paste it to your internal sd card via your charging cable. Then click on apk and install. Enjoy !!!
BTW your MEID is on a label under the battery !!!
jimzweb1 said:
You might try installing this app it find/gives all the hidden info on your device http://forum.xda-developers.com/not.../app-one-click-hotspot-enabler-menus-t2816159 it will give you APN's MEID AND IMEI . All you have to do is download to your PC, it my download as a zip file. Just use 7zip and rename it to an apk, then copy and paste it to your internal sd card via your charging cable. Then click on apk and install. Enjoy !!!
BTW your MEID is on a label under the battery !!!
Click to expand...
Click to collapse
Hi Jim/XDA
I'm still not able to connect to the network. Regarding the IMEI on the back part i know its there however what im saying is that im not able to see my imei through command when i dial *#06#
i as well had this errors today when i woke up:
: LTE:ESM-x EMM-14(ive seen this error when this issue started but it dissapeared and it came back know)
data roaming: you have lost data connectivity because you left your home network with data roaming turned off.
On mobile networks i remember i use to be able to select many(GSM,CDMA,etc) now in network mode i only see 2 options LTE/CDMA,CDMA. Currently LTE/CDMA is selected and if you just look at the network mode option without actually opening it it shows CDMA/LTE/EVDO.
Also when i opened the SCRTN it shows on black screen.
I tried to do some minor changes on Galaxy tools like the SIM UICC UNLOCK all mps,sales,default code on XAS. Factory & keystring ON. MSL/SPC show 222222.
After i did SIM UICC UNLOCK and restarted phone know took away all errors but i see the signal bars faded out and with a little red x on top of it. I've read the manual but im still wondering if there might still be things to set on a particular way that are not specified on it Can you please help me set this up properly?
XDAGeorge305 said:
Hi Jim/XDA
I'm still not able to connect to the network. Regarding the IMEI on the back part i know its there however what im saying is that im not able to see my imei through command when i dial *#06#
i as well had this errors today when i woke up:
: LTE:ESM-x EMM-14(ive seen this error when this issue started but it dissapeared and it came back know)
data roaming: you have lost data connectivity because you left your home network with data roaming turned off.
On mobile networks i remember i use to be able to select many(GSM,CDMA,etc) now in network mode i only see 2 options LTE/CDMA,CDMA. Currently LTE/CDMA is selected and if you just look at the network mode option without actually opening it it shows CDMA/LTE/EVDO.
Also when i opened the SCRTN it shows on black screen.
I tried to do some minor changes on Galaxy tools like the SIM UICC UNLOCK all mps,sales,default code on XAS. Factory & keystring ON. MSL/SPC show 222222.
After i did SIM UICC UNLOCK and restarted phone know took away all errors but i see the signal bars faded out and with a little red x on top of it. I've read the manual but im still wondering if there might still be things to set on a particular way that are not specified on it Can you please help me set this up properly?
Click to expand...
Click to collapse
Is this a Sprint variant? If so, you shouldn't have factory reset the phone. It looked like the phone was previously flashed to MetroPCS and by resetting the phone, it removed all the carrier data.
You will have to reflash the phone to get it working again.
nature954 said:
Is this a Sprint variant? If so, you shouldn't have factory reset the phone. It looked like the phone was previously flashed to MetroPCS and by resetting the phone, it removed all the carrier data.
You will have to reflash the phone to get it working again.
Click to expand...
Click to collapse
Is there a tutorial i could follow here ?
I greatly appreciate your help,
Regards
George
Hey guys, for those who need to edit an APN (Access Point Names), there is a little secret.
Go Settings, and scroll down the list. You will find a search box. Type there Access Piont Names and here it is.
The steps above are neccesary, since APN setting is hidden.

Verizon Voicemail issue on U1 flashed S9+ with Visible carrier

Hi all,
Alright so this is going to be a long post. So I recently flashed my phone to the U1 firmware, I currently have an unrooted Verizon Unlocked Samsung S9+. I wanted to switch phone carriers over to Visible (subsidiary of Verizon), here are the order of events that occurred:
1. Visible's website says that my device in not compatible using their IMEI checker, there is a solution that was found on reddit about flashing the device on the U1 firmware.
2. I flashed the device on the U1 firmware using Odin and the Visible SIM card worked as expected. No issues with the flash
3. Data/Texts etc.. are all working as expected. Except for Voicemail.
When I try to check my Voicemail, it is acting as if it's still on the Verizon Voicemail system. It says "Welcome to the message management system, please enter your mailbox number". No one can leave me a VM either because of this. I tried several different combinations of numbers, including my full 10 digit cell number and last 4, to which it says "XXX is not a valid mailbox number", which would be because my number is no longer active on Verizon, so it's unable to access it. Which makes sense. The Visible Customer Care team tried the following:
1. Provisioning my VM multiple times
2. Take out SIM card, turn phone off for 1 min, insert SIM card again, and toggle airplane mode for 30 seconds
3. Reset network settings
After numerous days of troubleshooting with them, eventually they said it was because my device isn't compatible, ok, I can't argue with that. I have not seen anyone else experiencing this issue that had flashed their phone to U1 firmware.
After trying all of this with them, I eventually factory reset my device, hoping that might do something. That still did not work.
My questions is, is there something I missed with flashing the U1 firmware? Why is it still using Verizon's VM system even though I flashed it to U1? Is there any way to fix this? Any help is greatly appreciated, and please don't hesitate if you need any other information.
bornxawkward said:
Hi all,
Alright so this is going to be a long post. So I recently flashed my phone to the U1 firmware, I currently have an unrooted Verizon Unlocked Samsung S9+. I wanted to switch phone carriers over to Visible (subsidiary of Verizon), here are the order of events that occurred:
1. Visible's website says that my device in not compatible using their IMEI checker, there is a solution that was found on reddit about flashing the device on the U1 firmware.
2. I flashed the device on the U1 firmware using Odin and the Visible SIM card worked as expected. No issues with the flash
3. Data/Texts etc.. are all working as expected. Except for Voicemail.
When I try to check my Voicemail, it is acting as if it's still on the Verizon Voicemail system. It says "Welcome to the message management system, please enter your mailbox number". No one can leave me a VM either because of this. I tried several different combinations of numbers, including my full 10 digit cell number and last 4, to which it says "XXX is not a valid mailbox number", which would be because my number is no longer active on Verizon, so it's unable to access it. Which makes sense. The Visible Customer Care team tried the following:
1. Provisioning my VM multiple times
2. Take out SIM card, turn phone off for 1 min, insert SIM card again, and toggle airplane mode for 30 seconds
3. Reset network settings
After numerous days of troubleshooting with them, eventually they said it was because my device isn't compatible, ok, I can't argue with that. I have not seen anyone else experiencing this issue that had flashed their phone to U1 firmware.
After trying all of this with them, I eventually factory reset my device, hoping that might do something. That still did not work.
My questions is, is there something I missed with flashing the U1 firmware? Why is it still using Verizon's VM system even though I flashed it to U1? Is there any way to fix this? Any help is greatly appreciated, and please don't hesitate if you need any other information.
Click to expand...
Click to collapse
Please check your voice mail settings in your phone app. See my screenshots.
There you should select the correct service provider and the Visible mailbox number.

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