So basically I have a phone (not mine) that says Baseband version: unknown, no IMEI when dialing *#06# and doesn't recognize SIM card at all.
Apparently the phone is running stock KK9 2.3.6. AFAIK it has not been rooted or had custom ROM's installed.
The owner said it recently started dropping from network, and usually didn't reconnect at all. This would indicate a broken baseband chip, since now it doesn't even recognize the card?
Any suggestions what to try?
jusutus said:
So basically I have a phone (not mine) that says Baseband version: unknown, no IMEI when dialing *#06# and doesn't recognize SIM card at all.
Apparently the phone is running stock KK9 2.3.6. AFAIK it has not been rooted or had custom ROM's installed.
The owner said it recently started dropping from network, and usually didn't reconnect at all. This would indicate a broken baseband chip, since now it doesn't even recognize the card?
Any suggestions what to try?
Click to expand...
Click to collapse
Try Flashing Stock ROM, Follow link for instructions.
http://forum.xda-developers.com/showthread.php?t=1424997
Thanks for the quick reply. Unfortunately flashing did not help.
EFS corrupted? Any backup done?
No backup done.
you might wanna try this see if it helps... http://forum.xda-developers.com/showthread.php?t=1264021
Apparently there is a backup of the original EFS file - is it possible to just restore it?
do u meant the original files under /efs/? If that's what you meant, try to follow the steps in the previous SGS2 link. Else if it's an external EFS backup image, then there should be no problem restoring it ie. with EFSProBackup. good luck...
Now it's getting even stranger;
the phone works fine when the battery is removed for about half an hour and SIM card installed after that. I left the phone on my desk without the battery for the night, and now it works just fine. But I know that when I reboot it, it loses the baseband once again.
You mentioned you've flashed a stock rom before, which method did you use, pc odin or cwm/mobile odin? did u do a full wipe?
After restoring ur EFS, do a nand backup if you need to then wipe data/dalvik/cache from recovery mode and reflash via pc odin with a stock rom in ur region...
It look like to me you are having hardware problem. Send it back for replace or repairing..
Sent from my GT-N7000 using XDA App
Hey, everyone, I need some help:
On my SM-920G, I re-installed stock 6.0.1 (last official update before 7.0) and, now, I don't have access to the network (says emergency calls only). IMEI and serial number are both intact. What can I do to regain access to my network? I know it's not a motherboard problem because it happened after flashing stock software. I WOULD REALLY APPRECIATE YOUR HELP.
Thank you,
VinceLupe
vince.lupe said:
Hey, everyone, I need some help:
Thank you,
VinceLupe
Click to expand...
Click to collapse
I would remove and reinstall your SIM card and check your APN settings.
vince.lupe said:
Hey, everyone, I need some help:
On my SM-920G, I re-installed stock 6.0.1 (last official update before 7.0) and, now, I don't have access to the network (says emergency calls only). IMEI and serial number are both intact. What can I do to regain access to my network? I know it's not a motherboard problem because it happened after flashing stock software. I WOULD REALLY APPRECIATE YOUR HELP.
Thank you,
VinceLupe
Click to expand...
Click to collapse
Did you install the right firmware for your region? You should check that or flash right modem file. If all else fails use kies to restore phone to factory or flash a custom rom and check if everything works.
Mufrad said:
Did you install the right firmware for your region? You should check that or flash right modem file. If all else fails use kies to restore phone to factory or flash a custom rom and check if everything works.
Click to expand...
Click to collapse
So, I actually had to have an IMEI change... Long story - but, my question now is: is it possible to return to stock (completely stock) and NOT lose my IMEI number? I've heard some people say, "yes," and O be heard some people say, "no." Is it possible?
vince.lupe said:
So, I actually had to have an IMEI change... Long story - but, my question now is: is it possible to return to stock (completely stock) and NOT lose my IMEI number? I've heard some people say, "yes," and O be heard some people say, "no." Is it possible?
Click to expand...
Click to collapse
I don't think there is any risk of losing IMEI if you flash stock with odin, but if you have root then firstly take an efs backup, just in case, efs is where your IMEI is stored.
Mufrad said:
I don't think there is any risk of losing IMEI if you flash stock with odin, but if you have root then firstly take an efs backup, just in case, efs is where your IMEI is stored.
Click to expand...
Click to collapse
What is the safest way and most effective way to take an EFS backup?
vince.lupe said:
What is the safest way and most effective way to take an EFS backup?
Click to expand...
Click to collapse
If you have root then in the root folder you will find a folder called efs. Just copy it and save it to your SD card or your computer. If you have custom recovery then you can save it from the backup option but I guess that won't help much if you flash stock with odin then it will remove your custom recovery. There are also some apps on the play store but I never used them, I use the first method.
Mufrad said:
If you have root then in the root folder you will find a folder called efs. Just copy it and save it to your SD card or your computer. If you have custom recovery then you can save it from the backup option but I guess that won't help much if you flash stock with odin then it will remove your custom recovery. There are also some apps on the play store but I never used them, I use the first method.
Click to expand...
Click to collapse
Yeah, I'm just on stock, so that won't work - but, now I have another issue:
So, here's what happened... I got my IMEI changed, and all was good. But, then I realized that my phone was rooted. I tried to flash magisk to have magisk installed, and then my phone wouldn't boot up. Afterwards, I flashed stock to restore official device status, but when I did so, I realized that my network wasn't working. My IMEI (clean IMEI) is still showing, but I DO NOT have any access to my network and can't search the web or anything. What could be the issue, and what is the easiest way to fix it?
vince.lupe said:
Yeah, I'm just on stock, so that won't work - but, now I have another issue:
So, here's what happened... I got my IMEI changed, and all was good. But, then I realized that my phone was rooted. I tried to flash magisk to have magisk installed, and then my phone wouldn't boot up. Afterwards, I flashed stock to restore official device status, but when I did so, I realized that my network wasn't working. My IMEI (clean IMEI) is still showing, but I DO NOT have any access to my network and can't search the web or anything. What could be the issue, and what is the easiest way to fix it?
Click to expand...
Click to collapse
Did you flash the correct firmware? The same region as it was when it was working? Flashing a stock rom from a different region sometimes causes this and you need to flash the right one or at least the 'modem' file of the right one to get it working. Or you could use Samsung Kies software to completely recover your phone to its original state when it was bought. Also, What do you mean by saying changed IMEI? Did it not show it correctly or got corrupted and you fixed it? or you changed it completely to a different one from the original?
If you have a good IMEI just call your provider and give them your IMEI and your sim card numbers.
CodeNameRedNeck said:
If you have a good IMEI just call your provider and give them your IMEI and your sim card numbers.
Click to expand...
Click to collapse
CodeNameRedNeck,
So, I have a good IMEI number, but I cannot register the network service. It tells me "Emergency Calls Only" even though it shows a signal in the top right hand corner. Are you saying that I just need to call TIGO (I am in Bolivia) and register my IMEI number as well the SIM card numbers - or, could it be that there is an even deeper issue? Also, which SIM card numbers are you talking about? Thank you, my friend.
Mufrad said:
Did you flash the correct firmware? The same region as it was when it was working? Flashing a stock rom from a different region sometimes causes this and you need to flash the right one or at least the 'modem' file of the right one to get it working. Or you could use Samsung Kies software to completely recover your phone to its original state when it was bought. Also, What do you mean by saying changed IMEI? Did it not show it correctly or got corrupted and you fixed it? or you changed it completely to a different one from the original?
Click to expand...
Click to collapse
Mufrad,
I completely changed the IMEI to a clean one because, apparently, when I traded for the Note 5 (I am in Bolivia, and that's what people do here), the original IMEI was put on the blacklist. So, now I have a completely different IMEI that is clean (unreported), but I do not have any network access at all - furthermore, when I access the menu using *#0011#, it says "IMEI Status: NG" under IMEI Status. I'm not sure if it's a software problem? I have a friend looking at the phone, but I do not have any idea how it's going because he still hasn't been able to fix it.
vince.lupe said:
CodeNameRedNeck,
Thank you, my friend.
Click to expand...
Click to collapse
When my son switched from an iphone to Android we had to call AT&T and give them those numbers before it worked. I had an Xperia phone that I had to do the same with. There are apps that can read your sim card number. It should also be printed on your sim card.
i ha
vince.lupe said:
Mufrad,
I completely changed the IMEI to a clean one because, apparently, when I traded for the Note 5 (I am in Bolivia, and that's what people do here), the original IMEI was put on the blacklist. So, now I have a completely different IMEI that is clean (unreported), but I do not have any network access at all - furthermore, when I access the menu using *#0011#, it says "IMEI Status: NG" under IMEI Status. I'm not sure if it's a software problem? I have a friend looking at the phone, but I do not have any idea how it's going because he still hasn't been able to fix it.
Click to expand...
Click to collapse
plz tell did you fix it and how to fix it???plz help
After flashing 610M (csc: TPA) the phone shows "No sim - No service", even tough in sim card management it's there but no carrier is shown.
I tired:
1. IMEIs were there, but I still tried to restore EFS
2. Tried both sim card slots (the second one can at least receive messages, rather weird thing)
3. I tried to flash CP and CSC trough Odin after installation
4. CSC Changers do not work: errors
5. Tried to install similar ROMS: ResurectionRemix, AospExtended and crDroid... same problem over and over
6. Tried flashing latest Oxygen kernel v.5 - no luck
7. Tried installing without GAPPS - no change
8. Tried flashing latest modem from 8.1 official - nothing
Please, help me good people, I'm out of ideas. Currently using Millennium ROM, everything works. No possibility to buy a new phone, but I miss the simplicity and snappiness of AOSP roms. Thank you.
EDIT1:
I found out that even after flashing CSC in Odin. PhoneInfo app shows that there's not CSC or CSC firmware at all. Attached screenshot.
Have you tried checking if your IMEI numbers are blocked in your country?. Could be blacklisted by an operator.
From which state you are probably problem in restricting the device
TheFixerMED said:
Have you tried checking if your IMEI numbers are blocked in your country?. Could be blacklisted by an operator.
Click to expand...
Click to collapse
I use Millennium ROM (which is non-AOSP) right now, and cell service works perfectly. I can try checking of course (will reply later).
eXrump said:
I use Millennium ROM (which is non-AOSP) right now, and cell service works perfectly. I can try checking of course (will reply later).
Click to expand...
Click to collapse
Weird, I have the same model as you and I've flashed a few AOSP roms (Havoc OS, DotOS) and no problems with my signal.
Well, if it works in TW, then it could be the radio firmware in the AOSP roms that is causing the problem with your signal. Im not sure how you can flash the radio firmware once you are in an AOSP rom, but you could try making a backup of the radio related partitions with the Millenium ROM installed and then try to flash the backups once you flash an AOSP rom.
Make a full backup just in case something goes wrong.
TheFixerMED said:
Weird, I have the same model as you and I've flashed a few AOSP roms (Havoc OS, DotOS) and no problems with my signal.
Well, if it works in TW, then it could be the radio firmware in the AOSP roms that is causing the problem with your signal. Im not sure how you can flash the radio firmware once you are in an AOSP rom, but you could try making a backup of the radio related partitions with the Millenium ROM installed and then try to flash the backups once you flash an AOSP rom.
Make a full backup just in case something goes wrong.
Click to expand...
Click to collapse
Thanks for the reply. I did try to restore EFS and Modem partitions after flashing DotOS, but no luck. I looked at the *#*#4636#*#* menu; and there's a signal (decibels change). It's like it doesn't read SIM cards (I've tried another one with different carrier).
Hello
I need help, some days I tried to install a GSI ROM on my XT1944-3 however it never booted up, after returning back to my previous backup I noticed that the sim isn't recognized by the phone, at this point I tried reinstalling the firmware, even I tried flashing the NON-HLOS from the dual sim variants without success
As you can see in the screenshot that I attached also I lost other numbers
Also I checked the IMEI on blacklist and it's clean
I don't know if someone else faced this before and could solve it, please help me
realthrash said:
Hello
I need help, some days I tried to install a GSI ROM on my XT1944-3 however it never booted up, after returning back to my previous backup I noticed that the sim isn't recognized by the phone, at this point I tried reinstalling the firmware, even I tried flashing the NON-HLOS from the dual sim variants without success
As you can see in the screenshot that I attached also I lost other numbers
Also I checked the IMEI on blacklist and it's clean
I don't know if someone else faced this before and could solve it, please help me
Click to expand...
Click to collapse
If you are still having issues, you probably just need to re-install firmware, then OTA updates and that should restore the sim.
Do you know the IMEI numbers ? Then it's easy with Code *#6813# insert and press ok
-i have also problem with imei i installed
[ROM][10.0.0_r41]LineageOS 17.1 for Moto E5 (nora) + Recovery [64Bit] mmoto e5 work fine imei is restored
I flashed Android 12 custom rom which messed up my baseband and now IMEI is shown unknown (wifi, Bluetooth, mobile network not working)
So i rolled back to my previous stable rom -
PixelExperience_Plus_rosy-11.0-20210313-0535-OFFICIAL.
But still no network, wifi and Bluetooth.
Please help me.
I tried one way as below but not sure if it is correct -
I tried a qcn file downloaded from some site and updated with my original IMEI and tried to restore it using QPST (QPST detects the phone successfully) but it gives some error (phone sent invalid reply)
Please help me with the easiest option.
vvstorm2 said:
I flashed Android 12 custom rom which messed up my baseband and now IMEI is shown unknown (wifi, Bluetooth, mobile network not working)
So i rolled back to my previous stable rom -
PixelExperience_Plus_rosy-11.0-20210313-0535-OFFICIAL.
But still no network, wifi and Bluetooth.
Please help me.
I tried one way as below but not sure if it is correct -
I tried a qcn file downloaded from some site and updated with my original IMEI and tried to restore it using QPST (QPST detects the phone successfully) but it gives some error (phone sent invalid reply)
Please help me with the easiest option.
Click to expand...
Click to collapse
check with this one
XIAOMI MI5 REPAIR IMEI WITHOUT ROOT-WITHOUT Unlock bootloader - GSM-Forum
imei repair succesfully completed without unlock bootloader within 70 hours and without twrp-root..no headache.no waste of time...just 3 minutes
forum.gsmhosting.com