Hello, i have a problem with my phone and imei.
When i reboot i loose imei, i can restore and if i put my sim card after boot, i can use it. If i reboot i go back to 004999....
Any ideas ?
Tried flashs back to 2.3 4.1.2 and current on cyanogen11
I see my nvdata.bin.md5 and the md5.bak are not the same
Is this the source of problem ?
I get my imei back with gs2 repair , it does correspond to my imei. The problem is if i do chmod 755 nv_data.bin, i get a 04999... Imei ...
Could get it back:
Flashed 2.3.5, rooted, used gs2_repair, chowned nv_data.bin -> imei ok
Flashed 4.1.2 imei ok, but no pin request.
Flashed cwm6 installed cm10.1.3 : imei and pincode ok. Call ok.
Flashed cm11: imei goes 04999
Why is this happening in cm11 and not cm10.1.3?
Is it permission on a file in efs ?
I would like to go cm11. Again
Related
I wanted to share with you a problem I had with my phone (I9300):
1. I upgraded the firmware to 4.3 through KIES.
2. Than i downgraded to version to 4.1.2 but did not back up EFS.
3. IMEI + SN were corrupted.
4. After many unsuccessful attempts to recover the IMEI-I had to go to the lab and restore the IMEI + SN with a box (i think it is z3x).
5. IMEI + SN successfully recovered - Netwrok is back. Rom is now 4.1.1
6. I installed version 4.3 via ODIN (without modem). This time you backed up EFS.
7. IMEI + Basband = unknonwn. Of course there was no network.
8. I Replaced EFS from the backup - didn't help.
9. I installed modem.bin MG4 => IMEI + Basband + S/N recovered -network was not - (emergency call only)
10. Zuluman patch didn't worked
11. Downgrade to 4.1.2 caused lost IMEI + SN.
12. I Replaced EFS from the backup- IMEI recovered - but there was no network.
13. ariza patch did not work.
14. I went back to the lab restore the IMEI again.
The conclusion from this long story - after restoring IMEI with a box - it is impossible to upgrade/ replace Rom without losing network again.
every ROM installation will require IMEI repair with a box.
I wanted to get confirmation from the experts who deal with boxes to restore IMEI.
Why so much pain?
You should have flashed the modem from 4.3 when you have downgraded to 4.1.2. That would have been a simple fix.
Your issue is because the original EFS has a security checksum which is not present if your rebuild the IMEI with any box. This security checksum is checked by the modem to confirm if the EFS is genuine. Because of that, you will have to flash a patched modem (which bypasses the EFS checkum) each time you update to a new firmware. You will need this: http://forum.xda-developers.com/showthread.php?t=1918601
Just don't keep trying random things. Do everything step by step. Do you have a backup before you had the IMEI repaired with a box?
avia99 said:
I wanted to share with you a problem I had with my phone (I9300):
1. I upgraded the firmware to 4.3 through KIES.
2. Than i downgraded to version to 4.1.2 but did not back up EFS.
3. IMEI + SN were corrupted.
4. After many unsuccessful attempts to recover the IMEI-I had to go to the lab and restore the IMEI + SN with a box (i think it is z3x).
5. IMEI + SN successfully recovered - Netwrok is back. Rom is now 4.1.1
6. I installed version 4.3 via ODIN (without modem). This time you backed up EFS.
7. IMEI + Basband = unknonwn. Of course there was no network.
8. I Replaced EFS from the backup - didn't help.
9. I installed modem.bin MG4 => IMEI + Basband + S/N recovered -network was not - (emergency call only)
10. Zuluman patch didn't worked
11. Downgrade to 4.1.2 caused lost IMEI + SN.
12. I Replaced EFS from the backup- IMEI recovered - but there was no network.
13. ariza patch did not work.
14. I went back to the lab restore the IMEI again.
The conclusion from this long story - after restoring IMEI with a box - it is impossible to upgrade/ replace Rom without losing network again.
every ROM installation will require IMEI repair with a box.
I wanted to get confirmation from the experts who deal with boxes to restore IMEI.
Click to expand...
Click to collapse
You are posting in the wrong forum .
In the interests of keeping the number of EFS/IMEI threads popping up to a minimum, I'm closing this as there is a full reference thread on what to do located here >>> http://forum.xda-developers.com/showthread.php?t=2393289
it started when i was using offical firmware jelly bean 4.1.2 (I9100XXMS1) rooted and i wanted to flash Cyanogenmod 11
to do so you need CWM recovery 6.0.4.4 at least but i had philz touch cwm based 5.0.x.x. (that kind of cwm i had with root)
so i downloaded CWM recovery 6.0.4.4, copied it to my sd card, entered recovery mod and flashed that CWM recovery 6.0.4.4..
so if im not wrong i flashed different version CWM recovery that i had..
because of it bootloop started.
somehow i managed to restore my phone back to working status. i had a lot of problems like "cant mount E:/ efs" and bootloop all the time but now almost all is ok
almost except IMEI...
i used some SGII_repair app so now i have signal but my IMEI is different than before.. no idea how to restore it.. why i need it? cause i cant enter my sim contatcs
and no i did not backed up my /efs folder before so i cant just copy nv_data.bin, nv_data.bin.md5
no idea what to do now.. i checked every topic about it and still dont know how to fix it
help..
No IMEI & no EFS backup = service centre or local mobile repair shop.
but according to that [GUIDE] Recover your IMEI in 9 steps.
i dont need imei or efs backup.. i did same as on guide and it did not worked.. still IMEI changed to 004999010640000
Exactly my point
well at least phone is working..
i can call and ppl can call me..
but its not my IMEI so its not good..
if they can do it at service centre or local mobile repair shop i cant do it myself?
Hello, I'm new member in here. Today I flashed UltimaROM to my SGS3. Before the flashing I installed Philz touch recovery and saved Nandroid, modem and EFS backups in my PC. After the flashing no IMEI number was shown and I got a message saying " Insert SIM card....". So i tried to restore EFS in custom restore option in philz recovery. Even though it showed restore successful , IMEI number is still unavailable and i couldn't connect to mobile network. I also tried ktools to restore efs but no result. Can someone please help me regarding this issue.
What version firmware did you have before you first flashed? If it was really old then that could be the problem.
Flash a 4.3 stock rom, factory reset them boot and see if your efs is read again.
boomboomer said:
What version firmware did you have before you first flashed? If it was really old then that could be the problem.
Flash a 4.3 stock rom, factory reset them boot and see if your efs is read again.
Click to expand...
Click to collapse
Thanks for the reply. I had 4.1.2. If I flash 4.3 stock ROM can i retrieve my IMEI ?
If you flash a 4.3 stock it will update your efs to v2 and should enable it to be read in all newer firmwares.
After having my phone in a bootloop, i figured that my /efs folder was corrupted as it won't mount, so I tried the fix in a website that used adb with mk2fs command thing (I don't know what it is so I just followed the instructions). and I don't have any backups of the /efs folder. I know my IMEI code from the back of the battery in my phone. I've tried most solutions here including QPST, reverting to stock, and using root explorer to transfer the nv_data (I don't have the .nv_data file with the .). I'm currently running Paranoid Android ROM of android 6.0.1.
Did you try flashing a stock rom to see if that solves the problem?
Flash Modem DDEMG2.zip to get your imei. Then flash Patched_XXUGMK6_modem.zip to get mobile signal
i'v already try write qcn file and success but there is problem when i try to update miui. baseband unkown again n imei is null.
i've backup efs before via twrp. after update i restore it but after restart its unkown again.
note: i got this problem before when i try to flash my phone its too much ads because its distributor type phone. but get error said i flash wrong rom.
how to permanently fix it. thanks
restore efs backup.