I recently updated my ROM to Cyanogens CM10 Nightly and am having issues with the IMEI not being valid.
Yes, I have attempted the use of copying and pasting it from the backup.
There is no efs folder in the backup
The only efs folder is in the root directory.
Does anyone know how to resolve this issue? Thanks
I also did look for the answer before posting this. Have not found it on here.
This is why it is advisable to copy your EFS folder to a safe place before you start flashing ROMs. I have no idea if your IMEI is recoverable, unfortunately.
See this thread... http://forum.xda-developers.com/showthread.php?p=30711193
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You can always try flashing back to stock ! And always take the sim card out before you flash and of course back up efs folder!
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Related
Hyperthetically if someone (not me) deleted all the root files using root explorer, would they all be replaced after a stock rom was installed using odin or is the only way to get root files like efs back a nand backup?
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I am not at all sure, but from what I can see online it seems that the /efs folder (and thus the holy IMEI number) are NOT restored by flashing roms or reloading general backups. That is likely the reason why it is strongly suggested to take a copy of your efs folder and save it somewhere secure before doing ANYTHING copacetic to your phone.
You (oh sorry, I mean your "friend") may be better off flashing to stock and then searching here for ways to change/set your IMEI number. Perhaps that will work.
Good luck.
Ok what I'm trying to ask is if I start playing with mods like root file mods that edit system files like the battery icon mod. Will a flash to stock rom on odin restore it back to normal or will the system files be forever changed? I think that is abit clearer.
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Anyone?
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I would keep a back of all those files just to be safe
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I agree . But I'm more interested in the actual answer. Is the bootloader even stored in the root. And would it even be possible to restore everything just by pasting a backup of those files back?
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Pro's?
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You can't **** up your bootloader with root explorer. You can destroy your efs though. As long as this is backed up everything else is restorable.
Thanks. So how would one go about backing up their boot loader or is that a mute point since the phone won't boot without one anyway? And if your bootloader did get screwed say from a bad flash and you couldn't get into download mode is that whats considered a hard brick and would a jig allow you to fix this?
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How i can fix when my phone is no emei?
There's a tutorial in the forums to restore your IMEI if you made a backup of your efs folder. You can also try going back to stock (I know its inconvenient, but worked for me when my imei messed up and started with 004).
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i tried re-stocking my SGT P1000 from aokp build 40# via odin n it show fail bt somehow manage to boot.bt now my tab is not showing network n IMEI .
i tried recovering from EFS folder but thats empty too.
i dont have EFS backup only nandroid backup of stock rom.
Plz help
Efs folder is visible.
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how do you restock? Overcome's GB-stock-safe?
What ROM are you booting into now?
I restock via Odin.use gingerbread stock,pit file and then dbdata.Odin show fail but boot on gingerbread when I again tried flashing.it happen to me before too as once by mistake i restore stock nandroid over cm9.
so currently on gingerbread.right now downloading over come gb stock safe v5 ll try flashing it.
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baseband is unknown.i flash aokp again that may be that correct it bt didnt works.can i install gb stock safe directly over aokp 40# or again hv to restock.
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you have to restock when coming from MTD rom like AOKP or CM9.
even for nadroid restore you have to restock then restore.
when restock, it is best using GB-stock-safe.
use its pit file and it also has modem files.
Edit, are you referring to GB-stock-safe when you said "overcome rom"?
Overcome ROM is a different thing.
yes gb stock safe i was about to correct that.i install bml my mistake due to rom naming confusion
now ll gb stock safe help in getting baseband?
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honestly I don't know about efs.
I read of people losing /efs due to bad kernel, but got it back with good flash.
I don't get it because I thought /efs once is deleted it is gone unless there is backup.
Anyway, you have checked your sdcard, no backup?
and GB-stock-safe can be flashed coming from aokp.
that is how we restock.
i didnt create any backup bt there is auto back up one with name efs and another with efs-294 .
and where is modem file for gb stock safe.it is not in zip file i download.only rom,pit file and overcome kernel.
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Gb safe stock works.got my imei back.i think problem was related to modem file.thanks a ton man.
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priyana said:
honestly I don't know about efs.
I read of people losing /efs due to bad kernel, but got it back with good flash.
I don't get it because I thought /efs once is deleted it is gone unless there is backup.
Anyway, you have checked your sdcard, no backup?
and GB-stock-safe can be flashed coming from aokp.
that is how we restock.
Click to expand...
Click to collapse
even if you delete efs folder, android will generate a new one with a different imei, its a real problem because he will find a hard time with his apps (paid ones) i tried the new efs once and i can't use my Samsung paid apps anymore, when restored my old efs, it works again.
If I helped you, please press the thanks button
efs.img
Hello.i tryed to backup efs partition on tab p1000,and got the 2gb efs.img file.As i know now,its too big.Is it possible that image contains /efs folder in it?And if yes,how can i restore?
Restocking didn`t bring imei back.
What did you use to restock?
i haven't heard of a 2gb /efs backup before. sounds like you should restock using a proven method like Overcome. Maybe you should try this out:
http://forum.xda-developers.com/showthread.php?t=1881981
like many, i also lost imei once, and this rom brought it back.
filteringfields said:
What did you use to restock?
i haven't heard of a 2gb /efs backup before. sounds like you should restock using a proven method like Overcome. Maybe you should try this out:
http://forum.xda-developers.com/showthread.php?t=1881981
like many, i also lost imei once, and this rom brought it back.
Click to expand...
Click to collapse
I`m not sure,but i read this thread too.Will try again anyway,thanks.
Gb safe stock works.got my imei back.i think problem was related to modem file.thanks a ton man.
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Click to expand...
Click to collapse
Could you show me step by step to get IMEI back, i am facing the same problem. Thanks a lot
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It is exactly two post above you. Or look at my signature.
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I got IMEI back. My experience: PC on offline mode(no wifi, no LAN), end all Kies process then downloading mode, turn on Odin blah...blah...
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So I'm going to assume that my IMEI is gone as the one that is listed under 'about phone>status' is different than the one printed on my phones manufacturer box. The one listed appears to start with 0049. I have verified the APN settings on my samsung galaxy s captivate are correct per my carrier - Straight Talk. Any help is appreciated, thanks.
I currently have flashed,
Kernel
Devil3-1.0.0-rc3-cappy-cfs-bln-cmc
ROM
CM10 JellyBean V2 with gapps + su
Try restoring your IMEI backup folder located in your Internal SD and see if you get service again.
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Nick0703 said:
Try restoring your IMEI backup folder located in your Internal SD and see if you get service again.
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Click to expand...
Click to collapse
Sorry to ask but could you provide me with detailed steps on how to do this? I've already flashed back to an earlier version of android 2.x using odin3 one click but I'd like to know for future reference.
Check out this post. I've helped someone before with the same problem. http://forum.xda-developers.com/showpost.php?p=28936532&postcount=3
If it's still not clear, just ask me I'll make another one in detailed for you!
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Nick0703 said:
Check out this post. I've helped someone before with the same problem. http://forum.xda-developers.com/showpost.php?p=28936532&postcount=3
If it's still not clear, just ask me I'll make another one in detailed for you!
Sent from my SGH-I897 using xda app-developers app
Click to expand...
Click to collapse
Thanks for the reply, I figured that was a possible solution but wasn't sure about copying entire folder. I had read posts about copying just the .nz_data.bin. I appreciate your help.
hmmm. Still seem to be having some trouble. I had flashed with odin one click to gingerbread 2.3.5 and made a copy of the efs folder to the internal storage using root browser. I've moved the nv_data.bin & imei folder & nv_data.bin.md5 over and now it's reporting the IMEI as unknown. I've played around with permissions setting the user:group to radio. and also tried 1001:radio w/ rwx---. I also tried clearing the dalvik cache afterwards in hopes that it would rebuild stuff. Not really sure what I am missing, anyways I'll probably flash to gingerbread again and make another backup to the internal storage with file manager in CWM, I'll then reflash to CM10 JellyBean and try to move again. Let me know if I am missing something.
Also do you have any idea why my efs partition is getting corrupt / overwritten when I am flashing? I've been following instructions in the thread for CM10 JellyBean 4.1.1 and It seems the 3 or 4 times I've flashed this devilkernel rc3 and then the cm10 jellybean v2 + apps + su package that my efs gets messed up. Thanks again.
Hey guys. I flashed a JB 4.2.2 ROM for the GSM tabs and all went well. Except when I flashed the T-Mobile modems JJB and JL3 it comes up as unknown baseband and I get absoultely no signal when I insert my SIM card. Am I missing something?
Perhaps your IMEI is bad due to corrupted EFS. Find the backup in sd card, and copy and paste back to /efs
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I managed to flash another rom and it works fine now
hey! can you post here what kind of ROM have you flashed? I'm currently running the SHW-M180S UC27 ROM (from original Korean version ROM) which is fine but I can't get EDGE! only GPRS and UMTS
quickbird144 said:
I managed to flash another rom and it works fine now
Click to expand...
Click to collapse
same problem here,
qucikbird can you tell me rom name so that I can get rid off this porblem?
mine is 4.2.2 cyongemod
baseband was "i9000ugjk3"
101-20131006-nightly p1
Only these information I have,
any help , specially Priyana
thanks
Is your IMEI OK?
If so, just unzip the modem zip, and copy the modem.bin to /radio
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priyana said:
Is your IMEI OK?
If so, just unzip the modem zip, and copy the modem.bin to /radio
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Click to expand...
Click to collapse
Sir thanks for quick support and reply,
There is no imei as well, tab came to me for no google store in it, after flashing "cm-9.0.0-p1.zip" from this link http://download.cyanogenmod.org/?device=p1
if I try to flash higher version than cm-9.0.0-p1.zip , error 7 occurs in cwm
its full details are as follow
Model "SGH-T894(converted to cyngonmod P1000)
4.2.2
Base band unkown( before flashing it was i9000ugjk3)
Kernel version: 3.0.86-g76a9412 [email protected]#1 Sun Oct 6 10:23DT2013
CPU ARMv7 Process rev 2 (v71)
cynogenmod version 10.1-20131006-Nightly P1
build number: cm_p1 -userdebug 4.2.2 JDQ39E ENG.JENKINS.20131006. 100422 TEST-KEYS
I hope this will help to solve my problem , you can't imagine my frustration,
Please suggest
thanks
Find in your internal or external sd card a backup folder.
See if there is an efs folder.
Copy the entire content to /efs replacing what you have in there. Reboot. See if IMEI reappear.
If not, you need to try to flash stock rom using odin.
Use overcome method found in my signature.
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priyana said:
Find in your internal or external sd card a backup folder.
See if there is an efs folder.
Copy the entire content to /efs replacing what you have in there. Reboot. See if IMEI reappear.
If not, you need to try to flash stock rom using odin.
Use overcome method found in my signature.
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Click to expand...
Click to collapse
I made backup in cwm but there is no efs folder, I also restore from that backup but no luck
these are files in backup folder
boot.img
cahce.ext4.tar
cache.ext4.tar.a
data.ext4.tar
data.ext4.tar/a
nandroid.md5
recovery.img
recovery.log
system.yaffs2.img
stock rom for which model? SGH T849 or P1000
priyana said:
Find in your internal or external sd card a backup folder.
See if there is an efs folder.
Copy the entire content to /efs replacing what you have in there. Reboot. See if IMEI reappear.
If not, you need to try to flash stock rom using odin.
Use overcome method found in my signature.
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Click to expand...
Click to collapse
thanks Priyana Problem solved by your files and guide, Its now on gingerbread, baseband and imei have been restored,
no words to say thanks for your help
may you have success in your life one after the other,
thanks again and best regards,:good:
You are welcome.
You may want to try again with cm10.1 or any higher, as long as you know how to restock.
About efs backup, it isn't done by cwm.
When you flash cm9 or 10, it backs up your /efs to a safe place.
Usually in /sdcard/backup/
Or in /emmc/backup.
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