My brother owns an AT&T cappy...n after some months of custom rom flashing, he gave me the phone asking me to repair it.
It has stopped reading the sim card, when i checked the imei of the device it gave me a popup of IMEI null/null..also the baseband version is also unknown..
I have many a times flashed the stock rom as every thread about my problem is telling me to do..
also used galaxy s unlock, app for factory unlocking GS devices..but know success
i seriously want to give it a last try before handing it over for a repair outside..
any help would be highly appreciated!!!!!:crying:
Yep, usually using Odin or Heimdall to return to stock firmware should restore the imei. Have u tried to flash to Stock KK4 firmware yet ? The Odin or Heimdall One Clicks for i897ucKK4 can be found here... http://forum.xda-developers.com/showpost.php?p=18370912&postcount=3.
yess!! many a times..but no success
I also wanted to add that :-
during the galaxy s unlock method..i usually get the busybox problem error...though i've installed and verified it many a times
With all the months of flashing that ur brother did...i would think there would be a backup of the efs folder on the sdcard?? Some roms and kernels, when flashed, will create the efs backup for u.
yess!! hopefully dere's an EFS folder.. but i was too bugged up when googling for the method for restoring it..
n also i'm not sure whether the folder is fine or corrupted/messed up..
also i'll be greatful if i'll get to know the easiest step by step process of restoring it.:good:
gautamchawla195 said:
yess!! hopefully dere's an EFS folder.. but i was too bugged up when googling for the method for restoring it..
n also i'm not sure whether the folder is fine or corrupted/messed up..
also i'll be greatful if i'll get to know the easiest step by step process of restoring it.:good:
Click to expand...
Click to collapse
Its as simple as replacing the current one with the backup one.
Sent from my SGH-I747 using xda app-developers app
??
Where to replace...in the root of the system or the SD card,???
busybox error!!!
Can anyone tell me about the BUSYBOX ERROR I'm receiving..??
gautamchawla195 said:
Where to replace...in the root of the system or the SD card,???
Click to expand...
Click to collapse
If you check on the internal sd, you'll see an efs folder. Should probably take a look for yourself before asking those questions
Sent from my SGH-I747 using xda app-developers app
Related
i have been lurking these forums for a while. but made an account for this. i have been flashing roms and what not for about 6 months. as i was fed up with waiting for updates. anyway straight to the question.
my IMEI has changed recently to the 004999010640000 generic one. does that mean is corrupted. what are the risks/problems that i will face if i leave it or try to restore? should i re flash stock and work my way back to custom roms again? or are there other methods that i can do? do these methods restore the original IMEI or a new one. is there a problem with that?
its been like that for about 2 months. i have no backups. it also makes my phone show up twice on marketplace on a desktop. i guess google can see the difference.
i found my old imei . fair sure i shouldn't tell you what it is. is there a way to change it back to that code? without to much hassle? i really dont want to flash back to froyo and start again. i would settle with a factory wipe and some instructions on preventing this from happening again
Please follow instructions at own risk. I am fairly new to all of this but below is what work for me.
If you have a backup, which I did, then you should have an efs folder inside your backup folder. This contains the files you need. (nv_data.bin.md5 & nv_data.bin)
The easiest is to place these to files in the root folder of your internal sd card. Then with something like Root Explorer copy these files & then go to the actual efs folder of your phone and paste them of the existing files in this folder.
Once you have done this delete the nv_data.bak.md5, nv_data.bak and nv_log files.
If you don't have a backup others have said the best is to flash a stock rom which should then restore your original IMEI number. I have not personally done this but it is mentioned a lot.
I don't know how to change the IMEI number any other way.
i was hoping there was an easyer way. i dont have a baack up but i guess i will have to make one when i get it back. ill try it when i get some free time. would any stock rom work or do i have to get a build thats froyo or ginger. would this idea work?
first make back up of files i need. and do a titanium backup and nand
second flash back to stock. check for restored imei
3rd make backup of efs.
4th follow steps to get custom rom working again
5th restore nand backup
6th if imei is lost again use backup.
I just wish there was an easy way to do it other than going back to old firmware
Sent from my GT-I9000 using XDA App
There is if you had made a backup. Unfortunately without a back, which you should always make, you need to take the long route...
I read that the app called Galaxy_S Unlock by Helroz can fix your problem. You need rooted phone.
I have flashed alot of roms and hav alot of efs backups bt all these are just logs. R they useful?
Sent from my GT-I9000 using xda premium
Sys81 said:
I have flashed alot of roms and hav alot of efs backups bt all these are just logs. R they useful?
Sent from my GT-I9000 using xda premium
Click to expand...
Click to collapse
if i had made some im sure i wouldnt be having a hassle right now lol. just need one working one
i think i just did find a backup. from one of the installs it actualy was in the tutorial
going to try it now.
scubadude said:
Please follow instructions at own risk. I am fairly new to all of this but below is what work for me.
If you have a backup, which I did, then you should have an efs folder inside your backup folder. This contains the files you need. (nv_data.bin.md5 & nv_data.bin)
The easiest is to place these to files in the root folder of your internal sd card. Then with something like Root Explorer copy these files & then go to the actual efs folder of your phone and paste them of the existing files in this folder.
Once you have done this delete the nv_data.bak.md5, nv_data.bak and nv_log files.
If you don't have a backup others have said the best is to flash a stock rom which should then restore your original IMEI number. I have not personally done this but it is mentioned a lot.
I don't know how to change the IMEI number any other way.
Click to expand...
Click to collapse
is there anything else i should do? like change permitions? wipe or restart anything????
ended up just flashing samfirmware 2.3.6 stock. then reflashed cm9. i have my imei back. is there an easy way to back it up and restore it around. most things i se involve some terminal or adb. terminal im a bit iffy with and adb i wont be able to do
SturmTyrann said:
ended up just flashing samfirmware 2.3.6 stock. then reflashed cm9. i have my imei back. is there an easy way to back it up and restore it around. most things i se involve some terminal or adb. terminal im a bit iffy with and adb i wont be able to do
Click to expand...
Click to collapse
Nitrality app.
I don't think that app works with ics/cm9. Its unusually fast for. Backup. Almost like it didn't do anything at all. At backup and restore. It says done as soon. As I click backup or restore.
sent from icecreamland where everything looks cyan....
Look at your sdcard insanity/backup
just go to any CWM recovery and in backup and restore option, backup efs or vice-versa !
Guys,
I just updated with the CM10 nightly and I am getting a prompt on bootup that my IMEI is not valid. The IMEI is not blank, and isnt something like 0123456789. Is this a big issue? My calling and texting are working fine, as is my mobile data.
Thanks
The same happens to me. I did an efs backup with root manager but is there any risk? Could someone explain please?
I backed up with cwm before loading cm10 0823. And did an imei restore from Nitrality and it says successful. However I still get an invalid imei on bootup
Sent from my GT-I9000 using xda premium
Updated to cm10 0824. Same issue. Should I do a full cwm restore?
Sent from my GT-I9000 using xda premium
Hey guys common issue if you want it back follow my guide http://forum.xda-developers.com/showthread.php?t=1845104 you might want to titanium backup your apps first then backup your sd
Sent from my GT-I9000 using xda premium
Restored cwm backup from before the issue started. No long have invalid imei. Update to latest cm 10 and invalid imei prompt on startup. However the imei screen under About has an imei number in it still.
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Correct imei though as in the same as the one under the battery?
Sent from my GT-I9000 using xda premium
Nope. Its a different one.
Sent from my GT-I9000 using xda premium
webchaos said:
Nope. Its a different one.
Sent from my GT-I9000 using xda premium
Click to expand...
Click to collapse
OK so its invalid try the link I previously posted if it works or not get back to me
Sent from my GT-I9000 using xda premium
After going back to stock GB, darky resurrection ROM, cm9 and finally cm10. IMEI is back and looking OK. Thanks.
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That's good
Sent from my GT-I9000 using xda premium
Felt a bit of nostalgia going back through the last 2 years of ROMs lol. Thanks again.
Sent from my GT-I9000 using xda premium
webchaos said:
Felt a bit of nostalgia going back through the last 2 years of ROMs lol. Thanks again.
Sent from my GT-I9000 using xda premium
Click to expand...
Click to collapse
Well, in my case, my father's phone lost all efs backups, and nv_data.bin is corrupted (regenerated new one with default generic IMEI).
So, there is nothing to restore from. Reflashing to stock 2.3.6 JW5 firmware didn't help. So you think that I will have to reflash to 2.2.1? How so? I don't understand how older firmware may help restoring correct IMEI...and I don't own JTAG, z3w or SPT boxes...
And for morrons - no, there is no .nv_data.bin, no nv_data.bin.bak, or similiar...only new nv_data.bin(md5) with default, generic IMEI.
Is there any way to restore it? if somebody start to complain that I am thief, I can prove by photos of original phone box, and buying papers I have (my father gave them to me for this purpose).
And no, I don't have to steal anything, I own SGS3, SGS2, SGS, SGT10.1....so stealing another SGS is not an option for me
I just want to restore that phone to it's stock state (and then reflash again with CM10).
Anyone?
Virnik0 said:
I just want to restore that phone to it's stock state (and then reflash again with CM10). Anyone?
Click to expand...
Click to collapse
you can get a rescue kit from My Android Collections and or a solution from My Android Solutions
just flash a JVU and a PIT , should get you back your IMEI or look at My android solutions for details
xsenman said:
you can get a rescue kit from My Android Collections and or a solution from My Android Solutions
just flash a JVU and a PIT , should get you back your IMEI or look at My android solutions for details
Click to expand...
Click to collapse
Why are you so confident, that JVU will regenerate /efs?
as said before, my father was so genius, that he has wiped /efs partition out. I have restored some data, but without proper IMEI, so now I have generic one. I still do have old JVU package somewhere on my NAS, but I do not understand, how old firmware may help, because I am without any /efs backup anywhere... is that firmware customized so it checks and regenerates /efs if its damaged? If so, why is this feature missing from latest full JW5 firmare? Please understand that I know what I am doing, but right now, I have empty hands...without JTAG, z3w or similiar low-level gadget, it is really hard to restore proper /efs on my own...
But thank you for links, I will take a look on them...
More Clues On Fixing IMEI Issue (solved for me)
In my case I upgraded directly from Froyo to CM10.1 and got then same dreaded 'default' invalid/corrupt IMEI=004999010640000
On inspection of the /efs files present it was clear they had been created by the system in response to not being present.
Following advice in this thread and elsewhere I downgraded back to Froyo (XXJPU) and like magic my correct IMEI re-appeared but as soon as I upgraded up to CM9 it changed back to the invalid default of 004999010640000 again.
To cut a long story short I downgraded back to Froyo (XXJPU) again, flashed a recent CWM recovery and booted into the recovery. I then used ADB to get a (root) shell prompt and discovered that the correct /efs data was being mounted from the device /dev/stl3 and at this point I was able to tar up the contents of /efs and safely make a backup. I then upgraded to CM10.1, restored the correct /efs backup and rebooted.
Happy with correct IMEI now
I am not sure what is going on but I am speculating that the big jump from Froyo to CM10.1 bypasses come critical intermediate ROM build where the correct IMEI data is copied from /dev/stl3. CM10.1 assumes this step has taken place and makes no attempt to get the original IMEI data.
... Robert
robertrath said:
In my case I upgraded directly from Froyo to CM10.1 and got then same dreaded 'default' invalid/corrupt IMEI=004999010640000
On inspection of the /efs files present it was clear they had been created by the system in response to not being present.
Following advice in this thread and elsewhere I downgraded back to Froyo (XXJPU) and like magic my correct IMEI re-appeared but as soon as I upgraded up to CM9 it changed back to the invalid default of 004999010640000 again.
To cut a long story short I downgraded back to Froyo (XXJPU) again, flashed a recent CWM recovery and booted into the recovery. I then used ADB to get a (root) shell prompt and discovered that the correct /efs data was being mounted from the device /dev/stl3 and at this point I was able to tar up the contents of /efs and safely make a backup. I then upgraded to CM10.1, restored the correct /efs backup and rebooted.
Happy with correct IMEI now
I am not sure what is going on but I am speculating that the big jump from Froyo to CM10.1 bypasses come critical intermediate ROM build where the correct IMEI data is copied from /dev/stl3. CM10.1 assumes this step has taken place and makes no attempt to get the original IMEI data.
... Robert
Click to expand...
Click to collapse
Exactly that. Same goes with going from Gingerbread to Jelly Bean.
That critical intermediate rom... Is CM9
In other words, to safely preserve your IMEI,
Froyo/GB ---> CM9 ----> CM10/10.1/JB
Sent from my GT-P7510 using Tapatalk HD
So I got this Captivate to unlock for a friend of my dad's.
I followed all the usual steps, it actually worked, but in the process somehow the IMEI got messed up and throws an IMEI error after boot.
I tried all the known guides for fixing the IMEI but nothing worked.
Unfortunately, the original backup of the /efs/ folder is lost
Is there any way to fix this?
Some have been able to recover from the imei problem by flashin back to Stock Firmware and then u could back up the efs folder after the flash. U could try Stock GB 2.3.5 i897ucKK4. Look in my sig link below if u r on a pc or just go to Stock Roms - One Clicks Master Collection stickied thread in the Dev forum...Post #3
Sent from my SGH-I897 using xda premium
4-2ndtwin said:
Some have been able to recover from the imei problem by flashin back to Stock Firmware and then u could back up the efs folder after the flash. U could try Stock GB 2.3.5 i897ucKK4. Look in my sig link below if u r on a pc or just go to Stock Roms - One Clicks Master Collection stickied thread in the Dev forum...Post #3
Sent from my SGH-I897 using xda premium
Click to expand...
Click to collapse
Already tried it twice
I did find a nandroid backup of the EFS, gonna try and work with that somehow.
Edit: Used Nandroid Explorer to extract files, copied over the EFS folder, back to normal!
So lucky I nandroided before I started.
Thanks for the help
hello...after the update from GB to the russian JB ROM i have these problems: insert SIM,my IMEI is missing and baseband unknown...i have followed the exact tutorial..i have had galaxy ace before so i'm not a total stranger to flashing thru odin...i have tried wipe data , wipe cache, factory reset, rooting and deleting dalvik cache and nothing...i reflashed back to GB..worked fine but with the same problems...everything is working fine , wireless and bluetooth...i can boot into recovery mode and downloading mode with no problems...i have read some things about the EFS folder...i didnt do a backup of it...any advice?
If the imei is missing, you destroyed the device. You can try to get it back. There are a few guides. Or you can get it serviced..
Sent from my GT-I9070 using xda premium
Shaaan said:
If the imei is missing, you destroyed the device. You can try to get it back. There are a few guides. Or you can get it serviced..
Sent from my GT-I9070 using xda premium
Click to expand...
Click to collapse
Any links to those guides? thanks
I think you can fix it, do some research, next time backup efs partition
Edit: you downgraded jb to gb?
Sent from my GT-I9070 using xda app-developers app
frapeti said:
I think you can fix it, do some research, next time backup efs partition
Edit: you downgraded jb to gb?
Sent from my GT-I9070 using xda app-developers app
Click to expand...
Click to collapse
yes...but the same problem...everything else is working fine...and another thing..i've read that flashing this jb rom wouldnt increase the binary count but for me it did...got to 7..
Try this http://gsmforum7.blogspot.com.ar/2012/04/samsung-android-repair-efs-imei-repair.html?m=1
Sent from my GT-I9070 using xda app-developers app
A3D said:
yes...but the same problem...everything else is working fine...and another thing..i've read that flashing this jb rom wouldnt increase the binary count but for me it did...got to 7..
Click to expand...
Click to collapse
How did you get back to GB? When I flashed GB over JB mine Recovery was not showing. And it didn't boot. I had only Download mode.
shut_down said:
How did you get back to GB? When I flashed GB over JB mine Recovery was not showing. And it didn't boot. I had only Download mode.
Click to expand...
Click to collapse
I just flashed a 2.3.6 official rom from sammobile..nothing else
shut_down said:
How did you get back to GB? When I flashed GB over JB mine Recovery was not showing. And it didn't boot. I had only Download mode.
Click to expand...
Click to collapse
He messed the device. And i am not quite sure he did that..
Sent from my GT-I9070 using xda premium
I have the same problem. Any solution ?
I think this is the only solution http://www.gsmkhmer.com/index.php?topic=8539.0
But you need octopus box which is a little expensive.
efs backup
frapeti said:
I think you can fix it, do some research, next time backup efs partition
Edit: you downgraded jb to gb?
Sent from my GT-I9070 using xda app-developers app
Click to expand...
Click to collapse
How to backup backup efs partition?
digdarsan said:
How to backup backup efs partition?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1308546
I used this.
only one working solution
You can install jb root it and reset binary counter. Then flash stock gb. Find method in development threads. And den get it serviced. They will replace the motherboard. Hope you have warranty. Else it's 6k for the service. I got the same problem and followed this procedure.
Hi all, Does anyone could fix the imei issue? A friend suddenly appeared no signal and does not recognize the simcard, I checked the IMEI and I get null, I check the baseband and gives me unknown ... You have EFS folder backup previous ... :crying: Please help ...
before install jb root it and reset binary counter. Then flash stock gb
but now cannot install full stok firmware then install stok rom baseband unknown then radio access the root
what is the radio? more than 5 time get access always tiked remember but popup root request
please help
some error is
cannot reparation
powr mgt binary !!y!!!
zakaria9 said:
before install jb root it and reset binary counter. Then flash stock gb
but now cannot install full stok firmware then install stok rom baseband unknown then radio access the root
what is the radio? more than 5 time get access always tiked remember but popup root request
please help
some error is
cannot reparation
powr mgt binary !!y!!!
Click to expand...
Click to collapse
Did you used guide for geting back to GB? It is in top of the post of Q&A or General section of our phone.
Послато са GT-I9070 користећи Тапаталк 4
yes i used guide for geting back to GB
and when use odin binary error is show to me or odin go to red and show field
Hi. Experienced exactly the same problem. In Efs, IMEI folder and modemfs folder is empty. Dnt know if it shud be. Tried tutorials for backing up efs but whts the use if its empty. Pls sumbody help. Is there a hope tht it can b serviced without changing the motherboard.
Sulehri1984 said:
Hi. Experienced exactly the same problem. In Efs, IMEI folder and modemfs folder is empty. Dnt know if it shud be. Tried tutorials for backing up efs but whts the use if its empty. Pls sumbody help. Is there a hope tht it can b serviced without changing the motherboard.
Click to expand...
Click to collapse
It isn't empty and you must backup that it is hidden
I thinks can flash with Odin and restore everything that's my mistake
Sent from my GT-I9070 using Tapatalk
Hi,
I am in India and just purchased an unlocked t mobile note 4 yesterday.
I rooted it and installed Maximum Overdrive ROM. Now EMEI is gone and shows null. I did do a backup of efs using Dr. Ketan EFS backup app but somehow the folder got deleted.
Please suggest if there is any way to recover the emei? Please suggest. THANKS
Isn't the IMEI number located under the battery?
it is there... but since its shows null when I check by *#06# phone is not reading the SIM card... says SIM card is not registered
Its an unlocked T mobile phone
AlkaliV2 said:
Isn't the IMEI number located under the battery?
Click to expand...
Click to collapse
kanu1and said:
it is there... but since its shows null when I check by *#06# phone is not reading the SIM card... says SIM card is not registered
Its an unlocked T mobile phone
Click to expand...
Click to collapse
I'm not comfortable giving you any advice at this point because you're clearly using this phone in an international unlocked way and any advice I could provide could lead to further damage. You can Google Search "Restore IMEI without EFS Backup" and find guides that will help, but if you decide to follow them that will be on you. Sorry I can't be of more assistance.
Thanx for reverting mate... got it fixed... flashed stock kitkat old version and everything is working fine now... :good:
AlkaliV2 said:
I'm not comfortable giving you any advice at this point because you're clearly using this phone in an international unlocked way and any advice I could provide could lead to further damage. You can Google Search "Restore IMEI without EFS Backup" and find guides that will help, but if you decide to follow them that will be on you. Sorry I can't be of more assistance.
Click to expand...
Click to collapse
Glad to hear everything is working fine now, if possible make a brand new EFS backup and store it off the phone. I have tried different apps and by default most store the folder in the phone (which doesn't make any sense) so i had to manually export it. I am currently using EFS Manager(IMEI)-Note4 which lets you backup to the SD and cannot recommend it enough.
did that already mate... this time I have copied complete folder as well using root explorer...
cant take chances
Sent from my SM-N910T using Tapatalk
Note 4 imei null
I have same problem, how did you fix it? Please share, thnx
Flash stock ROM reroot and flash custom... that should fix the issue
Sent from my SM-N920G using Tapatalk