Hello
I have a China Mobile galaxy gs3 i9308, and the imei no. was changed to 0000000000000/null because of rom flashing (I think).
Now I am not registered on the network, so I have to change the imei no. back.
I tried several tutorials online, but seems like they're only for the galaxy s.
I tried the 9 step guide but I can't find the .nv_data file in my efs folder.
Can anyone help me or point me in the right direction?
Thank you
http://www.youtube.com/watch?v=JqLK_2I-SBM
check may be it helps
vegeta1 said:
http://www.youtube.com/watch?v=JqLK_2I-SBM
check may be it helps
Click to expand...
Click to collapse
Thanks for the quick reply. But I followed the written version of the guide and it only works for galaxy s? Because in my nv_data.bin file there's no line 00188008 in hex editor.
this is the link to that thread: http://forum.xda-developers.com/showthread.php?t=881162
The video poster also said it only worked for galaxy s.
Any other ideas?
hey, I have the same problem, SGS3 with wrong imei 0049.... i lose my efs file, someone can help us?
You could try flashing stock rom, heard that this sometimes restores imei, not sure if it works on s3
Also, check if the rom or kernel you flashed created a eggs backup, some do
Sent via TCP/IP
Please help
i have the same problem i cant fix my imei, after flashing the phone it changed to 00499.. it made no backups and no nv_data.bin.bak
If the efs folder havent been backed up, what can i do? I tried changing the nv_data file like some tutorials here explain, but no luck(tried couple of times, it defently not compatible with my galaxy s3), i believe these tutorials are for erlier galaxies.
Please help!
Thank you
Sent from my GT-I9300 using xda app-developers app
Flashing a stock rom works then root again it worked for me using a UK 3 official rom
Sent from my GT-I9300 using xda premium
dazzztom said:
Flashing a stock rom works then root again it worked for me using a UK 3 official rom
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
it shouldn't work for restoring IMEI on the S3
tomniu said:
Hello
I have a China Mobile galaxy gs3 i9308, and the imei no. was changed to 0000000000000/null because of rom flashing (I think).
Now I am not registered on the network, so I have to change the imei no. back.
I tried several tutorials online, but seems like they're only for the galaxy s.
I tried the 9 step guide but I can't find the .nv_data file in my efs folder.
Can anyone help me or point me in the right direction?
Thank you
Click to expand...
Click to collapse
Try this : http://forum.xda-developers.com/showthread.php?t=1801997
Did you back up the efs folder before you flash your device?
I understood that imei numbers were hardwired into the phone. And changing them n having the equipment was illegal. This is what the networks use to bar your phone if it gets stolen.
Sent from my GT-I9300 using xda app-developers app
eddydo said:
Did you back up the efs folder before you flash your device?
Click to expand...
Click to collapse
I don't know about international S3 but here in USA IMEI is not located in EFS folder.
chris170569 said:
I understood that imei numbers were hardwired into the phone. And changing them n having the equipment was illegal. This is what the networks use to bar your phone if it gets stolen.
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
This program was created not to spoof IMEI just to restore if you have problem with it.
How to restore your IMEI number on SGS3 (GT-i9300)
I deleted my IMEI number when flashing roms a few days ago and it was showing as 000000...
I searched everywhere for a recipe of how to restore it and could not find one that would work. The closest that I got was a brilliant post (see link below) describing how to restore the IMEI on a SGS2 i9100. After following this recipe, I was able to restore my IMEI number to 0049 .... which is just as useless as 0000....
It took me a couple of days of research (and HUGE thanks to everybody whose previous research I was able to use) and I finally succeeded in restoring my IMEI using the 9 step process that I describe below. I can't guarantee that it will work and I do not know if it will work on any device besides the SGS3 GT-i9300 (international SGS3), because this is the only device that I have and was able to test the process on.
Links:
Restore IMEI on SGS2: http://forum.xda-developers.com/showthread.php?t=1264021
Download EFS PRO: http://forum.xda-developers.com/showthread.php?t=1308546
Download your original firmware using check fus downloader (http://forum.xda-developers.com/showthread.php?t=1032437&page=18)
You need:
-EFS PRO, a brilliant little program for Windows used to backup / restore the efs folder as well as recover / repair the nv_data*.bin files.
-Windows
-Windows USB drivers
-Rooted SGS3
-Root explorer.apk
-Original phone firmware (actually, you only need the modem.bin file, so once you download your firmware package, you can just extract the modem.bin file).
-Odin or Heimdall
Your phone's IMEI number is stored in the ".nv_data" file in the original shipped efs folder.
Process:
1. make a copy of your EFS folder using root explorer and store it somewhere safe (on your SD card and external SD card should do it).
2. delete the EFS folder from the root of your phone using root explorer.
3. reboot the phone
4. open root explorer and go to the EFS folder (yes, it is still there! The Android OS has generated a new one for us) and delete the following files:
nv_data.bin
nv_data.bin.md5
nv.log
.nv_data.bak
.nv_data.bak.md5
nv_data.bin.bak
and the entire IMEI folder.5.Now go to your backed up EFS folder on your sd card and copy the IMEI folder and the " .nv_data" file (note the dot) to your new EFS folder.
6.Make another copy of the ".nv_data" file in your new EFS folder. Rename one of them to "nv_data.bin" and the other one to "nv_data.bin.bak".
7. Connect your phone to your PC and start up EFS PRO. After your phone has been detected, press the "Repair nv data" button to correct the ownership and permissions.
8. Reboot your phone into recovery mode using the three botton combo and flash the original modem firmware (the modem.bin file that you extracted earlier) to your phone using Odin (use the "phone" button for the upload) or Heimdall (use the "radio" partition for the modem.bin file upload).
9. Reboot the phone normally and your IMEI number will be restored and you will be able to connect to your mobile network again
Good luck and let me know how it goes
Leahcim
do i have to delete the .nv_core.bak and the .nv_core.bak.md5
---------- Post added at 04:10 PM ---------- Previous post was at 04:04 PM ----------
and which nv_data file do i have to copy i got 7 of them
but if this will not fix my phone, can samsung fix it without replacing the motherboard
---------- Post added at 08:36 PM ---------- Previous post was at 08:35 PM ----------
my imei change sudden when i try to unlock my phone with messing the efs folder but i didn't backup it :crying:so now i dont have network
i have managed to follow all your steps and managed to get my IMEI back.
when i pressed *#06# i was able to see a series of numbers so i guess i got it right.
but i am still not connected to any network. please help!!
leahcim_za said:
I deleted my IMEI number when flashing roms a few days ago and it was showing as 000000...
I searched everywhere for a recipe of how to restore it and could not find one that would work. The closest that I got was a brilliant post (see link below) describing how to restore the IMEI on a SGS2 i9100. After following this recipe, I was able to restore my IMEI number to 0049 .... which is just as useless as 0000....
It took me a couple of days of research (and HUGE thanks to everybody whose previous research I was able to use) and I finally succeeded in restoring my IMEI using the 9 step process that I describe below. I can't guarantee that it will work and I do not know if it will work on any device besides the SGS3 GT-i9300 (international SGS3), because this is the only device that I have and was able to test the process on.
Links:
Restore IMEI on SGS2: http://forum.xda-developers.com/showthread.php?t=1264021
Download EFS PRO: http://forum.xda-developers.com/showthread.php?t=1308546
Download your original firmware using check fus downloader (http://forum.xda-developers.com/showthread.php?t=1032437&page=18)
You need:
-EFS PRO, a brilliant little program for Windows used to backup / restore the efs folder as well as recover / repair the nv_data*.bin files.
-Windows
-Windows USB drivers
-Rooted SGS3
-Root explorer.apk
-Original phone firmware (actually, you only need the modem.bin file, so once you download your firmware package, you can just extract the modem.bin file).
-Odin or Heimdall
Your phone's IMEI number is stored in the ".nv_data" file in the original shipped efs folder.
Process:
1. make a copy of your EFS folder using root explorer and store it somewhere safe (on your SD card and external SD card should do it).
2. delete the EFS folder from the root of your phone using root explorer.
3. reboot the phone
4. open root explorer and go to the EFS folder (yes, it is still there! The Android OS has generated a new one for us) and delete the following files:
nv_data.bin
nv_data.bin.md5
nv.log
.nv_data.bak
.nv_data.bak.md5
nv_data.bin.bak
and the entire IMEI folder.5.Now go to your backed up EFS folder on your sd card and copy the IMEI folder and the " .nv_data" file (note the dot) to your new EFS folder.
6.Make another copy of the ".nv_data" file in your new EFS folder. Rename one of them to "nv_data.bin" and the other one to "nv_data.bin.bak".
7. Connect your phone to your PC and start up EFS PRO. After your phone has been detected, press the "Repair nv data" button to correct the ownership and permissions.
8. Reboot your phone into recovery mode using the three botton combo and flash the original modem firmware (the modem.bin file that you extracted earlier) to your phone using Odin (use the "phone" button for the upload) or Heimdall (use the "radio" partition for the modem.bin file upload).
9. Reboot the phone normally and your IMEI number will be restored and you will be able to connect to your mobile network again
Good luck and let me know how it goes
Leahcim
Click to expand...
Click to collapse
IMEI restore on SGS 3 (GT-i9300)
ronaldshi said:
i have managed to follow all your steps and managed to get my IMEI back.
when i pressed *#06# i was able to see a series of numbers so i guess i got it right.
but i am still not connected to any network. please help!!
Click to expand...
Click to collapse
Hi there
You need YOUR IMEI number back (which is not 00000... or 0049...) it is the one under your battery.
If you followed all the steps, then it should have worked.
One extra thing that you can try is if you did not flash your original phone firmware (and you only flashed the original modem.bin file) then do this step first.
And then work through the 9 step process, ignoring the step where you flash your original firmware (because you will have already done it).
Good luck and let me know when it works
---------- Post added at 12:16 PM ---------- Previous post was at 12:10 PM ----------
lobird said:
but if this will not fix my phone, can samsung fix it without replacing the motherboard
---------- Post added at 08:36 PM ---------- Previous post was at 08:35 PM ----------
my imei change sudden when i try to unlock my phone with messing the efs folder but i didn't backup it :crying:so now i dont have network
Click to expand...
Click to collapse
Hi there
Good news is that it will work - even if you did not back up your efs folder before you messed with it!
Give it a try and let me know when it is fixed.
Good luck
Procedure not work!
leahcim_za said:
I deleted my IMEI number when flashing roms a few days ago and it was showing as 000000...
I searched everywhere for a recipe of how to restore it and could not find one that would work. The closest that I got was a brilliant post (see link below) describing how to restore the IMEI on a SGS2 i9100. After following this recipe, I was able to restore my IMEI number to 0049 .... which is just as useless as 0000....
It took me a couple of days of research (and HUGE thanks to everybody whose previous research I was able to use) and I finally succeeded in restoring my IMEI using the 9 step process that I describe below. I can't guarantee that it will work and I do not know if it will work on any device besides the SGS3 GT-i9300 (international SGS3), because this is the only device that I have and was able to test the process on.
Links:
Restore IMEI on SGS2: http://forum.xda-developers.com/showthread.php?t=1264021
Download EFS PRO: http://forum.xda-developers.com/showthread.php?t=1308546
Download your original firmware using check fus downloader (http://forum.xda-developers.com/showthread.php?t=1032437&page=18)
You need:
-EFS PRO, a brilliant little program for Windows used to backup / restore the efs folder as well as recover / repair the nv_data*.bin files.
-Windows
-Windows USB drivers
-Rooted SGS3
-Root explorer.apk
-Original phone firmware (actually, you only need the modem.bin file, so once you download your firmware package, you can just extract the modem.bin file).
-Odin or Heimdall
Your phone's IMEI number is stored in the ".nv_data" file in the original shipped efs folder.
Process:
1. make a copy of your EFS folder using root explorer and store it somewhere safe (on your SD card and external SD card should do it).
2. delete the EFS folder from the root of your phone using root explorer.
3. reboot the phone
4. open root explorer and go to the EFS folder (yes, it is still there! The Android OS has generated a new one for us) and delete the following files:
nv_data.bin
nv_data.bin.md5
nv.log
.nv_data.bak
.nv_data.bak.md5
nv_data.bin.bak
and the entire IMEI folder.5.Now go to your backed up EFS folder on your sd card and copy the IMEI folder and the " .nv_data" file (note the dot) to your new EFS folder.
6.Make another copy of the ".nv_data" file in your new EFS folder. Rename one of them to "nv_data.bin" and the other one to "nv_data.bin.bak".
7. Connect your phone to your PC and start up EFS PRO. After your phone has been detected, press the "Repair nv data" button to correct the ownership and permissions.
8. Reboot your phone into recovery mode using the three botton combo and flash the original modem firmware (the modem.bin file that you extracted earlier) to your phone using Odin (use the "phone" button for the upload) or Heimdall (use the "radio" partition for the modem.bin file upload).
9. Reboot the phone normally and your IMEI number will be restored and you will be able to connect to your mobile network again
Good luck and let me know how it goes
Leahcim
Click to expand...
Click to collapse
Thanks a lot for the advice regarding SG3 IMEI restoring, but this prosedure doesn't change IMEI !!!
EFS PRO actions was Ok.
Can you help me? Pleeeeeease.
P.S. I know original IMEI numbers
in step 2 you say efs but delete the folder, but when I do that I reboot and I get a message telling me the whole time the camera is null and void wi fi all the options, it is this?
pd. sorry for my English (I'm using google translate)
leahcim_za said:
Hi there
You need YOUR IMEI number back (which is not 00000... or 0049...) it is the one under your battery.
If you followed all the steps, then it should have worked.
One extra thing that you can try is if you did not flash your original phone firmware (and you only flashed the original modem.bin file) then do this step first.
And then work through the 9 step process, ignoring the step where you flash your original firmware (because you will have already done it).
Good luck and let me know when it works
Click to expand...
Click to collapse
I do not remember my previous version, only the update when I asked him to put kies, I can use this firmware?
I9300BVBLG2_I9300TMUBLG1_TMU
I just do not see the ". nv_data"
I have corrupted efs folder on i9100,
I now have the imie set at default 0049xx , now
When I copy back the original nv_data.bin to the efs folder ,
the imie is still 0049xx when I reboot the phone .
I have deleted the .bak files and both .md5.
I only have the nv.data file backed up .
Do I need to Chang permissions on the file before I reboot .
Any help appreciated .
Fuctifano said:
I have corrupted efs folder on i9100,
I now have the imie set at default 0049xx , now
When I copy back the original nv_data.bin to the efs folder ,
the imie is still 0049xx when I reboot the phone .
I have deleted the .bak files and both .md5.
I only have the nv.data file backed up .
Do I need to Chang permissions on the file before I reboot .
Any help appreciated .
Click to expand...
Click to collapse
Use this... Practically u need to give permissions rw-r-r (i think) but use this tool as it formats EFS partition and rebuilds it using ur backed up EFS folder..
I'll try that thanks , root explorer lets me set permissions to w/r when I copy the new bin file over .
It just seams to over write to default . How can I get the system to generate the md5 for my bin file
Anyone help me fix this if I only have the original bin file ?
I made the silly mistake of not doing a complete backup of my EFS folder before flashing my cellphone with a custom ROM:crying:
and now my EFS folder is empty;if I delete it with ES File Manager (my phone is rooted) as soon as I reboot the phone, the EFS folder is created again,
but it is empty.I'm able to make and receive phone calls,send and receive sms,use wireless,bluetooth and gps,but if I dial *#06# my IMEI is blank.
With Galaxy Tool Box (the Rom installed it) --> Device Information I can see my correct IMEI (same number write in the battery slot).
I have a CWM backup and these files are in the backup folder: .android_secure.vfat.tar / boot.img / cache.rfs.tar / data.rfs.tar / nandroid.md5 / system.rfs.tar
Could one of these files help me restore my EFS folder (with all the files ofc)? Even the Product code is gone (KIES doesn't recognize the device)
I've got the the original stock firmware for my italian GT-S 5830i ,and I've tried to flash it with ODIN (PDA/MODEM/CSC) but that was pointless.
Thanks in advance for your time and consideration.
Have a nice day.
[email protected] said:
I made the silly mistake of not doing a complete backup of my EFS folder before flashing my cellphone with a custom ROM:crying:
and now my EFS folder is empty;if I delete it with ES File Manager (my phone is rooted) as soon as I reboot the phone, the EFS folder is created again,
but it is empty.I'm able to make and receive phone calls,send and receive sms,use wireless,bluetooth and gps,but if I dial *#06# my IMEI is blank.
With Galaxy Tool Box (the Rom installed it) --> Device Information I can see my correct IMEI (same number write in the battery slot).
I have a CWM backup and these files are in the backup folder: .android_secure.vfat.tar / boot.img / cache.rfs.tar / data.rfs.tar / nandroid.md5 / system.rfs.tar
Could one of these files help me restore my EFS folder (with all the files ofc)? Even the Product code is gone (KIES doesn't recognize the device)
I've got the the original stock firmware for my italian GT-S 5830i ,and I've tried to flash it with ODIN (PDA/MODEM/CSC) but that was pointless.
Thanks in advance for your time and consideration.
Have a nice day.
Click to expand...
Click to collapse
The EFS Partition doesn't contain any files, it only contains raw HEX Data so it is normal for it to be empty. I recommend you install a custom kernel then flash the stock ROM via Odin as this has worked for me in the past.
Hey guys,
I would like to know more about the nv_data.bin file in sumsung android phones (located in the EFS partition).
All I have found in the web is that the file contains the IMEI and you could "destroy" this file while you fail in root progress.
When this file should be changed and when it used ?
Thanks alot !