I have GS3 i9300 International version.
My EFS partition has been corrupted.
I already have the backup available i took with EFS backup pro but when i now connect through it it doesn't pick it up even though i have put it in the same directory.
I also tried to backup the existing EFS folder (Which doesn't have anything in it) using Root Explorer in Phone but got an error 'Can't locate Mount Point!"
How can i restore my EFS folder again? Any suggestion will be helpful as i have been trying to read all what is available at XDA.
There is no IMEI and baseband available. I had the stocked firmware when this happened with CF root and Siyak Kernel.
I have checked in CWM Recovery mode.
All partitions are mounted except EFS and i am not able to mount it even in recovery.
So after like 24 hrs, i am finally able to restore everything back to normal .
Since the efs partition was not mounting, i used the following commands to do so manually in terminal
Code:
mke2fs /dev/block/mmcblk0p3
mount -w -t ext4 /dev/block/mmcblk0p3 /efs
The link that helped me realize this was
http://forum.xda-developers.com/showthread.php?t=1857811
After running this command i had signals and Wifi begins working but IMEI was turned to generic.
Then i turned to EFS bakup pro and this time successfully restored my efs folder and getting my origional IMEI back.
So all this taught me that flashing and tinkering with your android phone carries a huge risk and we should all be prepared to face such issues if decided to do so.
But really, what's the fun if we don't .
Following are some issues that i faced during this whole process which i am sharing if anybody else gets in the same situations
- The first thing i did was to flash the stock firmware but this lead to an unrooted phone again
- I used CF root to gain root privileges again but supersu was asking for binary updates before giving root permission to other programs.
- So i downloaded SAMSUNG GALAXY S3 TOOLKIT which is an excellent resource for everything related to rooting, flashing and backing up GS3.
- I rooted with busybox so that EFS backup pro can be used.
- Since my GS3 was not having mobile or wifi signal, this toolkit helped a great deal.
- One small thing that i missed was place my EFS back in a folder named "EFSProBackup" which is to be placed in the same directory as the executable of EFS Pro so that it can recognize it in restoration tab.
I hope this will be helpful if anyone gets stuck in this issue.
Oh glad you resolved it
This shows how important an efs backup is
《spilled from dragon jellybean rom》
Thanks for dropping by bg
I had ruined my i9000 same way and used it for a year with generic imei. I had to copy paste the efs folder everytime i rebooted the phone. Now i am on i9100 but i havent yet backed up my efs, can you guide me how to do it?
Download EFS Pro from here EFS Pro.
Connect your phone with pc via USB and make sure you are not using USB Mass Storage mode.
Start EFS Pro. Obviously, you need to be rooted and have busybox installed for this application to run.
Your phone information will be displayed once it's connected.
Create a backup of your EFS Folder either with a .img or .tar extension.
And keep flashing hassle free .
TSKXDA said:
Download EFS Pro from here EFS Pro.
Connect your phone with pc via USB and make sure you are not using USB Mass Storage mode.
Start EFS Pro. Obviously, you need to be rooted and have busybox installed for this application to run.
Your phone information will be displayed once it's connected.
Create a backup of your EFS Folder either with a .img or .tar extension.
And keep flashing hassle free .
Click to expand...
Click to collapse
Thanks alot man. I'll do this asap.
TSKXDA said:
So after like 24 hrs, i am finally able to restore everything back to normal .
Since the efs partition was not mounting, i used the following commands to do so manually in terminal
Code:
mke2fs /dev/block/mmcblk0p3
mount -w -t ext4 /dev/block/mmcblk0p3 /efs
The link that helped me realize this was
http://forum.xda-developers.com/showthread.php?t=1857811
After running this command i had signals and Wifi begins working but IMEI was turned to generic.
Then i turned to EFS bakup pro and this time successfully restored my efs folder and getting my origional IMEI back.
So all this taught me that flashing and tinkering with your android phone carries a huge risk and we should all be prepared to face such issues if decided to do so.
But really, what's the fun if we don't .
Following are some issues that i faced during this whole process which i am sharing if anybody else gets in the same situations
- The first thing i did was to flash the stock firmware but this lead to an unrooted phone again
- I used CF root to gain root privileges again but supersu was asking for binary updates before giving root permission to other programs.
- So i downloaded SAMSUNG GALAXY S3 TOOLKIT which is an excellent resource for everything related to rooting, flashing and backing up GS3.
- I rooted with busybox so that EFS backup pro can be used.
- Since my GS3 was not having mobile or wifi signal, this toolkit helped a great deal.
- One small thing that i missed was place my EFS back in a folder named "EFSProBackup" which is to be placed in the same directory as the executable of EFS Pro so that it can recognize it in restoration tab.
I hope this will be helpful if anyone gets stuck in this issue.
Click to expand...
Click to collapse
Thanks TSKXDA !
With this i able to mount /efs and sucessfull recover my EMEI !
Thanks again !
Hi there.
I'm with the exact same problem and I can't solve it cause shell says "Permission Denied".
Anything I can do?
RE
Press
su
before entering the commands
Unable to mount efs (same problem) but..
my phone just keep boot looping i tried to flash to stock and every time i wipe and clear cache i says unable to mount efs please help thanks
jhemartija said:
my phone just keep boot looping i tried to flash to stock and every time i wipe and clear cache i says unable to mount efs please help thanks
Click to expand...
Click to collapse
As per identical posts .
Restore your backed up EFS folder ..
If you failed to backup your EFS folder then its a paid for service centre repair .
jje
JJEgan said:
As per identical posts .
Restore your backed up EFS folder ..
If you failed to backup your EFS folder then its a paid for service centre repair .
jje
Click to expand...
Click to collapse
i failed to back up, is there any other way? thanks by the way..
jhemartija said:
i failed to back up, is there any other way? thanks by the way..
Click to expand...
Click to collapse
As per ten thousand plus identical posts no .
jje
Any way if converting a .win backup of my EFS to .img? That's how my EFS got backed up. Also what's this I hear of a generic imei?
Sent from my Nexus 7 using XDA Premium HD app
Just read what the generic imei means. 0049
baseband unknown and imei null
JJEgan said:
As per ten thousand plus identical posts no .
jje[/QUOTE
Dear JJEgan,
i had done a back up of efs via EFS PRO and restored it via EFS PRO and restore was successful but the baseband is still unknown and imei still null.plz help this time i had read everything and done as per instructions and i have a backed up efs in my phone and pc as well
thanks in advance
Click to expand...
Click to collapse
bala_gamer said:
Oh glad you resolved it
This shows how important an efs backup is
《spilled from dragon jellybean rom》
Click to expand...
Click to collapse
Dear bala_gamer,
my name is gaurav.i've a gti9300 and l was on stock 4.1.2,i flashed resurrection remix rom and now i've following issues:-
1) BASEBAND VESRION-UNKNOWN
2)IMEI-UNKNOWN
3)MOBILE NETWORK-UNKNOWN
4)NO CALLS,no network although wifi is running smoothly and rest all is fine with the phone.i flashed back stock 4.1.2 and restored EFS via EFS PRO(which i had earlier taken backup on my pc) but the problem still remains although EFS PRO restore was successful
Further info:-
1)i can locate an EFS folder in the normal file manager which is empty
2)in the root explorer i can see an EFS folder with 18 files in it.
plz help thanks in advance,waiting for a quick response from your side
file manager shows empty because it is not operating with permissions to see it. This is not relevant.
use root explorer only
Just flash MG5 stock ROM from India. If it is still broken, send it for repair. Simple as that
TSKXDA said:
Download EFS Pro from here EFS Pro.
Connect your phone with pc via USB and make sure you are not using USB Mass Storage mode.
Start EFS Pro. Obviously, you need to be rooted and have busybox installed for this application to run.
Your phone information will be displayed once it's connected.
Create a backup of your EFS Folder either with a .img or .tar extension.
And keep flashing hassle free .
Click to expand...
Click to collapse
Dear TSKXDA,
I did exactly the same way and took a back up then flashed a custom rom and lost baseband version and imei, i then flashed back to stock rom restored EFS via EFS pro but the issue still remains.You can see my numerous posts in this forum,plz help me out thanks in advance
Guys i have a karbonn A21 running ICS 4.0.4
I recently flashed its newly compiled CWM recovery 5.0.xx version ( 5.0.2.8 is full name i guess)
When i try to backup my rom.. it backs up my system image... everything but when it comes to backing up of data .. it gets stuck at the last on a file tombstonenocrash01 .. and after some time the phone reboots itself.
When i check my backup folder in clockworkmod there's about 435 MB of backup data in there including recovery.img , boot.img , data.ext4.tar and system.ext4.tar .
I just wanna ask that is the backup of my rom Complete and is it safe to restore that backup without any errors ?
Because it didnt show " backup complete" and rebooted itself automatically while backing up data in the end .
Help me please !!!
I would not recommend to restore this backup. I don't think it is consistent.
Try the following:
Open your file manager and go to /data/tombstones. Delete tombstonenocrash01 and try backup again.
blu2lz said:
I would not recommend to restore this backup. I don't think it is consistent.
Try the following:
Open your file manager and go to /data/tombstones. Delete tombstonenocrash01 and try backup again.
Click to expand...
Click to collapse
Dont you think it might cause a system crash by deleting that file ? Cause its in the android data folder( not on the sdcard) . There are three of those tombstone files. When i extracted my backed up data.ext4.tar i saw those three files are present . And moreover the size of data folder in android directory is same as that of backed up data.ext4.tar .
What should i do ? Restore or not ?
I am scared cause at the moment we dont have any stock rom for the device and if i restore the device and problem crops up then my device is gone. Suggestions please
I wouldn't use that backup ....it will tell you when backup is complete .......and it doesn't look like yours is
Your phone is still working ??? I would download a stock rom or another rom for your phone and copy it to sd card at least you can
use cwm to install it
Hope this helps
Nishchay1 said:
Dont you think it might cause a system crash by deleting that file ? Cause its in the android data folder( not on the sdcard) . There are three of those tombstone files. When i extracted my backed up data.ext4.tar i saw those three files are present . And moreover the size of data folder in android directory is same as that of backed up data.ext4.tar .
What should i do ? Restore or not ?
Click to expand...
Click to collapse
As I wrote, don't restore.
For deciding to delete the tombstone files you might want to know what they are for:
If one of your apps crash (forced close) such a tombstone file is created. It is kind of a system dump to search for the error. Maybe some apps crashed in the past on your phone.
Always remember:
Files in /data are configuration files. If you format/wipe data in CWM recovery and reboot, your system is still okay. Wiping data only leaves you without configuration of the apps you have installed.
So don't panic, deleting tombstone files does no damage to your system.
blu2lz said:
As I wrote, don't restore.
For deciding to delete the tombstone files you might want to know what they are for:
If one of your apps crash (forced close) such a tombstone file is created. It is kind of a system dump to search for the error. Maybe some apps crashed in the past on your phone.
Always remember:
Files in /data are configuration files. If you format/wipe data in CWM recovery and reboot, your system is still okay. Wiping data only leaves you without configuration of the apps you have installed.
So don't panic, deleting tombstone files does no damage to your system.
Click to expand...
Click to collapse
Deleting tombstone files doesnt help. It's still getting stuck at backing up data . Recovery's fault i guess
fredworxz said:
I wouldn't use that backup ....it will tell you when backup is complete .......and it doesn't look like yours is
Your phone is still working ??? I would download a stock rom or another rom for your phone and copy it to sd card at least you can
use cwm to install it
Hope this helps
Click to expand...
Click to collapse
The phone is kinda new so no roms (even stock) are availible right now
Can anybody help in building a new recovery ?
Nishchay1 said:
The phone is kinda new so no roms (even stock) are availible right now
Can anybody help in building a new recovery ?
Click to expand...
Click to collapse
Yeah.. Please Anyone...
I hope if backup is successful i can create a ROM
Please Anyone!! X)
Hi
After losing my imei because of cm10.1 install i tried to restore it through efsbackup pro - it mounted phone ok and started recovering imei from my backup img file, but at the end it said that this was an inproper backup and files dont work proper, and told me NOT to use them, but it auto rebooted before i could do any thing
and now its impossible to to delete/mount efs dir cant install new rom from cwm or odin only stock 4.04 installs ok but same problem persist no matter what if i try flashing newest stock rom 4.1.1 it wont write to nand - pit files from sammy site does the same no writing to nand
I have no imei and unable to format efs dir!! tried rooting it through galaxy 3 toolkit 6.0 and it workng ok i get root and recovery- but from here there no way to mount efs dir same says efsbackup pro when i try to recover/format efs
seems like its missing a pit file..or at least at total format of internal sd, but havent been able to do that until now!
Does anyone have a idea whats going on ? PLS help
Happy new year all
Hey Guys
My i9300 was running stock rom and i decided to flash the illusion rom. but i downloaded and flashed the wrong file. so now my imei number is lost and i get no signal.
I have backup of IMEI from the software EFS pro but it does not restore. the software shows all ok but the IMEI on phone is still unknown.
Also there is a file on my sd card with the backup of efs. maybe a rom previously flashed may have taken the backup. I can try and restore that.
Please help me how to do so. its a tar.gz file
Please help me restore my IMEI number. i have no phone signal and dont want to go to service center because my phone is rooted and its voided warranty.
also i had a nandroid backup i restored it and all my data has been restored but not the IMEI
thanks in advance.
Can't help you to get your IMEI back, but to use https://play.google.com/store/apps/details?id=eu.chainfire.triangleaway , use Odin (or mobileOdin) or unroot it you don't need a IMEI.
Tar files are flashed via Odin .
jje
Actually this may be simpler than expected.
tar.gz can be flashed from odin since now it has an /efs field. That alone may be enough. But please do another backup before trying anything. Really, just copying all the files over to somewhere safe is enough.
But Tar.gz is a compressed file (like zip). Have you tried to check what's inside that tar.gz? I'd decompress it to somewhere and compare it to what's inside your /efs partition on your phone. If it seems the same, i'd do a new /efs backup and try replacing the contents of the /efs with the uncompressed backup.
You may need to do this through adb on recovery mode - once, brain went full retard and wiped my /efs partition by not thinking about what i was doing, phone instantly rebooted on the spot to never normally boot again until fixed (had an awesome weekend trying to figure how to fix it , posted somewhere around here how i did it). Doing it from recovery is just to avoid that. Also, all this is assuming some file on your /efs is just corrupted and your backup is in good shape.
If you're still feeling unsure you can (and should) search for related stuff around here in xda. There is PLENTY of info about lost/corrupted /efs around, happens quite often.
Hey guys,
Thank you very much for your replies
It's quite shocking but an official firmware flash via odin solved the problem.
I guess my imei was just corrupted.
Thanks
Hey guys, I had the same problem, but now I know what went wrong, thanks!
hi guys.
this is my first post. first off thanks to all of you out there who have helped me root 3 different devices and install custom roms on 2 of them.
my third device is my gti9300 phone.
i have rooted and installed twrp but before i install a custom rom i made a back up of my efs files using ktool. after backing up the files i ran the check.
under sdcard/efs.img found section everything checks out 100%
under sdcard/efs.tar.gz found i get the message /!\nv_data.bin NOT FOUND in back up!!!
in my files/device storage the files have been created
could any tell me if the back up i have created will work. dont want to flash a rom until i am sure
the phone works fine and the emei number appears as it should in the phones status menu
hope someone can help
thanks
If in doubt then make other backups, philz recovery custom backup, copy and paste efs contents etc.
You can't have too many backups of your efs, store them on your pc and cloud storage.
IMEI
More than one backup of EFS is best .Save one on your PC .
thanks for the advice guys.