Hello,
My phone's IMEI number changed automatically and unable to make calls. I have followed some guide to retore IMEI by making changing to efs folder. Now my phone is stuck at samsung logo. Giving the following errors: failed to mount efs and DM verity failed. how can i restore that backup efs folder. Thank You
amanxarwar said:
Hello,
My phone's IMEI number changed automatically and unable to make calls. I have followed some guide to retore IMEI by making changing to efs folder. Now my phone is stuck at samsung logo. Giving the following errors: failed to mount efs and DM verity failed. how can i restore that backup efs folder. Thank You
Click to expand...
Click to collapse
You should never make any changes to efs folder. Looks now like your efs is corrupted. How did you backup efs? If it was through twrp then you can restore it through twrp.
callumbr1 said:
You should never make any changes to efs folder. Looks now like your efs is corrupted. How did you backup efs? If it was through twrp then you can restore it through twrp.
Click to expand...
Click to collapse
I have recovered my phone from bootloop by following this method> https://forum.xda-developers.com/galaxy-s3/help/guide-recover-phone-formated-efs-t2197515
I made backup of EFS through root explorer file manager. I just copied the efs folder on my pc. i have fixed drk and failed to mount /efs errors by recreating efs partition and replacing files from backup folder. But my main imei problem still not fixed. It shows 35000000000006 fake imei and no network at all. Emergency call only. How can i fix this imei issue.
Related
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
Following this trhead http://forum.xda-developers.com/showthread.php?t=1804123 and when i dial *#7284# appear this
do not appears "Qualcomm USB Settings" what i need to do!
Unless your phone it's Qualcomm based (which means you're in the wrong forum), it won't work.
Do you made an efs backup before losing your imei ?
if not, send me a recent efs folder backup + efs partition img (with efs pro) and I'll try to recover your imei.
spocky12 said:
Unless your phone it's Qualcomm based (which means you're in the wrong forum), it won't work.
Do you made an efs backup before losing your imei ?
if not, send me a recent efs folder backup + efs partition img (with efs pro) and I'll try to recover your imei.
Click to expand...
Click to collapse
Didn't made it, i'll send to you then
spocky12 said:
Unless your phone it's Qualcomm based (which means you're in the wrong forum), it won't work.
Do you made an efs backup before losing your imei ?
if not, send me a recent efs folder backup + efs partition img (with efs pro) and I'll try to recover your imei.
Click to expand...
Click to collapse
How do i send it to you?
Upload it to mediafire or send it by email to my name at Google dot com
I´ve rooted my s3 and now is my IMEI 004999010640000/01 and after that it is not possible to make calls,. I´ve read a lot of pages about restoring IMEI by EFS back up I have, but nothing still work. Can somebody help me??
EFS back up was created after rooting so maybe that the reason, why I cannot restore (restoring works but with false data of IMEI, is it write??) So have can I put my IMEI back without back up??
Thank you
Factory reset flash stock rom that fails it is a service centre repair.
The efs backup is in tar or tar.gz format ? If yes just unpack it using 7zip and copy paste efs folder contents from backup to phone efs folder ....
sent from the state where marijuana is NOT illegal !
You only rooted? Is that the FULL story? How did you root?
I lost my IMEI number.If I restored an old backup that contains an efs backup,would that work ? Sorry if I'm missing something,never encountered such a problem.
[bump]
I'm sorry for this I know this is against the rules but this is a serious a serious issue.I couldn't make/receive calls for the last 3 days.I have got the efs backup folder I'm just not sure how do I restore it ??
Madarox said:
[bump]
I'm sorry for this I know this is against the rules but this is a serious a serious issue.I couldn't make/receive calls for the last 3 days.I have got the efs backup folder I'm just not sure how do I restore it ??
Click to expand...
Click to collapse
Restore with what program you make the EFS backup...
SAMPPLE said:
Restore with what program you make the EFS backup...
Click to expand...
Click to collapse
It was made with TWRP recovery and I can't find an option called restore efs...
Madarox said:
It was made with TWRP recovery and I can't find an option called restore efs...
Click to expand...
Click to collapse
First what version of TWRP you have ?
Second read this little thing from droidviews : http://www.droidviews.com/how-to-backup-and-restore-efs-data-on-nexus-5/
" 1.Boot your phone into recovery mode.
2.Tap the “Backup” button.
3.Then check the EFS option in the list.
4.Finally, swipe the confirmation slider.
5.Reboot the device.
6.To recover the lost EFS , you can select “Restore” option next time. "
SAMPPLE said:
First what version of TWRP you have ?
Second read this little thing from droidviews : http://www.droidviews.com/how-to-backup-and-restore-efs-data-on-nexus-5/
" 1.Boot your phone into recovery mode.
2.Tap the “Backup” button.
3.Then check the EFS option in the list.
4.Finally, swipe the confirmation slider.
5.Reboot the device.
6.To recover the lost EFS , you can select “Restore” option next time. "
Click to expand...
Click to collapse
2.7.0.0
I'm sure I backed up efs when I made the backup because the efs folder is there and has a tar file.If I restored the backup would that restore efs too ? if so,twrp won't display internal SD content when I choose restore for some reason...
Madarox said:
2.7.0.0
I'm sure I backed up efs when I made the backup because the efs folder is there and has a tar file.If I restored the backup would that restore efs too ? if so,twrp won't display internal SD content when I choose restore for some reason...
Click to expand...
Click to collapse
Try moving your backup folder in internal storage then restore your efs if this is possible
Hi!
Today i will switch from HTC One S to an I9300.
Can i Backup and restore the EFS Partition with TWRP and do i have to restore the EFS Partition after flashing a custom rom?
On my One S i´ve deleted all partitions and the flashed a custom rom but on that phone i did not have to backup any efs data.
thx in advance!
b0mb
You can backup&restore /efs with TWRP.
You should only wipe partitions, offered in TWRP, before flashing another rom. You mustn't restore /efs afterwards. Generally avoid any actions on /efs /dev: high chance of brick of losing your IMEI.
I've seen that there are different tools for backing up EFS partition but using TWRP looks like the easiest way to me....
Afaik these tools don't store anymore than TWRP. So keep it easy. But forum.xda-developers.com/showpost.php?p=56492632&postcount=15 @billa says, that this is no 100%-insurance: IMEI would be saved in dev-partition.
Lost EFS
rp158 said:
Afaik these tools don't store anymore than TWRP. So keep it easy. But forum.xda-developers.com/showpost.php?p=56492632&postcount=15 @billa says, that this is no 100%-insurance: IMEI would be saved in dev-partition.
Click to expand...
Click to collapse
Do you know how to regenerate the efs? I´ve lost it and now i have a corrupt IMEI.
No. Too few details.
First, search in Q&A for it.