I finally managed to repair the damage caused by EFS and by when I go to the root explorer I had a clean empty folder EFS whatever I tried to install the new ROM moaning and costum and wipe reset Factory me is always the folder EFS empty my IMEI was correct as it was under the battery, the only thing I had a bad signal and wifi is deenergizes.
To repair the damage I'm desperate to be ordered from stock rom sammobil version 4.4.2 because my phone was slow I then ordered stoc 5.0 then I root the phone and ordered phils latest recover and then I went under the option to mount and put the mount seytem then I have connected phone to a PC and install the adb shell on the computer I Open cmd and typed it
adb shell
su
mke2fs /dev/block/mmcblk0p11 ( skip to next step if fail)
mount -w -t ext4 /dev/block/mmcblk0p11
reboot
This will create a generic EFS files on device
Root explorer/efs and delete factorymode(OFF) and replace with factorymode(ON)
reboot in recovery wipedata factory reset...don
This last what it says to me it was not necessary because I went in and looked exporer root file factorymode where it has been on only one I did factory reset and that's it I got back EFS files and I am so done with all programs EFS Bacup :good:
P : S: because I have a bad signal or should now install new modem in order to find the best signal
Yeah used to see that tutorial by nowy57.
Sent from my GT-N7000
Related
hello,
i just now rooted my phone and installed esfile explorer to backup my /efs folder before flashing.
but the /efs folder is empty.
can somebody tell me from where i can find the nv_data.bin file?
you need to become a superuser in the shell first by typing su, than you will see the contents
or you could just use root explorer lol
oh n fyi in addition to just backing up the folder , you can make a flashable with odin backup by :
running adb shell
and than :
su
dd if=/dev/block/stl4 of=/sdcard/efs.rfs
take the efs.rfs file and add it to a UNIX compatible TAR and its ready to be reflashed should the worst happen. also its a full backup of the EFS not just IMEI.
i done this as soon as i heard horror stories of people loosing there IMEI.
im new to all this but its my beleif you will loose your IMEI if you flash with the wrong OPS or flash a i5801 rom for the first time and will need to restore nv_data.bin for that to work. as i sed i cant confirm the reasons but thats a educated guess
I already backed up entire efs partition.
to be safer, i thought of copying the contents of /efs also
maverickgenius said:
hello,
i just now rooted my phone and installed esfile explorer to backup my /efs folder before flashing.
but the /efs folder is empty.
can somebody tell me from where i can find the nv_data.bin file?
Click to expand...
Click to collapse
This is what i did... will help you too..!! Use root explorer!!
copy the efs folder to your sd card!!!
edit: i had 5 files in my efs folder including nv_data.bin
This should help you!!!http://forum.xda-developers.com/showthread.php?t=953264
hi .
my problem started when i used a command to backup my efs : reboot nvbackup
the phone rebooted but i get this problem (process system isn't responding )
1) i tried two firmware 4.3 version
2) when entring to recovery i get this error
E:missing biymap icon_att_fota_installing (code -1)
E:missing biymap icon_att_fota_updating (code -1)
E:missing biymap icon_att_fota_complete (code -1)
E:missing biymap icon_att_fota_error (code -1)
3) tried to flash recovery Philz Touch 5.15.0 and wiping dalvik cache
4) flashed Synergy_Backup_HWKeys_signed.zip discribed in this thread
http://forum.xda-developers.com/showthread.php?t=2507403
5) flashed parm.bin dumped from working phone
6) flashed efs.img.ext4 dumped from working phone
all this steps don't solve my problem
I would be very grateful for help and any hints/suggestions are highly appreciated.
Thanks a lot in advance!
any one there?
psa47 said:
any one there?
Click to expand...
Click to collapse
Take a look HERE
*EDIT: Next time use this app for backup ur EFS partition: HERE
Joku1981 said:
Take a look HERE
*EDIT: Next time use this app for backup ur EFS partition: HERE
Click to expand...
Click to collapse
thanks for reply but my problem now is : ican't enter the menu, can't see phone desktop
only download mode or recovery.
the restore backup discribed on the tuto doesn't talk about restoring nvdata from recovery
i need pit file, i extract it from working phone using dd if=/dev/block/mmcblk0 of=/sdcard/out.pit bs=8 count=481 skip=2176
finally i solved my problem after hard work and 2 week of search an d this is how to:
i followed this thread wich is writed for n9005 http://forum.xda-developers.com/showthread.php?t=2567133
i use this recovery file http://forum.xda-developers.com/showthread.php?t=2529064
you need mmcblk0p12, mmcblk0p13 and mmcblk018 backup files
1- copy UPDATE-SuperSU-v1.65 - Superuser http://www.multiupload.nl/ALFN3R16HY and mmcblk files to external sd
2- go to recovery and run UPDATE-SuperSU-v1.65 ( don't reboot system after applying this update zip).
3- without rebooting phone; go to -mount and storage- and mount /system & mount external_sd.
4- open cmd in adb folder and run these commands:
adb shell su ( if you get : permission denied then rerun UPDATE-SuperSU-v1.65)
dd if=/external_sd/mmcblk0p12 of=/dev/block/mmcblk0p12
dd if=/external_sd/mmcblk0p13 of=/dev/block/mmcblk0p13
dd if=/external_sd/mmcblk0p18 of=/dev/block/mmcblk0p18
reboot
after reboot phone should boot normally and work properly .
JUST PRESS THANKS IF THIS HELP YOU
HELP
psa47 said:
finally i solved my problem after hard work and 2 week of search an d this is how to:
i followed this thread wich is writed for n9005 http://forum.xda-developers.com/showthread.php?t=2567133
i use this recovery file http://forum.xda-developers.com/showthread.php?t=2529064
you need mmcblk0p12, mmcblk0p13 and mmcblk018 backup files
1- copy UPDATE-SuperSU-v1.65 - Superuser http://www.multiupload.nl/ALFN3R16HY and mmcblk files to external sd
2- go to recovery and run UPDATE-SuperSU-v1.65 ( don't reboot system after applying this update zip).
3- without rebooting phone; go to -mount and storage- and mount /system & mount external_sd.
4- open cmd in adb folder and run these commands:
adb shell su ( if you get : permission denied then rerun UPDATE-SuperSU-v1.65)
dd if=/external_sd/mmcblk0p12 of=/dev/block/mmcblk0p12
dd if=/external_sd/mmcblk0p13 of=/dev/block/mmcblk0p13
dd if=/external_sd/mmcblk0p18 of=/dev/block/mmcblk0p18
reboot
after reboot phone should boot normally and work properly .
JUST PRESS THANKS IF THIS HELP YOU
Click to expand...
Click to collapse
!!!! Help I'm with the same problem .. but can not these files bck .. can someone please pass me, I'm already two weeks trying to fix
Hi all
I still have IMEI, I'm able to make phone calls and everything else. But my phone is in this Factory Mode and my EFS folder can not be mounted and it empty.
I have EFS back up.
when i flash somthing i see 'E: unable to mount /efs' error'
I have tried to search for sulotion without succes and i tried to flash stock rom and other roms and still same problem.
what sould i do?
up
eden66 said:
Hi all
I still have IMEI, I'm able to make phone calls and everything else. But my phone is in this Factory Mode and my EFS folder can not be mounted and it empty.
I have EFS back up.
when i flash somthing i see 'E: unable to mount /efs' error'
I have tried to search for sulotion without succes and i tried to flash stock rom and other roms and still same problem.
what sould i do?
Click to expand...
Click to collapse
That's a weird problem.
It sounds like the EFS is working properly but the phone can't mount the partition properly. (Which is weird by itself)
You might try using Odin to flash back to bone stock to see if that repairs the partition. But that might be risky if the EFS is damaged because any further damage might totally kill the EFS.
When you say you have the IMEI do you know that because you can make calls? Or do you know that because you have looked in settings and it tells you what your IMEI is?
Skipjacks said:
That's a weird problem.
It sounds like the EFS is working properly but the phone can't mount the partition properly. (Which is weird by itself)
You might try using Odin to flash back to bone stock to see if that repairs the partition. But that might be risky if the EFS is damaged because any further damage might totally kill the EFS.
When you say you have the IMEI do you know that because you can make calls? Or do you know that because you have looked in settings and it tells you what your IMEI is?
Click to expand...
Click to collapse
I tired back to stock but same probelm.
And i see the IMEI in the settings and when I dail *#06#. The IMEI is ok like it As appears behind the battery.
its very wierd
eden66 said:
Hi all
I still have IMEI, I'm able to make phone calls and everything else. But my phone is in this Factory Mode and my EFS folder can not be mounted and it empty.
I have EFS back up.
when i flash somthing i see 'E: unable to mount /efs' error'
I have tried to search for sulotion without succes and i tried to flash stock rom and other roms and still same problem.
what sould i do?
Click to expand...
Click to collapse
Hi mate ,
try this maybe folder are not mounted correctly
1- Install / use Terminal Emulator
2- mount -r -w -o remount,rw -t ext4 /dev/block/mmcblk0p10
3- mke2fs /dev/block/mmcblk0p10
4- mount -r -w -o remount,rw -t ext4 /dev/block/mmcblk0p10 /efs
5- Reboot
Anyhow check this thread also
http://forum.xda-developers.com/showthread.php?t=2392632
In recovery mode I am not able install any ROMS, theres the error Failed to mount /efs (Invalide argument)
I can only flash stock roms using odin, everything works on stock roms except for the wifi, after connecting/disconnecting multiple times, the wifi stops responding and wont work in the future
---------------------------------------------------------------------------------------------------------------------------------------------
(( SOLVED ))
First thing you should do, is to backup your EFS if you still have it.
I had mine but it wasn't mounting properly.
In order to back it up, please download terminal emulator on a rooted device and follow this video
I would try to back it up, even if you think the efs is messed up... worst case scenario is you end up where you started, not worse off.
---------------------------------------------------------------------------------------------------------------------------------------------
Your device needs to be rooted.
1.) Download SDK tools here - Scroll down to the bottom and "Get just the command line tools"
2.)Install TWRP , Find your device, download the .tar and flash it using ODIN
Boot in to recovery, in TWRP you want to go to mount, make sure system, esf are checked.
3. If you installed SDK tools, go to c:\android tools\SDK tools. hold shift and right click on the area inside the folder and select run command line from here.
4.) In cmd, type
Code:
ADB devices
ADB Shell
SU
mke2fs /dev/block/mmcblk0p10
mount -w -t ext4 /dev/block/mmcblk0p10 /efs
5.) You should be good!!!
can't boot my phone cause I have deleted my efs folder becasue in one of the guides here someone said that if you had full recovery of your efs and you sure that your efs folder is damged than delete the folder and recover, well so I did... (I downgrade from lolipop to 4.4.2, lost my imei in the "process"
I had the efs.img backup on my computer and I moved it to my phone, I deleted my efs folder using root browser and than I used some adb app to type the commend "dd if=/sdcard/efs.img of=/dev/block/mmcblk0p3 bs=4096" and I restred my phone, but it never left samsmung logo and I can't boot up my phone I tried to go to stock channgeing roms, nothing helps, in recovery mode it says "E:/can't mount efs" something like that.. and the phone won't boot up, just stuck on samsung logo.
somone have any Idea what can i do?
After flashing a stock ROM, did you perform a factory wipe before booting the phone for the first time?
audit13 said:
After flashing a stock ROM, did you perform a factory wipe before booting the phone for the first time?
Click to expand...
Click to collapse
you mean when I downgrade from lolipop to the stcok rom?, if yes Than I didn't and that what cause me losing my imei and started this whole efs problem...
Did you try flashing back to stock LP? Flashing stock kk would not normally damage the efs.
audit13 said:
Did you try flashing back to stock LP? Flashing stock kk would not normally damage the efs.
Click to expand...
Click to collapse
yey I manged to fix ti!!!! god that was hard **** yes!! to me!
if someone will see this so this is what I did
1) I flashed to stock rom based lolipop but still had the issue of "E:failed to mount /efs" cause it didn't recvoer the folder and my phone still won't boot up, so I found a fix
right here http://forum.xda-developers.com/galaxy-s3/general/how-to-fix-efailed-to-mount-efs-invalid-t2858056
adb shell
Code:
mke2fs /dev/block/mmcblk0p3
Code:
mount -w -t ext4 /dev/block/mmcblk0p3 (this line dind't even work for me so I skipped it)
Code:
reboot
affter I did it phone boot up finally but I still had a fake Imei so next I used this guide (this time I ain't deleting the efs folder like he wrote"
2)http://forum.xda-developers.com/showthread.php?t=2392632, I alredy had efs.img as back up so all I did is install latest "su" and the latest busybox than I installed "Terminal Emulator"
and used the second method
"Put your efs.img on your phone memory(not external sd card!) in the main memory, not inside folder.
Open terminal emulator
Write the following:
Code:
su
Then click enter. It will ask for super user permission, give it permissions.
Then write:
Code:
dd if=/sdcard/efs.img of=/dev/block/mmcblk0p3 bs=4096"
my phone rebooted and now I have my imei back!
Congratulations on your success and posting your solution!
worked for me
okdark4 said:
"Put your efs.img on your phone memory(not external sd card!) in the main memory, not inside folder.
Open terminal emulator
Write the following:
Code:
su
Then click enter. It will ask for super user permission, give it permissions.
Then write:
Code:
dd if=/sdcard/efs.img of=/dev/block/mmcblk0p3 bs=4096"
my phone rebooted and now I have my imei back!
Click to expand...
Click to collapse
Hi okdark4,
thanks for sharing!
For me, I hat to use a slightly different command - just for the others to know:
su
dd if=/sdcard/efs.img of=/dev/block/mmcblk0p3
reboot
That's it!