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[SOLVED] GT-P7100 Problem. Efs folder is restored, but after reboot it is again empty

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porcelana
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(Last edited by porcelana; 19th July 2014 at 06:33 AM.)
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Default [SOLVED] GT-P7100 Problem. Efs folder is restored, but after reboot it is again empty

Efs partition on my tablet Samsung GT-P7100 (Tab 10.1v) damaged. Now I have IMEI - Unknown and Baseband - Unknown. I too have a file backup efs_backup.tar.gz, which made early in the program GalaxSimUnlock. I restored my efs partition perfectly using this backup file efs_backup.tar.gz and program GalaxSimUnlock. I see correct IMEI and Baseband values. But after reboot my tablet efs folder is empty again and I have again my IMEI - Unknown and Baseband - Unknown. Can anyone help me with this problem please?
 
porcelana
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(Last edited by porcelana; 19th July 2014 at 06:34 AM.)
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Problem solved. I restored efs partition from backup manually using programs Android Terminal Emulator and BusyBox and my old backup file efs_backup.tar.gz which I put previously in a tablet on sdcard in the GalaxSimUnloclk folder:

su
umount /efs
mke2fs /dev/block/mmcblk0p1
mount -w -t ext4 /dev/block/mmcblk0p1 /efs
busybox tar zxvf /sdcard/GalaxSimUnlock/efs_backup.tar.gz -C

After that I see correct IMEI and Baseband values and it does not get lost anymore after reboot the tablet.

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