I rooted my device (lenovo 2107a) and then updated new custom firmware with below instructions:
- Downloaded new firmware into
- booted to CWM
- selected "backup and restore" -> "advanced restore from internal sdcard"
- and chose my custom ROM
- Then i selected "system restore"
So i saw an error that said cannot restore and restore goes to break. now when boot my device i see a screen that wants to select country code and after select device will reboot again and i see same screen.
so i decided to restore my old backup, but even old backup restoring gives me the error that cannot restore.
i find the problem, when i open shell with this command:
adb.exe shell $su su segmentation fault
the problem is that all of data in
/system is read-only and i cannot even root with su. i tried everything like re-rooting device, but still i cannot shell as root.
mount cannot be run (operation not permitted)
adb.exe remount (cannot be execute)
fixsu.sh cannot be executed because has not access to /system (everything is read-only)
psneuter gives (failed to set prot mask (inappropriate
ioctl for device))
is there any way to delete
/system and re-upload that or something that can solve my problem?