hi
phone was slow
when i did factory reset i noticed dm failed in recovery
i downgrade from 7 to 6.0.1
phone stuck at recovery
dm failed
i tried octopus and chimera but both required phone on normal mode
but z3x did it in download mode
so i did drk repair by z3x
first flash pit file + 4 file stock firmware
then do drk by z3x
Quote:
REPAIR INSTRUCTIONS:
Phone must be rooted!
If the software can't root the phone automatically,
then you must root your device manually.
1. Power on the phone.
2. Tap 7 times on 'Build number' in 'Settings'-'About phone' to enable 'Developer options',
go to 'Settings'-'Developer options' and enable 'USB debugging'.
3. Connect the phone to PC with USB cable, install drivers if needed.
4. Select device in ADB settings.
5. Fill values what you need to repair.
6. Press 'Repair' button.
7. Press 'Patch Certificate' if you have network problem after repairing.
7. Press 'Reset EFS' if you need to reset it.
Be carefully, do not perform this without necessity. Backup will be created automatically.
Operation: Repair DRK
Selected model: SM-G925F
Software version: 30.7
Checking local file... OK
Searching server... OK
Compare local and server file... OK (up to date)
Searching USB Flash interface... COM7 detected
Setup connection... OK
Reading data from phone... OK
Sending data to phone... OK
Sending data to phone... OK
Waiting ADB device... OK
Reading phone info...
Recovery build version: 6.0.1
Boot version: G925FXXU5DQAG
Platform: exynos7420
Boot serial: 03157df3f809b924
Product board: zerolte
Initialization zTool... OK
Running zTool, please wait...
Start... OK
Initialization... OK
Generate and check client proof... OK
Verify proof by client... OK
Checking DRK status... NG!
Writing DRK... OK
Checking DRK status...
Repairing DMVT key... OK
Rebooting phone... OK
Repair DRK done
Done with Samsung Tool PRO v.30.7
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