g935f restert how to fix
 

Checking local file... OK
Searching server... OK
Compare local and server file... OK (up to date)
Searching USB Flash Interface... detected COM5
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: G935FXXS1APG5
Platform: exynos7420
Boot serial: 98867832374b4c3246
Product board: herolte
Initializating zTool... OK
Running zTool, please wait...
Start... OK
Init... OK
Generate and check client proof... OK
Verify proof by client... OK
Checking DRK status... OK
Repairing DMVT key... error
Rebooting phone... OK
Repair DRK done

Done with Samsung Tool PRO v.26.4