REPAIR INSTRUCTIONS:
1. Power on the phone.
2. Enable 'USB debugging' in 'Settings'-'Developer options',
tap 7 times on 'Build number' in 'Settings'-'About phone' to enable 'Developer options'.
3. Connect the phone to PC with USB cable, install drivers if needed.
4. Select device in ADB settings.
5. Press 'Reboot to...' button and select mode to reboot (download or recovery).
Operation: Patch Certificate
Selected model: SM-G965F
Software version: 37.0
Waiting ADB device... OK
Reading phone info...
Model: SM-G965F
Android version: 9
PDA version: G965FXXU6CSGD
CSC version: G965FOXM6CSG5
Phone version: G965FXXU6ASG5
Product code: SM-G965FZAEXFA
CSC country code: SOUTH AFRICA
CSC sales code: XFA
Phone SN: RF8K31FB3NT
IMEI: 35009XXXXXXXXX
HW version: MP 0.900
RF cal date: 20180311
Chip name: EXYNOS9810
Modem board: SHANNON360
Security patch: 2019-08-01
Boot Warranty bit: 1
SIM State: LOADED
Checking Super user right... true
Initialization zTool... OK
Running zTool, please wait... OK
Reading data from phone... OK
Searching server... OK
Checking server answer... OK
Executing... OK
Searching server... OK
Waiting for server answer... OK
Patching... OK
Rebooting phone... OK
Done with Samsung Tool PRO v.37.0