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-G960F
Software version: 37.0
Waiting ADB device... OK
Reading phone info...
Model: SM-G960F
Android version: 9
PDA version: G960FXXU3CSD4
CSC version: G960FOVF3CSD1
Phone version: G960FXXU3CSD3
Product code: SM-G960FZAAXFV
CSC country code: South Africa
CSC sales code: XFV
Phone SN: R58K84ME9MP
IMEI: 350
HW version: MP 0.900
RF cal date: 20180824
Chip name: EXYNOS9810
Modem board: SHANNON360
Security patch: 2019-04-01
Boot Warranty bit: 1
SIM State: ABSENT
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