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-A720F
Software version: 37.0
Waiting ADB device... OK
Reading phone info...
Model: SM-A720F
Android version: 8.0.0
PDA version: A720FXXU8CSF1
CSC version: A720FOJV8CSF1
Phone version: A720FXXU8CSF1
Product code: SM-A720FZKAXSG
CSC country code: UAE
CSC sales code: XSG
Phone SN: R58JB21QCAW
IMEI: 353933080392538
HW version: MP 0.400
RF cal date: 20171109
Chip name: EXYNOS7880
Modem board: SHANNON325
Security patch: 2019-06-01
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... modem not supported
Searching server... OK
Checking available files... not found compatible file
KNOX WARRANTY VOID is 0x1. Phone is not supported
Done with Samsung Tool PRO v.37.0
certifika veremiyorum böyle bi hata alıyorum bilgisi olan varmı arkadaşlar..