Download Odin V3.14.4
Extract the firmware file you just downloaded. You should get 1 file:AP (System &Recovery)
Add MD5-file in AP-field in OdinReboot
your phone in Download / Odin mode (make sure your device is off) with
the following button combo: POWER + VOLUME DOWN + BIXBYOther options in case first option did not work or isn't possible.
Option 2 VOLUME DOWN + VOLUME UP then USB cable
Option 3 POWER + VOLUME DOWN + VOLUME UP
Option 4 POWER + VOLUME DOWN + HOME BUTTON
Option 5 (Note9) USB cable + VOLUME DOWN + BIXBY
Option 6 (Note10) POWER + VOLUME UP
Once
in download mode, connect your phone to the PC, preferably using the
original USB cable you got with your phone. Odin should detect your
device and a BLUE box will show up with the COM port number. (Be sure,
the SAMSUNG-drivers are installed on your PC!)Do NOT tick any extra boxes. The only options to be ticked are F.Reset Time and Auto-Reboot.Click
the start button, wait for Odin to say 'PASS' in a GREEN box. Once the
flash is complete, your phone will reboot, and you can disconnect your
phone from the PC.