Extract the firmware file you just downloaded. You should get 1 files
Add each file to it's respective field in Odin v3.13.3. Use AP if you want to do a clean flash if you want to keep your apps and data
Reboot your phone in Download / Odin mode (make sure your device is off) with the following button combo: POWER + VOLUME DOWN + BIXBY
Other options in case first option did not work or isn't possible.
Option 2 VOLUME DOWN + VOLUME UP than USB cable
Option 3 POWER + VOLUME DOWN + VOLUME UP
Option 4 POWER + VOLUME DOWN + HOME BUTTON
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