Flashing stock firmware is typically used to fix software issues like boot loops or to manually upgrade/downgrade the OS.
If an update is available, follow the onscreen instructions to download and install it. Via My HONOR App Quick Services and select Firmware HONOR 90
If no update appears, you can check for "Tryout versions" by tapping the three dots in the top right corner. Manual Firmware Flashing Flashing stock firmware is typically used to fix