Because the X96 Mini is produced by various manufacturers using the same generic branding, there is no single "official" website. You can find this specific firmware file on reputable TV box community sites:
The specific firmware package is a stock firmware update for the X96 Mini TV Box equipped with the Amlogic S905W processor. This update is typically used to fix bugs or reinstall the factory Android system. Where to Download download-x96-mini-s905w-update-android-20200620-zip
: Click "Update" and the box will reboot into recovery to flash the firmware. Because the X96 Mini is produced by various
To install a .zip update file, you generally use the "Local Update" method: download-x96-mini-s905w-update-android-20200620-zip