There is no single "official" website for all 8227L units, as the hardware is manufactured by various companies.

: If your unit claims to run Android 11 but AIDA64 reports Android 8 or 9 with API Level 27 or 28, you have a spoofed system, and flashing genuine Android 11 firmware may not be possible due to hardware constraints.

: The firmware files (often named update.zip or similar) are placed in the root directory.

: The screen will change to an Android robot graphic with a progress bar. Do not touch the device until it completely boots back into the standard radio home screen. Method 2: Recovery Mode / Force Update

Plug in a standard USB computer mouse to navigate. Go to Factory Settings and look for "Touch Screen Calibration" to map the capacitive glass coordinates again.

If the screen stays black for a long time during the update, wait. Interrupting the process can permanently damage the hardware.

: Plug the drive into the unit while it is on. A prompt should appear asking to update.