A failed firmware update is the #1 cause of bricked STBs. When the main firmware corrupts, the device cannot boot. The EROM region, however, often remains intact. The upgrade tool lets you force a new firmware via the RS-232 serial port or USB.
Ensure the "Include Bootloader" checkbox is ticked (this is critical for unbricking). Initiate Connection: Click "Next." stb erom upgrade tool download
(e.g., X96 Mini – Amlogic S905W)
The is legal to own and use for repairing your own hardware. However, using it to: A failed firmware update is the #1 cause of bricked STBs