: It is highly recommended to perform a factory reset after a major binary update to prevent software glitches. Westan Support Centre for a particular brand or model? BDL3452T - FORCED Firmware Update Procedure

Old firmware is a goldmine for hackers. MStar chips run Linux (Android TV). Using an upgrade.bin leaves you vulnerable to BlueBorne or KRACK attacks. Using a new firmware patches these exploits. Therefore, updating is recommended for security, but only if the source is trusted.

Holding a specific button (e.g., or Right Arrow ) while turning the power back on.