High risk; installing the wrong resolution or remote configuration can lead to a scrambled display or an unresponsive remote.
Extract all RAR parts into a single folder to obtain the binary file (usually named all_upgrade_ms338_2g.bin or similar). Download MS338 PB802 1366X768 512M RAYLAN REF60 part1 rar
The firmware is typically installed via the : High risk; installing the wrong resolution or remote
Files sourced from technician forums like Lab-One Forum or Receiver Pro are generally reliable but should be used with a backup of the original BIOS. Download MS338 PB802 1366X768 512M RAYLAN REF60 part1 rar
Inserting the drive and powering on the TV triggers an automatic update. Users report the indicator light blinks during the process, and a "Software Upgrading" message should appear on the screen.