: If the TV still boots, try to backup your current settings or firmware if the menu allows.
: Ensure the firmware is strictly for 1920x1080 ; installing a 1366x768 version on a Full HD screen can cause a distorted display or "black screen". Download MS338 PC821 1920x1080 Santron India ref66 part5 rar
The standby light should start flashing rapidly, indicating the update is in progress. during this time. : If the TV still boots, try to
: Format a USB flash drive (ideally 8GB or smaller) to FAT32 . : If the TV still boots