: Always back up your current firmware before updating, as using the wrong version can cause your TV to become unresponsive.
: Ensure you have all parts (e.g., part1, part2, part3, and part4) in the same folder. Download MS338 PC821 1920x1080 Wansa India part4 rar
: Insert the USB into the TV's port while it is off, then power it on to trigger the automatic update process. : Always back up your current firmware before
: A resource site by Sunny Awatramani that frequently updates firmware for LCD/LED TVs . Download MS338 PC821 1920x1080 Wansa India part4 rar