Insert the USB drive into the TV's USB port (prefer the USB 2.0 port if labeled).
is a 4K Smart LED TV. Firmware updates for these models are often distributed in multi-part RAR archives (e.g., part1.rar , part2.rar ) due to the large file size of the Android-based OS. Step-by-Step Installation Guide
The software will automatically pull data from the other parts to create a single software file, usually named MstarUpgrade.bin or allupgrade_...pkg . Use a high-quality USB 2.0 drive (8GB or 16GB is ideal). Format the drive to FAT32 .
You must download parts of the archive (part1, part2, etc.) into the same folder on your computer. If you only have part 1, the extraction will fail. Extract the Files
Release the button once the "Software Upgrading" or "System Recovering" screen appears.
Press and hold the on the TV panel (not the remote). While holding the button, plug the power cord back in.