Press and hold the Power button on the TV (not the remote) and turn on the main power.
The specific firmware for the Android board with a 1920x1080 resolution (REF29) can typically be found on specialized LED/LCD TV repair communities. Because these files are often split into multiple parts (like "part2.rar"), you must download all parts to the same folder before extracting them. Firmware Download Resources Kazmi Elecom : This site is a widely cited source for the TP.MS338.PB801 Download MS338 PB801 1920x1080 REF29 USB part2 rar
: Place the extracted .bin file (often named allupgrade_ms338_2G_sos.bin or similar) directly onto the root of the USB drive. Update Process : Turn off the TV. Plug the USB drive into the TV’s USB port. Press and hold the Power button on the
Wait for the "Software Updating" screen to appear. Do turn off the power until it finishes. Firmware Download Resources Kazmi Elecom : This site
: Format a USB flash drive (8GB or smaller is recommended) to FAT32 .
: Ensure you have downloaded both part1.rar and part2.rar . Use a tool like WinRAR or 7-Zip to extract the first part; it will automatically pull data from the second part to create the final .bin file.