Plug the TV back in. On many boards, the update starts automatically, and the standby LED will blink rapidly.
: Samsung — indicates the firmware is configured to work with Samsung-style remote codes and logos.
: TP.MS358.PB801 — a popular universal Android smart TV board.
turn off the power until the blinking stops and the TV restarts.
: Use a tool like WinRAR or 7-Zip to extract Part 1 (this automatically pulls data from Part 2 and 3). You should get a file named allupgrade_ms358_xxx.bin or similar.
The filename you've provided refers to specifically for a Chinese "universal" motherboard, used to repair or update TVs that use the Samsung panel or remote. Firmware Breakdown
: If the screen is "mirrored" (upside down) after the update, you may need to enter the Service Menu (usually Input + 2580 or Menu + 1147 ) to adjust the "Mirror" setting.