: Samsung — indicates the firmware is configured to work with Samsung-style remote codes and logos.
turn off the power until the blinking stops and the TV restarts.
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
Plug the TV back in. On many boards, the update starts automatically, and the standby LED will blink rapidly.
: TP.MS358.PB801 — a popular universal Android smart TV board.
: 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.
Using the wrong firmware can "brick" your TV. Ensure your board is exactly TP.MS358.PB801 A10 before proceeding. You can verify this by checking the physical label on the green motherboard inside your TV.