This indicates the software is designed for Full HD (FHD) panels. Installing firmware with the wrong resolution can lead to a "no picture" or distorted display issue.
The if you're trying to repair a hardware-level power issue. Download MS358 PC821 1920x1080 Amman part01 rar
Insert the USB into the TV's blue slot (if available) and select "USB Update" from the settings menu, or use a hardware boot-trigger (like holding the power button) if the screen is unresponsive. Critical Warning This indicates the software is designed for Full
Constant current 360mA with a voltage range of 45-180V DC. Software Component Analysis The file name you mentioned is a specific firmware variant: Download MS358 PC821 1920x1080 Amman part01 rar