: 1920x1080 (Full HD). It is critical that the firmware matches your panel's native resolution.
: Format a USB drive to FAT32 and copy the firmware file to the root directory. Flash : Insert the USB into the board. Connect the keypad and power on the board.
Using the wrong resolution or memory variant can "brick" the board or cause a distorted display. MSD338STV5.0 USB Firmware Software Bios Bin
: The .rar extension indicates a compressed archive, and "part2" suggests it is part of a multi-part download required to fully extract the .bin or image file used for flashing. Where to Find Downloads
The text "Download MSD338STV5 1920x1080 USB part2 rar" likely refers to a specific for the MSD338STV5.0