What specific are you trying to use with this universal board?
: Power off the board, insert the USB, and restore power. The indicator LED should begin to blink rapidly, signaling that the update is in progress. Do not remove power until the light stabilizes or the screen turns on. Download MSD338STV5 1366x768 USB part3 rar
You can look for the complete set of archive parts on specialized technician communities: What specific are you trying to use with
Flashing the wrong firmware can permanently brick your hardware. Before you download any replacement files, ensure they match your hardware perfectly: : Must read MSD338STV5.0 . Screen Resolution : Must be precisely 1366x768 . insert the USB