: Insert the USB drive and the 7-key button board into the controller. Connect the 12V power.
The flashing process is standardized for these 3663-based boards: : Format a USB flash drive to FAT32 . Download D3663LUA 1920x1200 rar
: If the image is mirrored or has incorrect colors after flashing, access the factory settings by pressing "Input" then "2 5 8 0" on your remote. : Insert the USB drive and the 7-key
: Technical manuals and some firmware links are available in User Manuals uploaded by users. Installation Guide (USB Upgrade) Download D3663LUA 1920x1200 rar
: The indicator light on the key button board will flash (often alternating red and blue) for about 1 minute . Do not disconnect power during this time.