M.NT68676.3 is a universal LCD controller board (also known as a driver or scaler board) based on the Novatek NT68676
Since there is no "official" Novatek website for hobbyists, you’ll need to visit community forums like Remont-aud.net , VCCBoard , or specialized DIY monitor groups to download the specific .BIN file for your resolution. The Flashing Process (General Steps) M.nt68676.3 Firmware
Updating or changing the firmware on this board is a technical process that usually requires dedicated hardware: Pre-Flashing : Most retailers like or sellers on AliExpress Step 1: Prepare the USB Drive