– Applying the wrong firmware ( lad.mv9.p-6 to an incompatible board) can brick the device. Verify your current hardware revision matches “mv9”.
If there is a mismatch, the board may boot but send garbled synchronization signals, causing the screen to display fragmented lines or a "No Signal" error loop. Furthermore, the remote control code matrices are baked straight into the binary files; using a mismatched firmware revision can render the physical control buttons or infrared (IR) sensor completely unresponsive. Step-by-Step USB Firmware Flashing Guide lad.mv9.p-6 firmware