V1.0 changes the default UART baud rate from 9600 to 115200. Fix: Adjust your terminal settings. The firmware announces a "baud rate handshake" at startup; listen for +++ to auto-detect.

Essential for technicians dealing with the "Red Light" issue.

Mp1-avl1506t-fw-zzq V1.0: Everything You Need to Know About the Latest Firmware

(like "No Signal" or "Hang on Logo"), or are you just looking for the latest download link