This guide provides everything you need to identify, download, and install the correct firmware for the H3Q44-V3.0 PCB. Understanding the H3Q44-V3.0 Hardware
To press the hidden reset button inside the AV port. Where to Download the Firmware
Before flashing, open your device and verify that "H3Q44-V3.0" is printed directly on the green or blue board. Why You Might Need New Firmware