Often caused by a mismatched hardware revision. Confirm your device is specifically the H3Q44 model.
Obtain the official .bin or .img file from the manufacturer’s support portal. Verify the MD5 checksum to ensure the file was not corrupted during download. h3q44 v3.0 firmware
Once you click 'Upgrade', the device will become unresponsive for several minutes. The status LED typically blinks rapidly during this phase. Do not manually restart the device. Often caused by a mismatched hardware revision