Check your power sequence timing. You must click Next in the software interface before flipping the physical power toggle on the set-top box hardware. If the error persists, swap your TX and RX pins inside your RS-232 connection line. "Model ID mismatch"
The STB must be powered on after clicking the "Next" button in the software. If it is already on, the tool will fail to catch the boot trigger signal. Error: Progress Bar Stalls at 0% stb upgrade tool ver 40 2 work
: Always attempt to dump your current flash data using the software's "Dump" or "Backup" function mode prior to overwriting the board, in case you need to salvage specific hardware keys. Check your power sequence timing