Pritom M10 Firmware Portable Better -

If your M10 is non-functional, a standard update won't work. You’ll need a PC-based "portable" flash tool setup. How to Find and download Firmware file for chinese tablets

If you face any of these, a clean firmware flash (using a portable tool) is your best bet.

Here’s a breakdown of the notable features related to firmware and portable use for the (typically a rugged, portable Android barcode scanner / POS terminal):