One customer reported that his Xhorse Multi-Prog was stuck in the upgrade process.
Xhorsetool.com engineer offered the solution below:
Press and hold the RST button for 5 seconds before connecting the power adapter to power on, and then release to update the firmware again
NOTE:
Do not release RST button before starting up, and do not release it until starting up and then update the firmware again!
Tech support:
Email: Sales@xhorseTool.com
Whatsapp: +8613343421783