Once finished, the charger will typically reboot. Check the boot screen or the "System Info" menu to verify the new version number is active. Troubleshooting Tips
Even experienced hobbyists hit a wall. Here are the three most common failure modes and how to fix them. Htrc T240 Duo Firmware Update
Disclaimer: This guide is for informational purposes. Firmware updates carry an inherent risk of device failure. Always follow the manufacturer’s official instructions first. Understanding HTRC T240 Duo