Install the necessary USB-to-Serial drivers (often Silicon Labs or generic CH340 drivers) on your PC to ensure the charger is recognized. Connection:
Recent updates have introduced a "Battery Health Check" and support for high-voltage (LiHV) batteries. Htrc T240 Duo Firmware Update
: If your update is meant to fix voltage inaccuracies, you can also access the built-in Calibration menu in the settings to manually adjust cell voltage monitoring. Htrc T240 Duo Firmware Update