| Issue | Likely Cause | Solution | |-------|--------------|----------| | PC doesn’t detect charger | Wrong USB cable (charge-only) | Use data-capable cable. | | Update fails at 50% | Power interruption or antivirus blocking | Disable AV temporarily, use stable power. | | Charger won’t turn on after update | Corrupted flash | Recover via bootloader: short two test points (contact HTRC support for exact pins). | | Erratic voltage readings | No factory reset after update | Perform “Restore Defaults” in menu. |
: Users have reported discrepancies between the "monitor" mode cell values and actual balance charge figures. Alternative Options : If you are looking for improved firmware features like LiHV support htrc t240 duo firmware update better new