Visit the official Shenzhen Haitan Technology (HTRC) website and download the latest firmware .bin file and the HTRC Firmware Update Tool .
The unit will restart autonomously once the ninety-second update process is complete. Troubleshooting Common Issues
Power on your charger and look for "System Info" in the main menu to see your current version (e.g., v1.2.1). Htrc T240 Duo Firmware Update
Wait approximately 45 seconds for the process to finish. Do not disconnect the power or cable during this time.
Place the .bin firmware file directly into the root directory (do not use folders). Visit the official Shenzhen Haitan Technology (HTRC) website
Ensure your Windows PC has .NET Framework 3.5 (including 2.0 and 3.0) enabled via the Windows Control Panel .
Double-check the official HTRC download portal as links can occasionally be moved during site maintenance. Wait approximately 45 seconds for the process to finish
If your screen becomes unresponsive after or during use, it may be a physical ribbon cable issue rather than firmware. Reseating the internal ribbon cable often fixes dead zones on the left side of the screen.
Newer versions (like v2.3.0) can improve balance accuracy by up to 76% , ensuring even cell wear and longer battery life.
There are two primary methods to update your charger, depending on your version and available hardware. Method 1: Update via PC (Recommended)
Visit the official Shenzhen Haitan Technology (HTRC) website and download the latest firmware .bin file and the HTRC Firmware Update Tool .
The unit will restart autonomously once the ninety-second update process is complete. Troubleshooting Common Issues
Power on your charger and look for "System Info" in the main menu to see your current version (e.g., v1.2.1).
Wait approximately 45 seconds for the process to finish. Do not disconnect the power or cable during this time.
Place the .bin firmware file directly into the root directory (do not use folders).
Ensure your Windows PC has .NET Framework 3.5 (including 2.0 and 3.0) enabled via the Windows Control Panel .
Double-check the official HTRC download portal as links can occasionally be moved during site maintenance.
If your screen becomes unresponsive after or during use, it may be a physical ribbon cable issue rather than firmware. Reseating the internal ribbon cable often fixes dead zones on the left side of the screen.
Newer versions (like v2.3.0) can improve balance accuracy by up to 76% , ensuring even cell wear and longer battery life.
There are two primary methods to update your charger, depending on your version and available hardware. Method 1: Update via PC (Recommended)