(if “BETTER” is a genuine improvement)
– Turn charger off. Hold the “Stop/Start” button (or “Enter” depending on version) while connecting USB. – Release when screen says “DFU Mode” or “Upgrade Ready”. Htrc T240 Duo Firmware Update BETTER
[Windows PC] ----(Mini-USB Cable)----> [Rear Mini-USB Port on T240 Duo] Step 1: Gather the Required Gear Has anyone used this charger? (HTRC C240) - Page 4 (if “BETTER” is a genuine improvement) – Turn
: Launch the HTRC Firmware Update Tool and select the .bin firmware file you downloaded. There is no official, publicly accessible firmware update
Typically requires the CH340 or CP210x virtual COM port driver, depending on the internal chipset revision.
There is no official, publicly accessible firmware update provided by the manufacturer (HTRC) for the T240 Duo on their main website or common support channels. The device is typically sold as a "closed-box" consumer electronic.