Firmware update steps: When the machine is turned off and the charging power is unplugged, first press and hold the "" key, then use the Type-C cable to connect the spot welder and the computer. At this time, the spot...

Firmware update steps: The user holds down the "A" button and does not let go. After connecting the PC and HT140 using USB, the "UPDATE" interface appears on the soldering iron screen. Paste the downloaded firmware in the computer disk,...

Firmware update steps: The user holds down the "A" button and does not let go. After connecting the PC and soldering iron using USB, the "UPDATE" interface appears on the soldering iron screen. Paste the downloaded firmware in the computer...