DH20 Pro Support firmware update

Instructions For Use
*Take note to fully charge the battery before use*
1. To turn on – Long press button for 3 seconds until a sound is heard.
2. To turn off – Long press button for 3 seconds until a sound is heard.
3. To change power setting – Short press button until a beep sound is heard and see the corresponding LED indicator for setting. (See diagram below)
4. Auto Power Off – After no activity for 15 minutes the unit will automatically shut down.
5. To output power using USB – Unit will automatically output power once USB plug is connected. Once power output current is less than 50mAh the unit will automatically cut power output. Short press button to resume power output.
6. Soldering operation – Start with level 1 setting to solder, unit will start soldering after 0.5 seconds once it detects item. Power setting can be adjusted to suit the soldering job. In the event of unit going into current protection mode and reboot to cool down, soldering can continue via USB output.
7. Unit health status warning – In the event of the unit malfunctioning, a constant beep will sound off.
8. Firmware update – BIFRC will constantly work to enhance the firmware of the unit. Please kindly check our website for updates.