18. How to enter PHONE mode and what is its use?

Phone means mobile phone. The purpose of this switch is to connect the mobile phone for USB decoding.

Associated with the switch is the USB interface in the middle of the machine, and the switch controls the power access to the USB port.

Turn the switch to "ON" and connect the USB port to the mobile phone for decoding. The Q15 will not draw current from the mobile phone from the USB port, but will be powered by the built-in battery.