When launch the APP, it will give two images on how to use VVDI mini key
tool for the first time.
Start: Press and hold power button 1 second.
Shutdown: Press and hold power button 4 seconds.
The machine comes with Bluetooth Status button and Battery level button
as well as firmware version.
Detect transponder
Press and hold power button 1 second to stitch.
Frequency test: press and hold power button 2 seconds to switch.