Use Instructions

55
connection mode is printer mode or phone mode. If
you need to connect to the mobile APP, please
switch to phone mode. If the printer mode is
selected, press [Con] key will connect the printer
and press [Discon] key will disconnect the
Bluetooth device.
6） 【Language】: Sets the system language.
7） 【Delete Data】: Clear all data.
8） 【Update firmware】: After clicking this button,
a dialog box appears on the screen, which displays
“connect USB cable to device and PC.Copy
firmware,Press [Yes]”. When firmware is copied to
the instrument, press [Yes], and the instrument
program will be automatically upgraded.
6.6 How to connect mobile APP
1) Mobile phone with Android system:
A. Turn on Bluetooth. Mobile phones with Android
version 6 and above need to be authorized with
WeChat location information, while mobile phones
with Android version 10 and above need to turn on