How to config 4G module for rk3288 series Debian9

How to Config 4G-module

STEP 0 : Power off the device, then insert 4G module and SIM card.

NOTE : Make sure the device is power off before insert 4G module and SIM card, 

otherwise the device、4G module and/or SIM card may be damaged.

STEP 1 : Power on the device, Click network connection icon ,

then choose "New Mobile Broadband connection".

then you will see the following window, click "Next" button to the next step.

STEP 2 : Choose Provider's country or region of the SIM card you insert in STEP 0.

STEP 3 : Choose or Set the Provider's name.

STEP 4 : Choose or Set APN.

STEP 5 : Confirm your config and finish.