Preparation: One PBI-F3, one EC25-E and one SIM card
Image name: bianbu-24.04-desktop-k1-v2.1-release-20250124144655.img
Link:Index of /image/k1/version/bianbu/v2.1
Insert the SIM card and the EC25-E module onto the BPI-F3, and then power it on to start.
Use the instruction query module to check the status.
lsusb
Use the AT command to query the module and SIM card status
AT+CGMM //Module status
AT+CPIN? //SIM card status
Use nmcli to enable the module for dialing.
root@k1:~# nmcli connection delete wwan
成功删除连接 "wwan" (cf521d55-c9b0-48d3-96b7-d544cee4b054)。
root@k1:~# nmcli connection add type gsm ifname "*" con-name wwan apn cmnet
连接 "wwan" (cc1953ac-27d9-4bed-98c7-2256c6c6135a) 已成功添加。
root@k1:~#
root@k1:~#
root@k1:~#
root@k1:~# nmcli connection up wwan
连接已成功激活（D-Bus 活动路径：/org/freedesktop/NetworkManager/ActiveConnection/3）
Then you can see that the wwan0 interface has been assigned an IP address.
Then, by using the ping command to test the external network, it can be seen that the system is now able to access the internet normally.
