Troubleshooting - SimCom SIM8202G-M2 Manual

## Raspberry Pi OS
sudo apt install speedtest-cli
speedtest # or use speedtest_cli
or
## OpenWRT
opkg update
opkg install python3
opkg install python3-pip
pip install speedtest_cli
speedtest # or use speedtest_cli

Troubleshooting

Check if the module detects SIM:
AT+CPIN? # Should return READY
Check if the module is registered to the network:
AT+CEREG? # Should return 0,1 or 0,5
Check if the APN is correct and has an IP: AT+CGCONTRDP?
AT+CGCONTRDP # Should return APN details and IP address.
5G Network Speed Test
In the speed measurement part, because the Raspberry Pi comes with a Gigabit Ethernet
port, and there are few USB network cards above Gigabit, we use the SpeedTest For
Python tool to perform speed measurement by the commands. Connect to the terminal of
OpenWrt and enter the commands one by one to measure the speed:
## OpenWRT
opkg update
opkg install python3
opkg install python3-pip
pip install speedtest_cli
speedtest # or use speedtest_cli