Force 5G on SIM8200EA-M2

Question

I've been having problems getting a 5G only connection using waveshares https://www.waveshare.com/wiki/SIM8200EA-M2_5G_HAT for the raspberry pi.

Anyone know the the appropriate AT-commands ?

Answer 1

I am also using this 5G module but with Jetson Nano and Windows. To force 5G, run this command.

AT+CNMP=71  //if your module green led turns off using this command, run the following command
AT+CNMP= 39 //AT command for 4G (LTE)

I never get 5G on my module.

Answer 2

You can get information about which access technology that is used with the AT+CREG network registration command (AcT parameter) and you can control which to used with the AT+COPS command.

In your case, the manufacturer documentation is linked as "SIm8200 Series AT Command Manual" on the wiki page you linked, and that should be your primary source of information. The commands are standardized by 3GPP in 27.007 so you could have a look there as well.

PS Make sure you properly understand how to send and read and parse AT command lines and response lines.