How to identify the currently used network band in quectel modems using AT commands.
Specifically EG21 module or similar LTE modems - Quectel_EC2x&EG9x&EG2x-G&EM05_Series
Need to know which band of network am I currently registered to. Like 2G,3G,4G .
The following two AT commonds can be used:
Is there a sequence to use… Mean to ask that if these command should be used after AT,AT+CPIN?,AT+CREG?,etc
Please let me know if there is any sequence of sending commands before sending AT+QENG=“servingcell”
Many networks require the APN to be set correctly before network registration succeeds (for 4G specifically).
In such cases the AT+CGDCONT command can be used to set the APN. The APN value remains in modem memory through power-cycles.
I’m querying the APN in the init, so i could have this command after that, right?
There’s no need to set the APN if it’s already correct. In that case,
AT+QENG="servingcell" will return the band and the access technology in use.