In this topic Jeffery from support team has explained command to lock 4G as following Please check follow descriptions, thanks Write Command: AT+QNWLOCK=“common/4g”,[[,],…] Num of cells : 0 ~ 20 freq: Frequency info of a cell pci: Physical Cell Identity code 0 success, Other failed Note: Only freq and pci supported by the module can be set.
My question is how I can get information of “Num of cells (0 ~ 20)”, “freq ( Frequency info of a cell )”, “pci ( Physical Cell Identity )”
Is there any command/utility to get these information?
Thanks for quick response! I tried command you suggested but I am getting an error.
AT+QCFG=“common/4g”
ERROR
Current firmware version flashed in Modem is:
EM12GPAR01A19M4G_BETA0723
Thanks for you reply. I verified your suggestion last Friday. The command you suggested has all the information I wanted. With that I successfully applied 4G lock.
Enable 4G lock:
AT+QCFG=“NWSCANMODE”,3
at+qnwlock=“common/4g”,1,2850,120
What I observed is, it automatically disabled lock after sometime. I got following print on serial interface after sometime.
+qnwlock=“common/4g”,0
Is it expected behavior ? As per my understanding lock should remain intact until we manually disable it.
Would you please give your comments regarding this behavior?
Unfortunately our remote team is on holiday for Monday and Tuesday so can’t do more experiments. I will have setup access tomorrow.
For our requirement we want to force modem to use 4G. We didn’t to force modem to any specific frequency and cell in 4G. That’s why Quectel confirmed that AT+QCFG=“NWSCANMODE”,3 command is enough for our requirement.