EM12G At+qcfg="band",error

IoT Modules LTE-A Module
1

Mon Jul 6 00:58:20 2020 : /dev/ttyUSB2 AT+QCFG=“band”,0,7FFFFFFFFFFFFFFF,0
ERROR

Mon Jul 6 00:59:46 2020 : /dev/ttyUSB2 AT+QCFG=“band”,0,7FFFFFFFFFFFFFFF,0,0
OK
But check it it’s wrong
AT+QCFG=“band”
+QCFG: “band”,0x5af0,0x3ffffffdf3fff,0x1
OK

why?

2

Dear Jiang:
Thanks for your inquiry in Quectel forum.
We do not recommend that you use "7FFFFFFFFFFFFFFF“ to set full band，because some band not supported with this module. You can backup the default value of LTE band, then re-writer it into the module by at, the module will recover to supported full band.

3

Thank you for replying me. I have set up to receive only the B66 band, so I can’t know what the default value is or can you tell me what the default value is? My model is em12g,

4

Dear Jiang,
You can use follow value if you recover to original LTE band status, thanks
+QCFG: “band”,0x5af0,0x2000001e0bb1e39df,0x0

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