BC660K Unable to set band

Hi
When I attempt to set the band using AT+QBAND=8 I get ERROR response.
I have tried setting AT+CFUN=0 first.

The syntax from the manual:

AT+QBAND=<band_number>[,<band>[,<band>[,...]]]

So to set band 8 (just the single band), the command would be:

AT+QBAND=1,8

Thank you, I clearly can’t read.

That’s quite alright, we all do that sometimes.