HL7588 can not query or set +KAAT

I am trying to disable automatic attach for HL7588 but it returns error:

AT+KAAT?

+CME ERROR: 100


AT+KAAT=0

+CME ERROR: 100

Hi akamary,

Which FW are you using? As I know, +KAAT command is implemented on FW RHL75xx.A.2.14.

Thanks,

Mine ends in 2.13 that seems to explain why… Thanks.