I have a Quectel M10 GSM Shield M10E-04-NCH-STD.
The module answers all SSL/HTTPS related functions with CME ERROR 100, i.e.
AT+QSSLCFG=“sslversion”,1,4
+CME ERROR: 100
AT+QSSLCFG=“seclevel”,1,2
+CME ERROR: 100
AT+QSECWRITE=“RAM:ca_cert.pem”,1460,100
+CME ERROR: 100
It seems as if secure HTTP functions are disabled/not supported by the firmware on board. Also, my module could be one of the earlier / developer versions, because it powers on only when I hold the POWER button for a few moments.
Am I missing something? Or perhaps is there a firmware for this module that I can download and give a try, which supports these functions?