I have a couple M35 modules inside a unit. They are on different revisions. When I try to execute a USSD command on modules with the revision: M35AR01A30 it works fine, but whenever I do the same command on: M35AR01A36 it gives me the following error:
+CME ERROR: 100
I’ve tried all possible ways to send the USSD command but all give this error. So I assume its a bug in the M35AR01A36 revision. Is there some way to downgrade these to M35AR01A30?
Thanks in advance!