Hi,
UCI show command through SMS will not work as it will not be able to send you the SMS containing so many characters and it will be a mess even if it would be sent as there's not formatting in the SMS message.
Answering your questions about uci set commands, could you please tell me the full syntax you use in SMS message?
It should be " adminPassword uci set [email protected][1].auto_apn='1' " or something similar, depending on what you want to do.
So before sending SMS you will have to use uci show in your CLI to know what exactly to send through SMS next time.
EB.