Hello, I tried all the examples of the MKRGSM library and I have the same problem each time. The modem does not respond correctly to AT + CPIN? I receive ERROR systematically after AT+CPIN? My SIM card does not have a PIN, so I used #define SECRET_PINNUMBER "". I also tried gsmAccess.begin(NULL)…

MKR1400 AT+CPIN? Problem

Jacks-Pixels February 26, 2018, 10:10pm 17

I face exactly the same situation !!
Is there any explanation of the problem ???

Topic		Replies	Views
GSM MKR 1400 CPIN Error MKRGSM1400	2	940	May 7, 2021
MKR 1400 MKRGSM1400	13	8540	May 7, 2021
MKR 1400 modem died? MKRGSM1400	4	1751	May 7, 2021
Trouble accessing SIM card with MRK GSM 1400 MKRGSM1400	3	1048	September 14, 2022
MKR1400 SMS issue MKRGSM1400	7	4157	May 7, 2021