problem with sim card

Official Hardware Retired GSM Shield

Topic		Replies	Views	Activity
Arduino GSM Shield not responding? GSM Shield	57	51632	May 6, 2021
GSM shield not working with tmobile SIM GSM Shield	14	15327	May 6, 2021
Arduino GSM Shield + SIM Telefonica not working GSM Shield	4	2870	May 6, 2021
Principiante con Arduino Uno R3 e GSM shield con antenna integrata Hardware	19	7063	May 7, 2021
problème shield GSM Français	19	6970	May 6, 2021