I am sure it is something that I am doing wrong but I am using a raspberry Pi zero W along with the EC25_e GSM module and the sixfab Raspberry Pi 3G-4G/LTE Base Shield V2.
GPIO4 is triggered by a PIR module and a photograph is taken and then emailed over the GSM system. If I use the mini PCIe_Evalb V1.05 everything works exactly as expected. The problem comes when I plug the sixfab board in and no GSM connection is made. Please note the camera doesn’t operate unless a GSM signal is logged on.
I know the SIM card works along with the camera, antenna PIR and the Pi.
Any suggestions are gratefully accepted if it stops me going bald by pulling my hair out