We are using EC20 and EC25-E for our project , the problem iam facing is the SIM is getting registered and connection coming up and data transfer take place but SIM is getting down frequently and unpredictably . can you please suggest how to troubleshoot and solve this issue .
Hi @haridask
I think we can check whether it is related to SIM card or slot by crossing different SIM cards and measuring USIM_VDD pin voltage.