i am using an EVK-N211 module and im running into problems when using the commands +CIMI +CCID and +CFUN=1 (and probably many more) which all result in +CME Error 4. I want to check if the SIM Card is accepted by the module and afterwards i would like to register the module to the PLMN.
I am using an NBIoT SIM by 1NCE (Telekom Germany) and all these commands work with the Quectel BC95 Module. I can register to Telekom Germany and i can detect the IMSI. The SARA-N211's version for Hardware and Firmware are 6.57, A9.06. I recently updated to this firmware version.
I cannot find a level translation for the SIM on the EVB-WL3 and i am measuring 1.8 V as a supply voltage of the SIM Card holder. I do not have a schematic/pinout of the EVB-WL3 so i am not sure if this measurement is correct. Is it possible that the EVB-WL3 only supports 1.8V SIM Cards? Otherwise i am out of luck with my Problem so far.
Thank you in advance for any tips