I just bought a Chateau LTE12. It complains “SIM not present”. I have to use a nano sim in the adapter provided by the operator (I know that this is not recommended, but the SIMS from all operators here in the Netherlands use this format). Neither of the sims I tested is recognized. Are there settings for the SIM that I missed or is the Chateau defective? I initially had some problems so I had to reset the device, but it ended up DHCP client mode. Could this be related?
The device and the LTE firmwares are all updated.