I have had this exact issue. I had an AT&T and Verizon nano-SIM. Tested both in another MX67C and they both worked, but they both would not work in the spare unit I had. Contacted support, and they told me that the device was not detecting anything, however I could clearly see the 3 metal marks making contact on the nano-SIM cards.
Ended up having to RMA the unit, and the new unit worked just fine.
I'm going to bet this is what your running into. I also had another unit where I could hear something rattle inside, but the built-in cellular did work, but I had to toggle it on/off a few times to finally get it to register.
Almost seems like a hit or miss scenario.
Contact support is your best bet.
Ended up having to RMA the unit, and the new unit worked just fine.
I'm going to bet this is what your running into. I also had another unit where I could hear something rattle inside, but the built-in cellular did work, but I had to toggle it on/off a few times to finally get it to register.
Almost seems like a hit or miss scenario.
Contact support is your best bet.
Well thankfully the RMA process is super easy and they got me a new unit within like a day or two.
