iPad Pro 10.5 + 4G LTE no embedded sim

Thanks but it's not as easy as reading Apple Support Documents. The iPad Pro 10.5 has an embedded sim on the logic board and a nano sim slot similar to other Apple devices. The embedded sim should be useable with or without a carrier's nano sim installed. On my machine, which I purchased used from Gazelle, it is not useable nor is even viewable in Cellular Settings.

After a long day with Apple tech support there is no apparent hardware problem. It appears the embedded sim has been de-activated and cannot be turned on by Apple or on the device itself. One tech website reports that certain cellphone carriers, i.e., Verizon, who sell Apple iPad Pro machines in their shops de-activate the embedded sim somehow and leave only the nano sim slot active to prevent owners from using other carrier's networks. It appears that's the case with my machine. Apple tech support indicates the IMEI was originally assigned to Verizon. Even though the Verizon nano sim was de-activated the embedded sim was not apparently.

Verizon tech support and store techs who I contacted indicate they do not lock sims but they had no direct knowledge of the embedded sim in the iPad Pro series. They did check the IMEI of my machine and indicate it was de-activated from their network. In a total Catch-22 situation, Verizon will not discuss further without the actual account holder contacting them but they won't give me information on who that is.

So buyer beware! If you purchase a used iPad Pro with an embedded sim from a reputable seller but can't locate the original owner you might loose the capabilities of the embedded sims which are meant to provide increased customer flexibility and choice in network carriers. the nano sim slot remains useable if the machine is otherwise unlocked.