I just got the iPad Pro carrier unlocked. I have T-Mobile and Verizon data plans and figured why not try and see if both can be used. Inserted my Verizon SIM in the slot and used the embedded SIM for my T-Mobile plan. They both work! I was able to switch back and forth on the fly. Although the screen tends to get jumpy when it's in the process of switching SIM cards.
[doublepost=1459541575][/doublepost]Sorry, I forgot to attach the other screenshot
[doublepost=1459541575][/doublepost]Sorry, I forgot to attach the other screenshot