I recently purchased a used RAZR M for my wife. She enjoyed borrowing my work phone, so I figured she'd like this. Except I can't get the damn thing to switch to an LTE band. I've swapped sim cards and thrown mine in, same thing. No 4G. I've compared it to my work phone and the settings *look* to be correct. In the same room, my work phone gets LTE, so I know it's not a signal strength issue where I am.
I don't know the history of the phone itself. Would this be the result of it being switched to GSM use? Is this a radio problem? Is this a firmware problem? Is this a PEBKAC issue?
Keep in mind, this is on stock. I'm not too keen on being stuck on stock, I don't have a lot of choices with it being locked and on KitKat right now.
I'd appreciate any help/insight that y'all can offer.