I have an iPad Air 64gb LTE from ATT and for some reason it will not connect through ATT for internet. I went to the ATT store and the said it was a faulty sim card. They changed the sim card twice, and then told me it was a hardware problem and I needed to take it to the Apple store to get a new one. Problem is that I have a Zaggs HD screen protector on it that I paid $50.00 for, including installation from Best Buy. If they give me a new iPad, I am going to lose the screen protector. I wonder if Apple will pay for another one. Anyone have any advice or have had the same problem? TIA