First of all as a newbie, Hi. I know absolutely nothing about any Apple products, I'm a PC guy. My wife has an iPad2?-16Gb RAM. A1396 is the number on the back. Not only that, but her iPad is completely in Thai, no English language at all. The iPad is three years old. The mobile connection has stopped working. Checked with the mobile company (three times now) who say it's wotking, nothing wrong. Went to the local Apple reseller. They looked at it, didn't open it at all. Did some sort of reset (I don't know what exactly) and said it was a problem with the GSM part of the unit and it couldn't be repaired, so we'd have to buy a new iPad. Can they tell that, just by resetting it, and without checking, for example, if the sim has become dislodged? Would they be able to tell the sim is connected to the network? I don't want to sound untrusting, but living in Thailand I know from bitter experience about trying to get a correct answer to a problem.