If you bought The New iPad Verizon, “According to Apple : You are on Verizon, and you can’t change your network” , but it’s been recently discovered that you can change your Verizon iPad to AT&T. You can convert your iPad to AT&T network by using AT&T micro SIM, and you’ll also need to apply APN carrier settings.
A comment by a user on Mac Rumor Forum gained wide attention, apparently because he was able to use AT&T MicroSIM on The new Verizon iPad although Apple chose to restrict the device’s operation on other networks. Here’s what he had to say in his comment :
Big question on everyone’s mind buying the Verizon iPad was whether data from AT&Ts 3G network would work on this iPad, or if Verizon/Apple would block this.
I was one of the first to obtain a Verizon iPad and can happily confirm that this is allowed! I used my ATT iPhone 4S sim card and took out the Verizon sim, and data worked! You must apply the AT&T APN carrier settings before this works though.
Keep in mind that AT&T’s LTE network won’t work on the Verizon iPad due to hardware limitations, but Verizon iPad owners now have an awesome fallback wherever Verizon LTE is not available (and if you want free data with your iPad if you don’t need LTE)!
After all , It turned out to be quite simple. So, All you have to do, if you wanted to use a different SIM, is just adjust the Internet Settings, update APN setting accordingly, and here’s the video that was mentioned above :