I recently purchased a 2nd hand ipad 4 (wifi + Cellular). Only problem is I don't have a sim card for it and I don't know who the network provider is? Will any carrier micro sim work? If not, how do I find out the correct provider?
Here's an educated guess how to find the original carrer:
Try Settings > General > About. Is there a "Carrier" setting there? Is there a "Network" setting there? One or both may hold your answer.
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