It is better to bring it to apple store and have them do the checks and everything.
Hilarious! But seriously if you aren't tech friendly then don't buy used the risk is too great! If you must buy used find someone you trust who knows to help you with your purchase. Good luck :)
They will assist with items purchased from the store, not items purchased via 3rd party.
Don't buy a used Mac.
I don't think they will help you with equipment that you didn't get at Best Buy.
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