Here are three ways you can warranty used tech:
1. Transfer a currently existing warranty: Some companies will allow you to extend or change over an existing factory warranty if the original warranty holder is willing to hand it over. Simply ask your seller to call the manufacturer in advance of the sale and request a transfer of warranty. If they aren't willing to call for you, ask them for a copy of the original receipt, so you have proof that the product is within its warranty period when you retained ownership.
3. Check with your credit card company: Some credit card companies will extend the warranty on a product for a small fee if you have a copy of the original receipt. For example, American Express will extend warranties on purchases made with their card. MasterCard offers purchase assurance on any products that are purchased with the card that turn out to be defective for up to one year.
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