What Should I Do with My Phone Before I Sell It? Whitson Gordon — Dear Lifehacker, I’m upgrading my phone and selling my old one on eBay. How do I make sure all my personal data is off of the phone before I sell it off to someone else? Sincerely, Particular About Privacy Dear Particular, It’s surprising how many people sell their phones without doing anything to remove private data. Selling your phone to a stranger as-is gives that stranger access all your music, email, text messages, and other data for a few hundred dollars. To make sure your private data’s safe, you’ll want to do a full wipe of your phone before you sell it off. This is actually very easy to do, on both the iPhone or Android. Here’s how: Read more at gizmodo.com