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Upgrading to the iPhone 17 or Galaxy S25? Do These 4 Things Before Selling Your Old Phone

If you're in the market for a new phone, you have tons of great options. But what do you do with the old one? Here's how to get it ready for recycling, selling, or trading in—safely and securely.

 & Kim Key Senior Writer, Security

Our team tests, rates, and reviews more than 1,500 products each year to help you make better buying decisions and get more from technology.

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There are lots of great new phones on the market right now. Apple’s latest iPhones just launched in September, Google's latest Pixels came out in August, and Samsung’s Galaxy 25 series has been available since January. If you're planning a jump to a new device, it might be tempting to toss your old phone in a drawer and forget about it. But why not sell or trade it in to recover some of your upgrade costs? Just be sure to back up your data and reset the phone to factory settings first. I’ll walk you through the steps.


How to Wipe Your Phone Before Selling It

Be sure to follow this checklist each time you recycle, sell, or trade in your old phone. Bonus: These steps also work for tablets.

(Credit: Apple/PCMag)

1. Back Up Your Data

Before you do anything else, back up your device. We have instructions for Android and iOS to get you started. To keep any sensitive personal data, photos, or videos safe, consider saving them to an external hard drive or secure cloud storage service first.

2. Disable Lost or Stolen Phone Tracking

Next, turn off Apple's and Google's Find My settings so you don't continue to receive alerts about the device after you've removed it, and more importantly, so whoever ends up with the device can set it up for themselves.

3. Remove the Phone From Your Accounts

Visit your antivirus app or password manager app's Settings menu and remove the old device from your list of approved devices. You may want to do the same for any other web service that tracks your devices, such as a VPN or streaming app. This prevents new owners from accessing information about you, such as your name, birth date, and home address.

4. Completely Erase It

If you’re using iOS, navigate to Settings > General > Transfer or Reset iPhone/iPad. Once you are sure you have backed up all of the data, follow the prompts to erase your content and settings. Android users can find the Reset option in the device's Settings menu. Again, ensure that you back up all your data before proceeding. In both cases, this returns the device to its factory default settings, which means all your apps, data, and even software updates are gone.

Finally, if you want to avoid the trade-in hassle altogether, you can use your old phone as a wireless webcam or explore this list of alternative uses for it.

About Our Expert

Kim Key

Kim Key

Senior Writer, Security

My Experience

I review privacy tools like hardware security keys, password managers, private messaging apps, and ad-blocking software. I also report on online scams and offer advice to families and individuals about staying safe on the internet. Before joining PCMag, I wrote about tech and video games for CNN, Fanbyte, Mashable, The New York Times, and TechRadar. I also worked at CNN International, where I did field producing and reporting on sports that are popular with worldwide audiences.

In addition to the categories below, I exclusively cover ad blockers, authenticator apps, hardware security keys, and private messaging apps.

The Technology I Use

I like testing new software for work, but I'm less "plugged in" to the internet than I used to be. I tend to read app privacy policies to see what kind of data companies collect, and as a result of those findings, I don't use many mobile apps. In a similar vein, I was an early adopter of many social media platforms, but now I’m just an infrequent Reddit lurker.

I'm a gear junkie. I split my work time between a 2021 Apple MacBook Pro and a Lenovo ThinkPad. I shoot most of my videos for PCMag using a Canon M50, a Sony A7iii, and a Sony a6000. I edit videos using Final Cut Pro and Adobe Premiere Pro.

I write all of my words for PCMag either in the MS Notepad app on my ThinkPad or the Notes app on my iPhone 12 mini. If I'm traveling and working, I use my iPad to write short articles or take notes.

My dad built me my first computer sometime in the late '90s, and I used it for reading Encyclopedia Britannica and writing Sailor Moon fan fiction. My first phone was the ubiquitous Nokia candy bar.

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