Selling your old phone is one of the easiest ways to recoup some value and free up a drawer full of forgotten tech. But before your device changes hands, a little preparation goes a long way. Done properly, it protects your personal data, keeps your accounts secure, and helps you command a stronger price. Rush it, and you risk handing over private photos, locking the next owner out, or leaving money on the table.
Here is a clear, step-by-step checklist to get your phone sale-ready, whether you own an iPhone or an Android.
1. Back Up Your Data First
Once you wipe your phone, everything on it is gone for good. Before you do anything else, make a complete backup of your photos, contacts, messages and files.
- iPhone: Go to Settings > [your name] > iCloud > iCloud Backup and tap Back Up Now. Alternatively, connect to a Mac or PC and back up locally through Finder or the Apple Devices app.
- Android: Open Settings > Google > Backup and tap Back up now. Photos sync automatically if Google Photos backup is switched on.
Give the backup time to finish and confirm it completed before moving on. If you are switching to a new handset, this is also the file you will restore from.
2. Sign Out of Your Accounts
This is the step most people skip, and it is the one that causes the most trouble. Modern phones have anti-theft locks tied to your account. If you leave them active, the device may be useless to the buyer and traceable back to you.
On an iPhone
- Turn off Find My iPhone: Settings > [your name] > Find My.
- Sign out of your Apple ID: Settings > [your name] > Sign Out. This also removes the Activation Lock.
- Deregister iMessage: Settings > Messages > iMessage (off). Miss this and texts from other iPhones may not reach you on your new device.
On an Android
- Remove your Google account: Settings > Accounts > Google > Remove account. This clears Factory Reset Protection.
- Sign out of Samsung, Xiaomi or other manufacturer accounts if you have one.
- Log out of banking, email and social apps for good measure.
3. Remove Your SIM and SD Card
Your SIM holds your number and, on older cards, some contacts. Any microSD card may store photos and downloads. Both should stay with you, not the buyer.
- Use the ejector tool (or a paperclip) to pop out the SIM tray.
- Remove any microSD card from the same tray or the dedicated slot.
- If you are keeping your number, contact your network about switching to a new SIM or eSIM.
4. Perform a Factory Reset
With your accounts signed out and cards removed, you can now wipe the device. A factory reset restores the phone to its out-of-the-box state and erases your personal data.
- iPhone: Settings > General > Transfer or Reset iPhone > Erase All Content and Settings.
- Android: Settings > System > Reset options > Erase all data (factory reset). Wording varies slightly by brand.
On modern iPhones and Androids, data is encrypted by default, so a factory reset is a genuinely secure wipe rather than a surface-level delete. When it finishes, the phone should boot to the initial setup screen, exactly as a buyer would expect.
5. Clean the Device Properly
Presentation matters. A phone that looks cared for sells faster and for more. Use a soft, lint-free microfibre cloth to remove fingerprints and dust from the screen and body. For stubborn grime, lightly dampen the cloth, never spray liquid directly onto the phone. Gently clear the charging port and speaker grilles, and remove any old case or screen protector unless you are including it in the sale.
6. Gather the Box and Accessories
Original packaging and accessories add real value. Round up whatever you still have:
- The original box
- Charging cable and plug
- Earphones, if they were supplied
- The SIM ejector tool and any paperwork
Even a scuffed box signals a well-kept device and can nudge your price up.
7. Check the IMEI Is Clear
Buyers and reputable retailers will check that a phone is not blacklisted, reported lost or stolen, or still tied to a finance agreement. Dial *#06# to display your IMEI number, then confirm your handset is fully paid off and not blocked. A clear IMEI is essential for a smooth, trustworthy sale, and any legitimate buyer will insist on it.
A Simpler, Safer Way to Sell
Following these steps protects your data and helps you get a fair price. If you would rather skip the marketplace hassle and the wait for a private buyer, selling to a specialist is often the easier route. At Sell Phone Store, every device we take in is fully tested and graded, and every phone we sell is backed by a warranty and a straightforward returns policy, so you can trade with confidence on both sides of the deal.
Ready to move your old handset on, or upgrade to a refurbished one? Browse our full range at /collections/all and find your next phone today.
