Key Takeaways
Why This Process Matters
Handing off a phone without properly wiping it is one of the most common ways personal data gets exposed. Accounts left signed in, saved passwords in browsers, payment methods stored in digital wallets, and synced contacts can all remain accessible on a device after a simple deletion of apps. A factory reset addresses most of this — but only when done in the right order.
Whether you're selling the device, trading it in, or giving it to a family member, the steps are essentially the same. The goal is to leave the phone in a clean, unlocked state with none of your personal data remaining. If you're planning a trade-in afterward, it's worth understanding how those programs work — see how trade-in programs evaluate devices before you commit.
Your Data Cannot Be Recovered After a Reset
A factory reset is irreversible. Once completed, photos, messages, contacts, and app data stored only on the device are permanently gone. Confirm your backup is complete and accessible on another device before you begin the reset process.
Before You Begin
Gather what you'll need and set aside enough uninterrupted time — rushing through this process is how steps get skipped. A typical full backup and reset takes between 20 minutes and an hour depending on how much data is on the device and your Wi-Fi speed.
What you will need
Google Account or Apple ID credentials
Required to sign out of the device's linked account before performing a factory reset.
Cloud storage (Google One or iCloud)
Used to back up contacts, photos, app data, and settings before wiping the phone.
SIM card ejector tool or small pin
Used to physically remove the SIM card from the device tray before handoff.
Computer with USB cable
Optional method for creating a local backup of photos or files before wiping.
Step-by-Step: Wipe and Prepare Your Phone
Follow these steps in order. Each one builds on the last, and skipping ahead — especially to the factory reset — can create problems that are difficult to undo.
Back up your data
Before anything else, make sure everything you want to keep is safely copied elsewhere. On an iPhone, go to Settings > [your name] > iCloud > iCloud Backup and tap Back Up Now. On Android, go to Settings > System > Backup and confirm Google Backup is turned on and current. You can also manually transfer photos to a computer or external drive.
Transfer or save anything not covered by cloud backup
Some content doesn't sync to the cloud automatically: downloaded music, offline maps, locally stored documents, or app data from games. Connect your phone to a computer and move these files manually, or use a transfer app. Check your downloads folder and any app-specific storage.
Sign out of your primary account
This is the most critical step for security. On iPhone, go to Settings > [your name] and scroll down to Sign Out — this removes your Apple ID and disables Activation Lock, which would otherwise prevent the next owner from using the device. On Android, go to Settings > Accounts, select your Google account, and tap Remove Account.
Deregister iMessage (iPhone only)
If you're switching to Android or passing the phone to someone who will use a different number, deregister iMessage at appleid.apple.com under the iMessage section, or use the Settings > Messages > Send & Receive menu. Skipping this step can cause text messages from other iPhone users to route to your old device rather than your new one.
Remove your SIM card and microSD card
Use an ejector tool or unfolded paper clip to pop out the SIM tray. Keep the SIM card — you'll need it for your new device or to transfer your number. If the phone has a microSD card slot, remove that card as well. These physical cards are not wiped by a factory reset.
Perform a factory reset
On iPhone, go to Settings > General > Transfer or Reset iPhone > Erase All Content and Settings. On Android, navigate to Settings > System > Reset options > Erase all data (factory reset). The phone will reboot to its out-of-box setup screen, ready for the next user.
Confirm the reset and do a final check
Once the reset finishes, the phone should display a language or welcome screen. Scroll through briefly to confirm no accounts remain linked and your name doesn't appear anywhere. If prompted to sign in to an Apple ID or Google account, that's a sign the previous sign-out didn't complete — power off the device and revisit Step 3.
Order Matters — Don't Reset First
Running a factory reset before signing out of iCloud on an iPhone leaves Activation Lock active. The device will appear wiped but will be locked to your Apple ID permanently until you authenticate — which can be a significant problem if you've already transferred ownership. Always sign out before resetting.
After the Handoff
Once the phone is out of your hands, there are a few loose ends worth tidying. Remove the device from your trusted devices list in your Apple ID or Google account settings. If the phone was linked to a payment service like Apple Pay or Google Pay, verify it no longer appears in that account. Update any services that used the device for two-factor authentication.
If the person receiving the phone is setting up a smartphone for the first time, our guide on everything to know before setting up a first smartphone covers the basics clearly. And if you want to lock down privacy settings on your next device from day one, this privacy settings checklist is a practical starting point.
Think About Privacy Before the Sale
Beyond accounts, consider what else might be tied to your number or device — two-factor authentication codes, banking apps, or loyalty accounts. Update your 2FA phone number on important accounts before you hand over the device. For a broader look at data exposure, see privacy settings worth reviewing.