Summary

18 items · 30–60 minutes

Why Simply Deleting Apps Isn't Enough

Most people assume that tapping "Factory Reset" wipes a phone clean. In reality, a reset without properly signing out of accounts first can leave your Apple ID or Google account locked to the device — making it nearly unusable for the next owner, and potentially leaving a door open to your data. The steps in this checklist are ordered deliberately: skipping or reordering them is where things go wrong.

Whether you're handing a phone to a family member or listing it for resale, the same risks apply. Your banking apps, saved passwords, email, and even your home Wi-Fi credentials may still be recoverable by someone with the right tools if the device isn't properly prepared. For a broader look at protecting your digital presence, see our complete online safety audit.

Back Up Your Data

Back up photos and videos to a cloud service (Google Photos, iCloud, or a computer) and confirm the backup completed successfully before proceeding. Must
Sync or export your contacts so they are accessible on your new device without manual re-entry. Must
Export or note any app-specific data — saved game progress, notes, or authenticator app codes — that does not automatically sync to the cloud. Should
Back up text messages if they contain anything you need to keep; some apps allow SMS export to your computer. Nice to have

Account Sign-Outs and Security Updates

Sign out of your Apple ID (iPhone: Settings > [Your Name] > Sign Out) or Google account (Android: Settings > Accounts) before resetting — this is the single most critical step. Must
Update two-factor authentication (2FA) for all important accounts so the old device is no longer listed as a trusted device or recovery method. Must
Remove the phone from your mobile banking and financial apps by logging into those accounts on a different device and deauthorizing it. Must
Sign out of streaming services (Netflix, Spotify, etc.) directly in each app, or use each service's website to remove the device from authorized devices. Should
Deregister your number from iMessage (iPhone only) via Apple's online deregistration tool if you're switching to Android — otherwise texts may not reach your new phone. Must

Physical Preparation

Remove your SIM card before handing over the device — your SIM holds carrier and contact data and belongs in your new phone. Must
Remove any microSD card if your phone has an expansion slot, as these can store photos, downloads, and cached data. Must
Clean the phone screen and body so the recipient receives it in good condition, especially if you're selling it. Nice to have

Factory Reset and Verification

Perform a full factory reset through the phone's official Settings menu (not a third-party app) only after completing all sign-out steps above. Must
Power the phone back on after the reset and confirm it shows a setup screen rather than your accounts — this verifies the reset was complete. Must
For iPhones, verify Activation Lock is off by checking that the device no longer appears in your iCloud device list at appleid.apple.com. Must
For Android phones, confirm Find My Device (Google) or the manufacturer equivalent shows the device as removed from your account. Should
If selling the phone, run the camera, speakers, charging port, and cellular signal briefly to document working condition for your own records. Nice to have

What You'll Need Before You Start

Having the right tools at hand makes this process faster and less frustrating. Most of these are things you already have — you just need to gather them in one place before you begin.

Required

Your current phone's charger

Keeps the battery above 50% throughout this process so the device doesn't power off mid-reset.

Required

A computer or tablet

Used to verify cloud backups, remove devices from accounts via browser, and export contacts or messages if needed.

Required

SIM ejector tool (or a paperclip)

Removes the SIM card tray from the device before handoff.

Required

Cloud storage account (iCloud, Google One, etc.)

Stores your backup of photos, contacts, and app data so everything is accessible on your next device.

Required

Authenticator app on a new or separate device

Ensures 2FA codes remain accessible after the old phone is wiped, preventing lockout from important accounts.

Don't Reset Before Signing Out

Running a factory reset while still signed into Apple ID or Google can trigger Activation Lock — a security feature that ties the device to your account and prevents anyone else from setting it up. The next owner would need your credentials to use the phone. Always sign out of platform accounts first, then reset.

Final Steps and Handing the Device Over

Once you've completed the checklist, take a moment to confirm a few things: your new device is fully functional and synced, the old phone shows no trace of your Apple ID or Google account on its settings screens, and the physical accessories (charger, case, original box if selling) are organized. If you're selling the phone, document its condition with photos beforehand.

A clean handoff protects both you and whoever receives the device. And if this process got you thinking about how you manage data across all your gadgets, our guide on organizing your digital life across devices offers a practical framework for staying in control going forward.

Your 2FA Setup Could Lock You Out

If your old phone was set as a trusted device for two-factor authentication — for email, banking, or other accounts — wiping it without updating your 2FA settings may lock you out of those accounts permanently. Before resetting, transfer your authenticator app codes to a new device and update recovery options on every account where the old phone was listed as a trusted device.

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