The new phone is working, the photos look familiar, and the old one is ready for a trade-in box. It’s tempting to tap Reset and move on.
I’d pause for one more check. Before you erase or hand over a phone, make sure the replacement can open your important accounts, receive the calls and messages you need, and access the files you meant to keep. Then follow the manufacturer’s transfer and erase instructions for the old device.
A home screen full of familiar app icons is a good start. It doesn’t prove that each app is signed in or that your old phone is no longer needed to approve a login.
Treat the handoff as two separate jobs
The first job is keeping your own access. The second is removing your information and ownership ties from the phone someone else will use.
Imagine you’re giving your old phone to a relative. Your email opens on the replacement, but an important account still sends its sign-in approval to the old device. Finding that out while both phones are on the kitchen table is much easier than finding it out after the old one has been erased.
My recommendation is to keep the old phone in your possession until the checks below are finished. Don’t erase it on a timetable that leaves you guessing about something you still need.
Make the replacement prove it works
Use this as a short handoff worksheet. Record what you checked, not passwords, recovery codes or screenshots of private information.
| What to check | A useful test before erasing | If it doesn’t work |
|---|---|---|
| Calls and messages | Make a call and receive a message on the replacement. Confirm the number you intend to keep. | Resolve the service transfer with your carrier. |
| Main email and password manager | Open them on the replacement and confirm you can get to what you need. | Keep the old phone available while you restore access through the provider’s official process. |
| Important account sign-ins | Try a fresh sign-in to an account you own, using its usual website or app. Check where the approval or verification code arrives. | Update the account’s approved sign-in method before removing the old one. |
| Authenticator or approval apps | Follow that app’s transfer instructions and test the accounts that depend on it. | Don’t assume installing the app moved the accounts inside it. |
| Photos, documents and app-specific records | Open a few recent and older items on the replacement or another trusted device. Check anything stored only inside a particular app. | Finish the transfer or make a separate copy before proceeding. |
A passkey, texted code and authenticator code are different ways of signing in. Moving a phone number does not, by itself, demonstrate that every other method has moved. Use each account provider’s instructions, and keep any backup codes somewhere protected that does not depend on the phone you are retiring.
If you discover a gap, our household account-recovery checklist can help you work through it. If the concern is missing pictures, start with the family photo backup guide. This handoff check is the final test before the old device leaves, not a replacement for either plan.
Remove the old phone the right way
Once you’ve checked the replacement, use the instructions for the old phone’s model and software version. A phone managed by an employer or school needs that organization’s handoff process; don’t remove its management yourself.
If it’s an iPhone
Apple’s sell, give away or trade-in instructions cover backup, transfer, account sign-out, erasure and removal from trusted devices. They also include an Apple Watch step if one is paired and an iMessage step if you’re moving to a non-Apple phone. The sign-out screens differ by iOS version, so use the current guide rather than a remembered sequence.
One easy mistake is deleting photos or contacts individually to “clean” the old phone while it is still signed into iCloud. Apple warns that those deletions can also remove the items from iCloud and connected devices. Use its device-erasure procedure after your checks instead.
For a phone using eSIM, coordinate the service transfer first and follow Apple’s instructions for removing the old eSIM profile when selling the device. That is different from removing a physical SIM card.
If it’s an Android phone
Google’s factory-reset guidance says a reset erases data from the phone and removes installed apps and their data. It points you to the device manufacturer for the exact steps. Check any removable memory card and physical SIM separately before the phone leaves your possession.
There is also an ownership check to consider. Google explains that removing your Google Account from the device turns off its device protection. If you reset a protected phone incorrectly, the next person may be asked for the previous owner’s account information. Follow the manufacturer’s sale or transfer sequence; don’t give the recipient your Google password to get around that screen.
If you have just reset your Google Account password, Google advises waiting 24 hours before a factory reset. Build that into your handoff rather than discovering it at the shipping counter.
Do one final check before it leaves
After the supported erase procedure finishes, check that the old phone starts at its initial setup screen rather than your home screen. If setup still asks for your previous account to release the device, resolve that through the manufacturer’s official instructions before handing it over.
The welcome screen is a useful checkpoint, not a substitute for completing the account-removal steps. Keep the sale, trade-in or recycling receipt, and do not include your passwords or recovery information in the package.
For a phone that won’t turn on or has a broken screen, stop and ask the manufacturer or a trusted repair provider about its official options. An erase you couldn’t complete should not be treated as a verified wipe.
A small pause can save a much bigger problem
You don’t need to check every setting in one sitting. Start with the accounts and information you would struggle to lose, prove the replacement can use them, and then work through the old phone’s handoff instructions.
If you’re unsure where your household’s access depends on one device, book a Home IT conversation. We can discuss the setup and the help you need. Device transfers, repairs and any hands-on work should be confirmed in scope; they are not automatically included in every Home IT plan.