Before You Trade In or Give Away a Phone: A Safe Handoff Checklist

Do not erase the old phone on arrival day

A new phone can look finished while important details are still missing. Apps may still be downloading, photos may be syncing, message history may be incomplete, and a banking or authentication app may need a separate sign-in or transfer. Keep the old phone charged, connected to Wi-Fi, and in your possession until you have used the new one for the tasks that matter.

Make a short checklist based on your actual life. Place and receive a call, send a text, open recent photos, look up a contact, sign in to email, test the camera, connect Bluetooth accessories, and open any app you depend on for work, health, travel, banking, or home access. A successful setup screen is not the same as a successful handoff.

• Calls, voicemail, text messages, and mobile data
• Recent photos and videos
• Contacts, calendars, notes, and files
• Email, banking, health, work, and smart-home apps
• Bluetooth devices, wearables, and vehicle connections

Confirm what the backup actually contains

Backups are important, but they are not identical copies of every app and every account. Google explains that Android backups can include apps, call history, contacts, device settings, and messages, while some app data depends on the individual app. Google also notes that a backup can take up to 24 hours to finish.

On an iPhone, create a current backup and complete the transfer before removing personal information from the old device. Do not manually delete synced photos, contacts, calendars, or other iCloud information while you are still signed in. Apple warns that manual deletion can also remove those items from iCloud and your other connected devices.

Give security apps their own transfer plan

Password managers, authenticator apps, passkeys, banking apps, and work profiles deserve separate attention. Some restore from a backup. Others require an export, a device-to-device transfer, a recovery code, or approval from the old phone. Open each important app on the new phone and confirm that you can complete the action it protects.

Before erasing the old phone, make sure you know the Apple Account or Google Account username and password associated with it, plus the screen-lock code. Google advises waiting 24 hours before a factory reset if the Google Account password was recently changed. That delay can prevent account-protection systems from treating the reset as suspicious.

• Password manager is unlocked and syncing
• Authentication codes work on the new phone
• Recovery codes are stored somewhere safe
• Banking and payment apps open successfully
• Work or school access has been reapproved

Move the phone number and connected devices

Confirm that your phone number and mobile data have moved to the new device. A physical SIM card may need to be transferred or removed. An eSIM may require a carrier activation process. Do not assume the old phone is ready to leave simply because the new one shows signal bars.

Disconnect or transfer devices that depend on the old phone. This can include a smartwatch, hearing aids, Bluetooth headphones, a vehicle, medical accessories, and smart-home controls. If you are leaving the Apple ecosystem for another phone, Apple also advises deregistering iMessage so messages are not routed to the retired device.

Erase the phone through its settings

Once the replacement has passed your checklist, use the phone's built-in factory erase process. On current iPhones, Apple directs owners to Settings, General, Transfer or Reset, then Erase All Content and Settings. If prompted about an eSIM, choose the option that matches whether the cellular plan has already moved. The erase process also turns off Find My and Activation Lock when the required account credentials are entered.

Android menus vary by manufacturer, so use the reset option in Settings and follow the device maker's instructions. Google recommends knowing the Google Account credentials and screen-lock code before starting, backing up first, charging the phone to at least 70 percent, and keeping a network connection available for the setup that follows.

Inspect the handoff before the phone leaves

After the reset, the phone should return to its welcome or setup screen without showing your photos, messages, apps, or home screen. Remove any physical SIM card, memory card, case, or accessory you intend to keep. If you are trading the phone in, follow the recipient's instructions for packaging and device condition.

Keep the trade-in receipt, shipping record, or recycling confirmation. If you are giving the phone to someone you know, let that person complete the opening setup with their own account. Do not sign back in to demonstrate the phone, because that can reconnect your information and device lock.