Summary

18 items · 30–90 minutes

Why Preparation Matters Before a Device Changes Hands

Handing off a smartphone, tablet, or laptop without properly preparing it is one of the most common — and consequential — tech mistakes people make. Personal data, saved passwords, payment methods, and linked accounts can all remain accessible to whoever receives the device next. Beyond privacy, many platforms implement activation locks that can render a device unusable if the previous owner's account is still attached.

Whether you're selling on a resale platform, donating to a school or charity, or dropping a device at an electronics recycling point, the preparation steps are largely the same. Managing accounts across devices is an ongoing task, but the offboarding process deserves its own dedicated attention. This checklist walks you through every stage, from the first backup to the final wipe.

Back Up Your Data

Back up photos, videos, and documents to a cloud service or external drive before doing anything else. Must
Export or save any app-specific data (notes, game saves, authenticator app codes) that may not be included in a standard backup. Must
Verify the backup completed successfully by checking timestamps and spot-testing a few files. Must

Sign Out of Accounts and Services

Sign out of your Apple ID, Google account, or Microsoft account directly on the device — not just in a browser. Must
Disable Find My (iPhone/iPad/Mac) or Find My Device (Android/Windows) before resetting, as these locks survive a factory reset if left active. Must
Sign out of streaming services, social media apps, and any app that stores payment information. Must
Deauthorise the device from digital storefronts (e.g. iTunes/Apple Music, Audible) that limit the number of authorised devices. Should
Remove the device from your two-factor authentication (2FA) trusted devices list in each account's security settings. Should

Remove Physical Components

Eject and remove your SIM card before handing off a smartphone or tablet with a SIM slot. Must
Remove any microSD or other memory cards from expansion slots. Must
Remove any connected wearables, cases, or screen protectors you intend to keep. Should

Perform a Factory Reset or Data Wipe

Use the device's built-in factory reset option (Settings > General > Transfer or Reset on iOS; Settings > System > Reset on Android; Recovery options on Windows/macOS). Must
For computers being recycled or sold to strangers, use a dedicated data-erasure tool that overwrites storage sectors, as a standard OS reinstall may leave recoverable data. Should
For older hard-disk-drive (HDD) computers you cannot wipe digitally, consider consulting a recycler that offers certified destruction. Nice to have

Clean and Prepare the Physical Device

Clean the screen and body using appropriate materials — a dry or lightly dampened microfibre cloth is generally safe for most displays. Should
Locate and include original accessories (charger, cable, earphones) where possible, as they can increase resale value and are helpful for donation recipients. Nice to have
Check for and document any physical damage honestly if selling, to set accurate buyer expectations. Should

Tools and Resources You'll Need

Most of what you need is already built into your device's operating system. A few optional additions can help with thoroughness, particularly for older computers being recycled rather than resold.

Required

Device Settings App

Provides the built-in factory reset and account sign-out options for smartphones, tablets, and computers.

Required

Cloud Backup Service

Used to create and verify a complete backup of photos, contacts, and app data before wiping the device.

Required

SIM Eject Tool (or paperclip)

Required to physically remove the SIM card from devices with a tray-style SIM slot.

Optional

Dedicated Data-Erasure Software

Overwrites storage sectors on computers to make data unrecoverable — particularly important for HDDs being sold or recycled.

Optional

Microfibre Cloth

Safe for cleaning screens and device surfaces without scratching oleophobic coatings.

Key Risks and Common Mistakes

Even careful users can miss steps that leave data exposed or a device bricked. Understanding where things commonly go wrong helps you avoid the same pitfalls.

Don't Reset Before Signing Out

Performing a factory reset while an activation lock (such as Apple's Find My or Google's Factory Reset Protection) is still enabled can leave the device permanently locked to your account. The next owner will be unable to set it up without your credentials. Always sign out of the relevant account on the device itself before initiating any reset.

Standard Resets May Not Fully Erase HDDs

On computers with traditional spinning hard drives, a standard factory reset or OS reinstall may not overwrite all stored data, leaving files potentially recoverable with consumer-grade tools. If you're recycling or selling an older PC to someone you don't know, use certified erasure software or a recycler that provides documented destruction.

Back Up First — Resets Are Irreversible

A factory reset permanently deletes everything stored locally on a device. There is no undo option and no recovery path once the process completes. Confirm your backup is complete and accessible on a separate device or storage medium before you begin. Do not assume cloud sync has captured everything — check manually.

For a broader look at keeping your digital life secure on an ongoing basis, see our everyday security guide, which covers passwords, app permissions, and account hygiene in accessible terms. If you maintain profiles across multiple devices, our Digital Life hub has further resources on keeping everything organised and protected.

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