Data backup is the absolute first step, ensuring your contacts, photos, and other information are safe before any other action. Simultaneously, gather critical account details like usernames and passwords to avoid access issues later. Next, unpair all wireless accessories including smartwatches, headphones, car stereos, and portable speakers connected via Bluetooth.

Disconnect any devices using your phone for two-factor authentication. Then, sign out of cloud services like iCloud or Google and disable Find My features to prevent accidental data exposure. If you have protection plans like Apple Care, cancel them early to reclaim unused funds.

Finally, factory reset your device to its original state and remove all physical accessories before handing it over. These steps ensure your data stays private and you get the most value from your old phone.