Back up your data
Sign out of all accounts
Turn off Find My iPhone or Find My Device
Factory reset the phone
Remove SIM card and memory card
Clean the phone
Check the phone’s condition
Gather original box, charger, and accessories
Compare prices on trade-in and resale sites
Choose a selling platform
Take clear photos
Write an honest listing
Set a fair price
Meet in a safe public place for local sales
Use secure payment methods
Ship only after payment clears
Delete any remaining personal data before handoff