Disconnect your Apple Watch or AirPods in the Watch or Bluetooth settings.
Once Apple receives and inspects the device, they will finalize your credit. If the condition differs from your description, they may offer a revised value, which you can accept or reject. apple buy your iphone
Go to Settings > General > Transfer or Reset iPhone > Erase All Content and Settings . Disconnect your Apple Watch or AirPods in the
Go to Settings > [Name] and tap Sign Out . they may offer a revised value
This is critical; Apple cannot accept devices with Activation Lock enabled.