Remove a device from Find Devices on iCloud.com - Apple Support
You can use iCloud.com to remove a device from your list of devices and remove Activation Lock.
- Go to icloud.com/find, then sign in to your Apple Account (if necessary).
- In the list of devices, select the device.
If you already selected a device, select All Devices or X to return to the list
- Erase the device.
Because the device isn’t lost, don’t enter a phone number or message.
If the device is offline, the remote erase begins the next time it’s online. You receive an email when the device is erased.
4 When the device is erased, select Remove This Device.
Activation Lock is removed immediately, and your device is also immediately removed from Find My. All your content is erased, and someone else can now activate the device.