Before we can accept any iPhone, iPad, or iPod touch for repairs the Find my iPhone feature needs to be turned off.
You can disable Find My iPhone in any of the following ways. The owner’s Apple ID password will be required in each case. Please note that option 4 is the best method if you are having us service a device that does not work (e.g. no power on, cracked glass, etc)
1) Turn off Find My iPhone
On your iOS device… Go to Settings > iCloud and turn off Find My iPhone.
2) Sign out of iCloud
On your iOS device… Go to Settings > iCloud and tap Delete Account.
3) Erase All Content and Settings
On your iOS device… Go to Settings > General > Reset > Erase All Content and Settings.
4) Remove the device from account at iCloud.com using any computer.
Sign in to www.icloud.com/find with your Apple ID.
Select the device that needs to be removed from the account.
If the device is offline, click Remove from Account.
If the device is online, click Erase. When the erase is complete, click Remove from Account.