1680 Views 1 Reply Latest reply: Feb 28, 2012 8:18 PM by randers4
If your friend no longer uses her old iPhone have her:
- Go to: https://supportprofile.apple.com/MySupportProfile.do
- Log in if not already logged in.
- Click on "edit products"
- Click on the "x" to the right of the product.
- Click "unregister"
This shoule deactivate her old iPhone with iMessage.