This question already has an answer here:
Can anyone clarify the process when a phone is wiped?
Let's assume that my phone gets stolen, and the thief being unable to unlock it chooses to wipe the device via a system restore in iTunes. Since the phone is (was) logged into my iCloud account, the thief will be unable to activate it, which should make it worthless to sell, right?
So, assuming a stolen phone gets restored, during subsequent setup it requires a WIFI connection prior to then logging in to the iCloud account it is locked to, so it should be contactable. At this point, will the phone be still trackable by my icloud account using find my iphone service after being restored, even though it is not technically logged into any iCloud account? Will the custom message still be displayed to whoever has the phone?