iphone 5 factory reset
Hi
I am trying to factory reset an Iphone 5 for someone at work .The recommended update has not been done last October and now when it's switched ON the phone shows the welcoming message and then displays the WIFI list. When trying to connect it says the phone is disabled or deactivated as it's in french.
I have tried to factory reset it by pressing the homeand wake/sleep button for 10 seconds but it goes back to initial display.
Can someone please advise how to factory reset it ?
Many thanks
iPhone 5