Think I'm just paranoid lol but once heard someone say that even after factory resetting people do have ways to get details from the phone (eg bank details etc). Is it ok to just sell it? It works but has a cracked screen and is old so it's more for spares or repairs.
Read more: I'm selling an old phone (Samsung Galaxy Ace). I have factory reset the phone, is there any way that the buyer could get hold of my info?