I've got an old iPhone 3G that I want to sell, however I don't have a charger for it. I'm going to sell it for spares or repairs but as I can't turn it on I don't know what personal info is on there. I've removed the sim card, will this be good enough? It's from when I was a teenager so there won't be any financial info or dodgy pictures haha. Will this be ok to sell as it is?