i have a 4s from ebay that was bought to be used as a mp3 player and gamer unit for my daughter. It was a Verizon phone and I have no idea if it is unlocked, etc. she isn't going to use it as a phone. it does have an incredible amount of music on it so I am wondering if I could transfer it into my computer before resetting it. I have no knowledge of former owner or why they did not delete everything. But something like 400 albums of what I would consider awesome music. I do not have iTunes installed on any computer.