IPhone privacy when sending for repair.
Can apple employees access my photos, messages or any of my personal data when I send my IPhone in for a repair when it hasn't been reset?
My IPhone 5C has a problem where it doesn't accept any chargers, or charge at all when I plug in offical and unnofficial chargers, before when my phone was working, the battery life would last maybe 2-4 hours at 100% and often overheat if left on, and since I can't charge my IPhone to back up the data or reset my IPhone and update it,I have to send it away, with all of my personal information, apps, photos and accounts logged in on it.
Can the Apple employees access my IPhone and the data such as Photos in camera roll, videos, IMessage, text messages, call history? and if they CAN are they allowed to? is there a policy against viewing the persons personal information such as photos etc on the phone?
Thankyou
iPhone 5c, iOS 7.0.1