Ok, excuse the stupidity of my questions, but it relates to a lost/stolen phone. I have a passcode on my phone, and will be purchasing a 5S which despite the fingerprint sensor will provide pretty much the same security. My question relates to what you can do to a locked phone. On my 4S IOS7 GM I can power off the phone and switch it to aeroplane mode. Both of which would prevent find my iphone working. Why does apple not disable these two functions when locked?