Q: i cant turn off passcode lock

Try Here...

https://discussions.apple.com/message/11461668#11461668

Have an Exchange account on your phone? If so, the ability to disable the passcode can be disabled by a profile also installed on your phone.

Are you accessing an Exchange account on your iPhone that is provided by your employer?

I've deleted my Exchange account, and I still can't turn off passcode lock. Any ideas ?

Contact your employer to remove this setting with a profile that have installed on the iPhone.

You also have to delete the provisioning profile that added the requirement for passcode lock. Settings/General/Profile.

Although it is rather foolish to not have a passcode on an iPhone, unless you have no personal information on it, no apps that access any sites that have anything to do with money, and no contacts on it. Without a passcode you are open to identity theft when your phone is lost, stolen, or just left around your office unattended.