If your device is lost or stolen If you ever misplace your device—whether it’s lost or you think it might have been stolen—you should put it into Lost Mode immediately with Find My iPhone. Quickbooks Pro 2015 Keygen here. How To Unlock A Phone Using Android Device Manager. Can Unlocked Tmobile Phone Work Verizon. Lost Mode locks your screen with a passcode and lets you display a custom message with your phone number to help you get it back. You can also remotely erase your device if needed, and your custom message continues to display even after the device is erased. While Activation Lock works in the background to make it more difficult for someone to use or sell your missing device, Lost Mode clearly indicates to anyone who finds your device that it still belongs to you and can’t be reactivated without your password.