Clarify what "AppleTech752 Silver 61" refers to. Is it an Apple device, a compatible accessory, or something else?
: The 6.1 update introduced a "Verbose Server Ramdisk" for the iPhone 5s, allowing a process called A7 FactoryActivation
If you see an "app is damaged" error, right-click the app, select Get Info , and ensure permissions are allowed.