This zip file appears to be a "signed" package meant for custom recovery installation. It is often cited in guides for users looking to replicate the iOS 9 user interface or system features on non-Apple hardware. "Signed" in this context usually refers to a digital signature that allows the file to be verified and flashed through a custom recovery (like TWRP or CWM) without encountering verification errors. Key Details Version Reference
Inside were hundreds of .jpeg images and a single .plist configuration file. Ios9 Signed 0429.zip