On your iPhone/iPad, go to .

Chimera 1.6.5: Stability for Legacy iOS Devices Chimera 1.6.5 remains a critical release for the legacy jailbreak community, specifically targeting devices running iOS 12.0 through 12.5.7. Developed by the Electra Team, this version focuses on refining the user experience for older hardware like the iPhone 5s, iPhone 6, and iPad Air. Key Features and Improvements

iPhone XS, iPhone XS Max, iPhone XR (strictly on iOS 12.0–12.1.2) Key Features and Architectural Upgrades

I can provide target troubleshooting instructions for your legacy device. Chimera Jailbreak: iPhone 5s, iOS 12.0 - 12.5.7

to patch a critical security flaw, effectively locking these users out of their jailbreaks. The Mission:

The most notable technical change in version 1.6.5 is the update to the internal handling of the MOG (Managed Object Generation) field within the Linux Binary Interface.

The 1.6.5 update was specifically significant for users with older devices that Apple updated to iOS 12.5.x.

Supporting a broad range of iOS 12 versions (iOS 12.0 - 12.5.7). Key Features and Updates in Chimera 1.6.5

The bootloader components have been synchronized with the mainline OpenZFS logic, improving support for multi-disk boot configurations and enhancing reliability when booting from mirrored pools.