: Users frequently use Chimera 1.6.5 on older devices like the iPhone 5S or iPhone 6 to install tweaks that fix modern app compatibility issues, such as making Twitter/X or YouTube functional on iOS 12.

28 Apr 2025 — * Officially verified to work on iOS 12.5 (Chimera 1.5.1 already worked on 12.5) * Backports more of Odyssey's changes to Chimera. The Apple Wiki Releases · coolstar/chimera-ipas - GitHub

| Issue | Likely fix | |-------|-------------| | App crashes on launch | Re-sign with AltStore / ReProvision | | Stuck at “Exploiting…” | Reboot, enable Airplane Mode, disable passcode, open Chimera, wait 10 sec, tap jailbreak | | Infinite respring loop | Hard reboot → jailbreak with “Load Tweaks” OFF → remove bad tweak in Sileo | | Tweaks not working | Check Substitute is installed; reinstall libhooker | | Cydia not showing | Chimera only shows Sileo – install Cydia manually via Sileo (Cydia Installer package) |

Why the versioning matters