Compatibility Lookup
This mechanism only works on specific iOS versions. Confirm your version and chip architecture before choosing a method — if the version is wrong, no procedure will succeed.
Not sure which chip you have? A8–A11 covers roughly iPhone 6s through iPhone X; A12 and later starts at iPhone XS / XR. On iPad, match by release date — anything from 2018 onward is A12 or newer.
Full compatibility table
The arm64 column covers A8–A11 devices; arm64e covers A12 and later. The two architectures do not always share the same method, so read the column that applies to you.
| Version range | arm64 (A8–A11) | arm64e (A12 and later) |
|---|---|---|
| iOS 13.7 and earlier | Unsupported | Unsupported |
| iOS 14.0 – 14.8.1 | TrollHelper | TrollHelperOTA |
| iOS 15.0 – 15.4.1 | TrollHelperOTA | TrollHelperOTA |
| iOS 15.5 | TrollInstallerMDC | TrollHelperOTA |
| iOS 15.6 – 15.6.1 | TrollInstallerMDC | TrollHelperOTA |
| iOS 15.7 – 15.7.1 | TrollInstallerMDC | TrollInstallerMDC |
| iOS 15.7.2 – 15.7.6 | TrollHelper | No method yet |
| iOS 15.7.7 – 15.8 | TrollHelper | Not applicable |
| iOS 16.0 – 16.1.2 | TrollInstallerMDC | TrollInstallerMDC |
| iOS 16.2 – 16.5 | TrollHelper | Misaka |
| iOS 16.5.1 | TrollHelper | No method yet |
| iOS 16.6 | TrollHelper | Misaka |
| iOS 16.6.1 | TrollHelper | TrollHelper |
| iOS 16.7 – 16.7.2 | Unsupported | Unsupported |
| iOS 17.0 | TrollHelper | No method yet |
| iOS 17.0.1 and later | Unsupported | Unsupported |
On the method labels above. The write-ups are currently published in Chinese. Method names appear as plain labels here rather than links, so that nothing leads to a missing page. As English guides are published, the labels for those methods turn into links automatically.
Why the version limit is so absolute
Because the mechanism depends on one specific component flaw, not on a general technique. Once that flaw is fixed, the affected versions lose support permanently. There is no substitute method and no "newer tool" that restores it.
Is there really nothing for iOS 17.0.1 and later?
As far as public information goes, either. The relevant flaw was patched in 17.0.1. Videos and download pages claiming support for newer versions are generally traffic bait, and many of them repackage unrelated files as a "new tool".
Can a system update break an existing installation?
Yes, and usually irreversibly. Minor updates within the same major version are generally fine, but jumping a major version has a high chance of disabling the whole mechanism. Confirm the target version is still within the supported range before updating.