Method 1: The Computer-Based Checkra1n Method (Most Reliable)
True "Safari-based" or website-click jailbreaks do not currently exist for iOS 12.5.7. Websites claiming you can jailbreak entirely inside the mobile Safari browser without a computer usually install adware configuration profiles that steal data or display unwanted ads.
Chimera is a highly stable, modern exploit developed by the Electra Team. It supports all A7 to A11 devices running iOS 12.0 up to 12.5.7. It installs the package manager by default, which is faster and more modern than the classic Cydia store. jailbreak ios 1257 download top
Add native features like dark mode, custom control centers, and system-wide ad blocking. The Top Jailbreak Methods for iOS 12.5.7
(Windows or Mac) available to use?
Very smooth performance, optimized for the Apple A7 and A8 chips.
| Feature | Unc0ver 7.0.0 | Checkra1n | |---------|---------------|------------| | No computer needed after first install? | Yes (sideload once) | No (requires USB boot each time) | | Supports iPhone 6 Plus? | Yes | Yes | | Supports iPhone 5s? | Yes | Yes | | Supports Windows? | Yes (via AltStore) | Yes (via Linux or bootable USB) | | Permanent after reboot? | No (re-run app) | No (re-run via computer) | | Risk of telemetry? | Low | Minimal (open source) | It supports all A7 to A11 devices running iOS 12
| | Compatible Devices | iOS Versions | Jailbreak Type | Ease of Use | Overview & Key Features | | :--- | :--- | :--- | :--- | :--- | :--- | | Chimera | A7–A11 devices (e.g., iPhone 5s to X) & A12 devices on iOS 12.0–12.1.4 | iOS 12.0 – 12.5.7 | Semi-Untethered | Moderate | A modern, open-source jailbreak that uses the Sileo package manager instead of Cydia, which is often faster. It utilizes multiple exploits like machswap2 and sockpuppet for reliability. | | Checkra1n | A8–A11 devices (e.g., iPhone 6 to X) | iOS 12.0 – 14.8.1 | Semi-Tethered | Low | Uses the hardware-based, unpatched "checkm8" bootrom exploit. It's incredibly stable on supported devices but requires a computer (macOS or Linux) to re-run after every reboot. | | Totally-Not-Spyware v2 | A7–A10 devices (iPhone 5s, 6, iPad Air, etc.) | iOS 12.0 – 12.5.7 | Re-Jailbreak Only | High | Not for initial jailbreak. This is a unique web-based tool to re-activate an existing jailbreak after a reboot. It runs entirely in Safari without needing a PC, making it incredibly convenient for Chimera users. | | Unc0ver | A7–A11 devices | Excludes iOS 12.5.6 – 12.5.8 | Semi-Untethered | N/A | Not recommended for iOS 12.5.7. Official documentation confirms this version is not supported, and attempts will fail. |
Warning: Third-party certificate links revoke frequently. If these steps fail, proceed to Method B. Open on your iOS 12.5.7 device. The Top Jailbreak Methods for iOS 12
No. Untethered jailbreaks (persist through reboots) have not existed since iOS 9. The top available options are semi-untethered (unc0ver) or semi-tethered (Checkra1n).