Short answer: Yes.

Unlike newer iOS versions (15–17) that require constant cat-and-mouse patching, iOS 12.5.7 benefits from mature, open-source exploits. The most reliable tool for Windows users today is palera1n (specifically the Windows port via palen1x) and the legacy checkra1n (with certain limitations).

However, there’s a critical caveat: All current jailbreaks for iOS 12.5.7 are semi-tethered or semi-untethered, and they rely on a hardware vulnerability (checkm8) that affects all A5 through A11 chips. This is good news — it means Apple cannot patch it with software updates.

Because Checkra1n runs natively on Linux, and Windows can create a Linux environment, the best solution is to create a bootable USB drive. This allows your computer to temporarily run Linux so you can run Checkra1n.

What you need:

The Steps:

Pros: No virtual machine lag; direct USB access. Cons: Requires restarting your PC and navigating a basic Linux environment.

The good news is that iOS 12.5.7 is fully susceptible to the checkm8 hardware exploit. This is a "bootrom" exploit, meaning Apple cannot patch it with a software update. It is a semi-tethered jailbreak, meaning you need a computer to boot your device into the jailbroken state every time it restarts.

The primary tool utilizing this exploit is Checkra1n.

The Catch: Checkra1n is officially supported on macOS and Linux. There is no native Windows version of Checkra1n.

So, how do we proceed? There are two reliable ways to run Checkra1n on a Windows machine.