I can give you targeted steps to fix the error and get your device successfully jailbroken. Share public link
Download and install the official version of (64-bit) from Apple's website (avoid the Microsoft Store version, as it can cause connection issues).
Go to (or Profiles & Device Management). Tap on your Apple ID and select "Trust" . Step 4: Run the Jailbreak Open the Chimera app on your device. Tap the "Jailbreak" button.
Follow the on-screen instructions to place your device into (the software usually provides a visual guide). jailbreak ios 12.5.7 windows
As the PC boots up, repeatedly press your computer's Boot Menu key (usually , F11 , F8 , or Esc depending on your motherboard brand). Select your USB flash drive from the boot menu.
Complete Guide: Jailbreak iOS 12.5.7 on Windows (2026 Updated)
If you prefer a semi-untethered app-based exploit that doesn't require restarting your PC into a Linux environment, you can use or Freya by sideloading the software using Windows. I can give you targeted steps to fix
Fortunately, because these devices house older hardware, they are permanently vulnerable to hardware-based exploits. This means you can reliably jailbreak iOS 12.5.7 using a Windows PC.
If you are interested, I can also provide a list of top tweaks for iOS 12.5.7, or help you understand how to customize your UI to look like a modern iOS version. CoolStar's iOS Work
Once installed, go to your device's home screen. The app will not open yet. Tap on your Apple ID and select "Trust"
Jailbreaking is generally safe, but things can go wrong if you skip the preparation steps. Make sure you complete this checklist before proceeding:
: Use a genuine or Apple-certified lightning cable to connect your device to your Windows PC. Method 1: The Freya Jailbreak (Recommended & Easiest)
Jailbreak iOS 12.5.7 on Windows: The Ultimate Guide (2026 Updated)
Use the arrow keys on your keyboard to navigate the on-screen menu and select or Checkra1n/Palera1n (depending on which ISO variant you used).