To jailbreak iOS 12.5.7 using a Windows computer, the most reliable and widely used methods are 3uTools (with the Chimera tool) or Checkra1n. Preparation Checklist
If you’ve landed here searching for “jailbreak iOS 1257 Windows top,” you’re likely holding an older Apple device—perhaps an iPhone 5, 5c, 6, or an early iPad. The string “1257” is almost certainly a typo or shorthand for iOS 12.5.7, which is a real firmware version released by Apple in January 2023 specifically for unsupported legacy devices (iPhone 5s, iPhone 6, iPad Air 1st gen, etc.). jailbreak ios 1257 windows top
Drag the Chimera IPA into the tool and enter your Apple ID to sign it. To jailbreak iOS 12
to install "tweaks" that customize your home screen, animations, and system fonts. Essential Tweaks : Popular options include (icon animations) and If you reboot your phone, the tweaks stop working