利用 checkm8 漏洞，无需越狱实现某些设备降级到 iOS 10.3.3。刷机有风险，请谨慎操作。
https://github.com/MatthewPierson/1033-OTA-Downgrader
https://github.com/MatthewPierson/1033-OTA-Downgrader
GitHub
GitHub - MatthewPierson/1033-OTA-Downgrader: First ever tool to downgrade ANY iPhone 5s, ANY iPad Air and (almost any) iPad Mini…
First ever tool to downgrade ANY iPhone 5s, ANY iPad Air and (almost any) iPad Mini 2 to 10.3.3 with OTA blobs + checkm8! - MatthewPierson/1033-OTA-Downgrader