I can walk you through the specific steps for the method that fits your situation!
In the modern era of iPhone security, downgrading is usually impossible. Apple stops "signing" older firmware versions usually within a week or two of a new release. Once the signing window closes, the device refuses to install the older software. Downgrade Iphone 5s To Ios 7
The iPhone 5s originally shipped with iOS 7.0. However, downgrading from a newer iOS version (10.3.3 or 12.5.7) back to iOS 7 is and is technically impossible using standard methods due to cryptographic signature checks. This report outlines the only known bypass methods, their severe limitations, hardware dependencies, and success rates. I can walk you through the specific steps