Use TSSChecker to save your SHSH2 blobs for iOS 7.
Downgrading an iPhone 5s to iOS 7 is a popular goal for collectors and legacy enthusiasts who want to experience the A7 chip's original performance. However, because Apple stopped signing iOS 7 years ago, this process is no longer possible through standard iTunes restores. how to downgrade iphone 5s to ios 7
You need your device's ECID (Exclusive Chip ID) and the specific iOS version you are currently on. Use TSSChecker to save your SHSH2 blobs for iOS 7
Before you start, make sure to back up your iPhone. However, note that backups from newer iOS versions might not be compatible with older versions like iOS 7. You might lose some data or settings. You need your device's ECID (Exclusive Chip ID)
Standard DFU mode is not enough; the device must be put into "Pwned DFU" (exploited DFU mode) to accept a custom IPSW.
