Shsh Blobs

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There are several tools available that allow users to save SHSH blobs, including: shsh blobs

If the currently signed SEP/Baseband is , the restore will either fail, brick your device, or cause critical features like Face ID and cellular signal to stop working entirely. This public link is valid for 7 days

The honest answer is . The glory days of easy downgrading are over for modern devices (iPhone XS and newer, A12+ chips). the restore will either fail