Watch the progress bar and the text log. Do not disconnect the device until the "Clean Flash Finished" message appears. When Should You Use Pro Flash?
The security mechanism preventing firmware downgrades is the SHSH blob (Signature HaSH). These are unique digital signatures issued by Apple for a specific device (ECID) and a specific firmware version.
Watch the progress bar and the text log. Do not disconnect the device until the "Clean Flash Finished" message appears. When Should You Use Pro Flash?
The security mechanism preventing firmware downgrades is the SHSH blob (Signature HaSH). These are unique digital signatures issued by Apple for a specific device (ECID) and a specific firmware version. pro flash 3utools