Apple regularly updates its security handshake protocols. An older 3uTools version (from 2021 or 2022) uses outdated API calls. Apple quietly rejects them, resulting in a generic failure.
...and you still see "Unable to request SHSH," then you must accept one of these realities:
The "Unable to request SHSH" error in 3uTools typically occurs during the flashing process (often at 9% or 19%) when the software cannot verify the firmware with Apple's servers Common Fixes Update 3uTools
Apple regularly updates its security handshake protocols. An older 3uTools version (from 2021 or 2022) uses outdated API calls. Apple quietly rejects them, resulting in a generic failure.
...and you still see "Unable to request SHSH," then you must accept one of these realities:
The "Unable to request SHSH" error in 3uTools typically occurs during the flashing process (often at 9% or 19%) when the software cannot verify the firmware with Apple's servers Common Fixes Update 3uTools
