Look at the firmware list in 3uTools. If the version is not marked as "Signed" (usually in green), you cannot flash it without previously saved SHSH blobs. 3. Use the "iTunes Flash" Mode
Below are the most effective solutions, ordered from simplest to most advanced. how to fix error unable to request shsh on 3utools when new
SHSH blobs are digital signatures Apple issues to authorize a specific iOS version installation on a specific device. When you restore or flash firmware, 3uTools tries to request these blobs from Apple’s servers. Look at the firmware list in 3uTools
The neon glow of Alex’s monitor was the only light in the room at 2:00 AM. On the screen, a progress bar had been stuck at 20% for the last hour. Below it, a bright red error message blinked mockingly: Alex was trying to jailbreak a brand-new iPhone. Use the "iTunes Flash" Mode Below are the
The most common reason for this error is that Apple has stopped "signing" the firmware version you are targeting.