Users have reported that the mode in 3uTools can bug out on certain firmware versions. Switching to iTunes Flash often bypasses this issue. Navigate to the Flash & JB tab. Select Pro Flash . Choose iTunes Flash instead of Easy Flash. 3. Use an External SHSH Host Service
The most common cause for this error is using an outdated version of the tool that cannot properly communicate with Apple's servers. official 3uTools website to download and install the newest version. how to fix error unable to request shsh on 3utools when top
Ensure that iTunes is closed on your computer before starting, as it can interfere with the 3uTools connection. 3. Verify Firmware Signing Status Users have reported that the mode in 3uTools