If you have tried all the steps above and still can't resolve the "Unable to Request SHSH" error, or if you are uncomfortable with the more advanced procedures, it's time to seek professional help. Visit an Apple Store or an Apple Authorized Service Provider. They have diagnostic tools and procedures that can resolve complex software issues that are beyond the scope of consumer-level tools.
Many users find that simply updating to the newest release immediately bypasses the 9% hang. 2. Verify iOS "Signed" Status
Often, after a failed SHSH request, your iPhone or iPad will be stuck in Recovery mode or DFU mode, showing a screen with a computer cable icon. Don't panic. You can exit these modes: how to fix error unable to request shsh on 3utools when new
Are you attempting to to the newest firmware, or are you trying to downgrade to an older version?
But what if you are trying to save blobs for the ? Even then, 3uTools can fail because: If you have tried all the steps above
3uTools is identifying your model wrong. Part 1: Initial Troubleshooting (Do These First)
The best way to deal with the "Unable to Request SHSH" error is to prevent it from happening in the first place. Here’s how: Many users find that simply updating to the
Confirm your internet connection is stable, as SHSH requests require a direct connection to Apple's TSS servers.
By: Cogent Devs - A Design & Development Company