How To Fix Error Unable To Request Shsh On 3utools When [REAL · Tricks]

If you are trying to save your iOS SHSH blobs or downgrade your iPhone/iPad using 3uTools, you may have encountered the frustrating error message: "Unable to request SHSH."

This error usually halts the process of signing a firmware file (IPSW), preventing you from utilizing the "Pro Flash" or "Easy Flash" features. Fortunately, this is rarely a hardware issue. It is almost always related to network connectivity or Apple’s signing servers.

In this guide, we will walk you through the most effective methods to resolve this error and get 3uTools working again.

Solution: If unsigned, you cannot request SHSH via normal methods. You can only save “on-board” blobs if your device is already running that version (using a jailbreak tool like System Info or blobsaver). How To Fix Error Unable To Request Shsh On 3utools When

If 3uTools still fails, use a dedicated blob saver:

Security software often mistakenly blocks the specific ports 3uTools uses to talk to Apple's TSS servers.

A wrong ECID or device selection will cause an instant "Unable to request" error. If you are trying to save your iOS

If you are trying to save blobs for an unsigned iOS version that is already running on your device, you can still retrieve the SHSH locally using a jailbreak.

Requirements: Device already on target iOS version + jailbreak (unc0ver, Taurine, palera1n for checkm8 devices).

Steps:

This bypasses Apple’s signing server entirely.

Sometimes a buggy update corrupts 3uTools’ internal certificate cache.

Steps:

Note: Newer 3uTools versions (v2.6x and up) have stricter checks. Older versions sometimes ignore signature expiry for tethered downgrades.