To Request Shsh On 3utools When Top: How To Fix Error Unable

To Request Shsh On 3utools When Top: How To Fix Error Unable

Understanding SHSH Blobs

  • What are SHSH Blobs? SHSH stands for "Signature Hash Secure Hash". These blobs are essentially cryptographic signatures that Apple uses to verify and validate the firmware (or iOS version) that a device is running or trying to install.

8. Use an alternate machine

  • If the problem persists, try another PC to rule out local configuration problems.

Fix 3: Update 3uTools

Apple changes its server protocols frequently. An outdated version of 3uTools may try to request SHSH in a way Apple no longer accepts.

  1. Open 3uTools.
  2. Go to the Settings (gear icon) or check the bottom of the screen for an update prompt.
  3. Download the latest version.
  4. Try the flash/restore process again.

Method 7: Use "Expert Mode" and Fetch SHSH Locally

Instead of letting 3uTools request SHSH on the fly, you can manually fetch your device's SHSH blobs and save them locally.

Steps:

  1. In 3uTools, go to Toolbox > SHSH > Fetch SHSH Blobs.
  2. Select your device and the iOS version you want.
  3. Click Save Blobs to desktop.
  4. Then go to Flash & JB > Expert Mode.
  5. Tick "Select Local SHSH" and point to the blobs you just saved.
  6. Untick "Top" and manually select the matching iOS version.
  7. Start the restore.

🔧 Quick Fixes (Try in order)

  1. Check Apple’s signing status

    • Go to IPSW.me and check if your iOS version is still being signed.
    • If it’s unsigned, 3uTools cannot request SHSH blobs for that version — only saved ones might exist.

  2. Run 3uTools as Administrator

    • Right-click 3uTools → Run as administrator → retry.

  3. Disable antivirus / firewall temporarily

    • Some security software blocks 3uTools from reaching Apple’s TSS server.

  4. Switch Apple’s host in 3uTools

    • Go to Tools → Advanced → Switch Apple’s host → try different region (e.g., USA → China).

  5. Use manual mode

    • Instead of clicking the top “Get SHSH” button, go to Flash & JB → SHSH tab → select your device/iOS → click Save SHSH manually.

  6. Check internet & Apple server status

    • If Apple’s TSS servers are down (rare), wait a few hours and retry.

Step 2 — Boot device into the correct mode

The error often happens when the device is in a non-responsive state. Use these modes to allow 3uTools to communicate and request SHSH: how to fix error unable to request shsh on 3utools when top

A. Normal detection

  • If device boots normally to Home/Lock screen, attempt SHSH again.

B. Recovery Mode (recommended for SHSH requests when stuck)

  1. Connect device.
  2. Force-reboot into Recovery Mode (model-specific):
    • iPhone 8 and later: press Volume Up, then Volume Down, then hold Side until Recovery screen.
    • iPhone 7 / 7 Plus: hold Volume Down + Side until Recovery screen.
    • iPhone 6s and earlier: hold Home + Side/Top until Recovery screen.
  3. 3uTools should show device in Recovery Mode. Now try Request SHSH.

C. DFU Mode (if Recovery fails)

  1. Put device into DFU Mode (model-specific timing; search if unsure).
  2. 3uTools will detect as a device in DFU. Use 3uTools’ option to exit or operate. Then retry SHSH request.

Note: SHSH requests require the device to be in a state where it can provide ECID and device info — Recovery or normal boot are best.