IPhone firmware downgrade with errors

Asked By 0 points N/A Posted on -

I have an iPhone firmware of which I want to downgrade, before doing so I have to edit the list of IP addresses of which is stored in a file name “hosts”.

I can access the file but I can’t edit it. It displays an error message: “contact administrator” but I am responsible for administrative and backup operations.

Kindly help me where I go wrong?  

Best Answer by Baker Alex
Answered By 0 points N/A #100783

IPhone firmware downgrade with errors


Hi Daniel,

I suggest you to get shsh blob using the tiny umbrella to be able to solve your issue. Please follow the procedures below to:

  • Download tinyumbrella,. You can download it depending on your OS
  • Download it on this link http://blog.firmwareumbrella.com
  • Install tinyumbrella
  • Connect your iPhone into your computer
  • Click save shsh after launching tinyumbrella
  • Wait until it successfully download shsh blobs
  • After saving it, go to log tab and then start tss server
  • Close iTunes
  • Open https://www.apple.com/
  • You can now launch iTunes
  • Downgrade your firmware

I hope it helps.



Best Answer
Best Answer
Answered By 0 points N/A #100786

IPhone firmware downgrade with errors


You need to get shsh blob to solve this problem. To get shsh blob, at first you need to download it by using tiny umbrella. To get shsh blob by using tiny umbrella, you need follow this following steps:

1. Connect your iPhone via USB cable in your computer.

2. Open tiny umbrella and then click on the button named Save SHSH.

3. Open the Log tab and then click on the Start TSS Server button.

4. Now you will see this two following lines:

     TSS Server Started!

      TSS Accepting connections….

5. Now open https://www.apple.com/ from your browser.

6. After that this downgrade your iPhone firmware.


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