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How to save Blobs for iPhone SHSH2 and validate the signature

In December, the developers announced the Prometheus app that allows you to downgrade the OS on iPhone, iPod touch or iPad. We are talking about the operating system versions, who stopped signing Apple. In order to use the tool, please save the certificates SHSH blob.

SHSH blob is a digital signature file, with which the company checks the version of iOS on the device. To use Prometheus is not suitable certificates that have been saved using TinyUmbrella or savethemblobs. The necessary files in a special format shsh2, they can be obtained by the utility service TSSSaver. To verify digital certificates allows online tool TSSSaver Checker

How to save SHSH2 Blobs for iPhone and iPad using TSSSaver

Step 1: connect your gadget to iTunes and on the main page, find out the number ECID (click on the field “Serial number”). Copy it to the clipboard by right clicking.

Step 2: Here find out the model of your device.

Step 3: Open the browser to the website https://tsssaver.1conan.com/.

Step 4: In the “Type ECID Here” paste the ECID for your device.

Step 5: In the Identifier field, select the model of your device.

Step 6: Click “I am not a robot” and then Submit.

Step 7: Wait until complete, then you will receive a link to blobs. Click the link to download the certificate.

If you lose the link, you can always find by clicking on the link tsssaver.1conan.com/shsh/”ECID”.

How to verify the signature SHSH2 with TSSSaver Checker

Step 1: Open a browser link https://tsssaver.1conan.com/check.php.

Step 2: In a Blob field, click Browse and select the digital signature file on your PC.

Read also:   Top 5 most essential apps for iPhone and iPad

Step 3: In the fields Identifier and iOS Version specify the version of your device and operating system respectively.

Step 4: Click “I am not a robot” and then Submit.

Step 5: If the configuration settings are correctly selected and beside the label “rosi” you see “true”, all right – the certificate can be used. Otherwise, repeat the previous step with preserving SHSH2 Blobs.

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