Sometimes it is necessary to save the SHSH signature of an iPhone, iPod or iPad, but this kind of operation requires a tool like TinyUmbrella.

Note: it seems that the software hasn't been updated for several years and that the publisher's website is closed. The version linked to this page is the latest to exist.

What are the key features of TinyUmbrella?

This is a program for saving SHSH signature of an iPod, iPhone or iPad on a PC running the Windows OS. This signature is specific and unique for each device and "firmware". It allows you to detect any changes that have been made on these devices.