This tutorial is based on a german article from the site Ketchup Mayo Senf. We take no credit for this tutorial. If you speak german, check out the original article as it is a little more detailed.
Please read the whole article before you start. Especially the part where you have to decrypt SSL encrypted packages is extremely tricky.
There is another way to get the Auth Token from an iPhone 4S without having to restore it: How To Get The Auth Token (Identifier) From An iPhone 4S Using Your Own DNS Server
What you need
- iPhone 4S
- Laptop or a Computer with Wi-Fi