Users with an iPhone 3GS, 2nd (model number MC) or 3rd generation iPod touch, the signature of Apple needed to have at a later time to restore to firmware 3.1.2. This principle applies to all users of these models, but is particularly important for (potential) jail breakers because jailbreaken firmware to 3.1.2 and unlock is. The capture of this signature is only possible before Apple comes with a new firmware version. We put you step by step how to proceed at this last chance will soon be let go.

To be clear: this is only for users with an iPhone 3GS, a 2nd generation iPod touch 8GB with a model number beginning with MC or a 3rd generation iPod touch. No matter what firmware version you currently have installed. Do you have another iPhone or iPod touch, you have the signature of Apple not need to be able to restore a previous firmware.

Accidents can happen and if you one for whatever reason with one of these models must restore an official firmware and you have the signature of Apple firmware 3.1.2 not saved, you will only go to the very last firmware to recover. It is important to note that for these models in each new firmware a new exploits will be found in iBoot and that you can not go out that any new firmware or even jailbreaken would unlock.

Make my life easier, thanks! The easiest way to get the necessary signatures to save during the initial startup of Cydia. You will be asked whether this information for Cydia will save you, where you only “Make my life easier, thanks!” Need to select. Do you (still) not jailbreak, you’ve already replied with “I hate jailbreaking. Go away. “Or you just like your own destiny, then you can use the following steps of the signature itself (in the form of ShSh data) store.

Determining your ECID

In order for your personal signature for firmware 3.1.2 Apple store, you will first Exclusive Chip IDentification (ECID) to find out. This is a unique number that your iPhone or iPod touch identifiable. This guide is aimed at Windows users, if you use a Mac makes you the ECID of your iPhone or iPod found through Applications, Utilities, System Profiler and then USB instead of using usbview as described below .

1. Make sure you have at least iTunes 8.2 installed and also download usbview.
2. Extract the zip file from usbview.zip.
Unpacking
3. Turn your iPhone into recovery mode (recovery mode). This is done by the iPhone / iPod via USB to connect and then first off. Off can be done by the Home and Power button simultaneously again until you can slide to turn off. If the iPhone / iPod off once again simultaneously press Home and Power on your screen until the iTunes logo and a USB cable looks.

4. Open USBView.exe
Open usbview
5. Go to Options and switch to Config by selecting descriptors.
Options -- Config descriptors
6. Press the F5 key.
7. Look to the left of the screen on your iPhone or iPod, this is Apple Mobile Device (Recovery Mode) or Apple Recovery (iBoot) USB Driver listed depending on your operating system and associated drivers. Then select it.
iPhone or iPod in recovery mode
8. On the right side of the screen you can now find the sixteen-digit ECID your iPhone / iPod found. Write this on or copy / paste it to a text file.
ecid
9. You can change your iPhone or iPod touch to restart again by the Home and Power button to hold the iPhone or iPod from going. Then release both buttons and just press the Power button to the iPhone or iPod back on.

Saving the data ShSh

Once you know your ECID, you can easily personalized signature for your Apple iPhone or iPod touch get.

1. First download the firmware Umbrella program.
2. Unpack the file fw-umbrella-semaphore-217.zip out.
3. Open the file umbrella.exe (or umbrella64.exe on a 64-bit OS)
4. ECID fill in or copy / paste this from the text file.
Umbrella
5. In the next field on which model you use and what firmware version you have.
Device version
6. In the last field lets you select which server it used to be. Apple lets you directly select the Apple signature capture. By Saurik -- Cydia you can select the signature in Apple applications via Cydia and then save. It does not hurt to try both. Localhost is intended for use with TinyTSS and the goal now is not interesting.
ShSh Repository
7. The signature (in the form of a file ShSh data) will appear in the directory which also umbrella.exe be found. Save this file in a safe place!

iRebJe you at a later time using TinyTSS to restore to a signature on the firmware which you’ve beaten. TinyTSS and the associated readme.txt can be found in the zip file fw-umbrella-semaphore-217.zip that you’ve already downloaded, but the command-line nature of this solution many users dislike. Once the next firmware version is iReb will also include a solution with a graphical interface. If that happens we will explain in simple steps how the file you just saved, you can use to restore to firmware 3.1.2.