Tutorial upgrade iOS 4.0

Broadly speaking, the steps we'll do is as follows:

1. Restore directly using iTune

2. Jailbreak using Redsn0w

3. Unlock using Ultrasn0w

For that, need to be prepared the Tools as follows:

- Redsn0w for windows 0.9.5

- IPhone IOS 4.0

- ITunes 2.9 for Windows

After all featuring

With iOS4 already downloaded with the SHIFT key (on keyboard) and click the "Restore". Then navigate to iOS4 you already own.

0.9.5 Jailbreak with Redsn0w

Now it's time to jailbreak with iOS4 us that we already downloaded.

Redsn0w Run as Administrator to prevent errors in the middle of the road

Click the "Browse" and navigate to the file "iPhone1_2_4.0_8A293_Restore.ipsw" (the same files when restore using iTunes) and click "Next" button

Enable multitasking and only the homescreen wallpaper centangannya dihilangin, agan2 case here .. he said heavily ..

Place your iPhone in the dead and still plugged into the PC and click "Next" button

Ready - ready to play the finger ....

The process is completed and press the Finish button

Iphone is new again ... But there are still problems with the phone signal, To proceed with the steps.

Unlock iOS4

Open Cydia (this is the wifi connection is required)

Essential upgrades if needed

Search ultrasn0w and install

Please wait and then ... ... iphone back function

So hopefully benefit