Jailbreak iPhone 4 with Redsn0w WINDOWS

ONLY WORKS WITH IPHONE 4

For devices with a new bootrom - JB tethered.

What do we need?
iTunes Download Here
Redsn0w Download Here

• MIRROR 1 
•  MIRROR 2 

 Soft 4.2.1 Download Here

Instructions:

1. Upload soft 4.2.1 (if you have not done)
2. Redsn0w Run (Win 7 and Vista - compatibility mode with XP + administrator)
3. Press "Browse" and point out where we have saved soft 4.2.1. The program will think a moment, and we can press the "Next"
4. You get quite a number of options (depending on device)

Install Cydia - jailbreak + install Cydia (select)
Install custom bundle - the installation of any file. "Deb" at jailbreaku (rarely useful)
Install iPad baseband - baseband installation of IPAD (required here)
Verbose boot - instead of the Apple logo when you turn on the command line hacker can see (useless, but it looks cute)
Custom boot logo - instead of the Apple logo can give your own picture (not useful, but it looks cute)
Custom Logo recovery - instead of the icon in the iTunes and cable recovery mode, we can give your own picture (very useless, but it looks cute)
Enable multitasking - Unlock multi-tasking on older equipment (according to preference, reportedly works well)
Enable homescreen wallpaper - wallpaper for the unlock icon (according to preference, I do not recommend - redundant Bajer)
Enable battery percentage - the percentage to unlock the battery indicator (useful tick)
Deactvate - deactivate the device (required here)
Just boot tethered right now - required for appliances with the "JB tethered," when we turn off the device
Just enter DFU mode pwned right now - a special DFU mode (only in exceptional cases, when iTunes does not want us to upload the firmware)
Move on by pressing the "Next"
Now we have to introduce the device in DFU mode. Very often, do not go for the first time, but believe me - you can be.
To facilitate redsn0w deducted if you hold the buttons.

Translation displayed in redsn0w textu:

1. Hold down the power button.
2. Without releasing the POWER button, press and hold the HOME button (10 seconds)
3. Without releasing the HOME button (hold it all the time!), Release the power button (30 seconds).

The device must have a black / white screen! If you see a serial communication line with the iTunes icon on the screen, you have to try again!Redns0w now automatically performs all I asked him.