How To Jailbreak iPhone 3GS FW 4.0 using Sn0wbreeze 1.6.2 [ windows ]

Update : Version 1.6.2 released !

iH8sn0w released Sn0wbreeze 1.6.2 (for Windows) as the effort to fix problems found on iBooks, Youtube also iTunes error issues. And for iOS 4 jailbreaker such problems is pain in the neck.
Sn0wbreeze 1.6.2 also added with the additional support for old bootrom for users of Spirit jailbreak tool who are able to jailbreak iOS 4 using Sn0wbreeze.

Yesterday we had the release of PwnageTool 4.01 for Mac, from the Dev-Team, which allowed you to make custom iOS 4 firmwares ready for jailbreaking. Only a day later, we now have Windows support for creating custom jailbroken firmwares, with Sn0wBreeze 1.6.2

Just like RedSn0w, you will have the additional functionality options for the iPhone 3G and iPod Touch 2G, for multitasking and wallpapers. The same rules apply for Sn0wBreeze 1.6.2 as does PwnageTool. Certain devices are not supported. This is simply due to the fact that the hardware is not supported in iOS 4.0. The Phone 2G, iPod Touch, iPod Touch 3G are not supported. Neither is the iPhone 3GS with the new Bootrom, the MC models.

If you have an iPhone 3GS, Sn0wbreeze 1.6.2 only works on previously jailbroken 3GS devices with the old bootrom.

If you have a Jailbroken 3.1.2 iPhone 3G then you can create the firmware with Sn0wBreeze and restore your iPhone 3G from recovery mode or DFU mode. If you have an out of the box iPhone 3G you should restore using a Sn0wbreeze's DFU mode.
If you have a Jailbroken 3.1.3 iPhone 3G it is very possible that this can fail from recovery mode, if this failure happens you will need to restore using DFU mode.

Just like PwnageTool, you can add custom packages, which means you can include ultrasn0w along with the firmware so that you won't need Wi-Fi access to install it later. So basically everything that was offered on the Mac side with PwnageTool, is now available on the Windows side via Sn0wBreeze.

As an alternative to Sn0wbreeze 1.6.2, you can use redsn0w on iPhone 3G (on both Windows and Mac).

Let us recap real quick. Here is a list of supported devices :

iPhone 3GS (old bootrom, non MC model, not spirit jailbroken)
iPhone 3G (might require DFU,)
iPod 2G (non MC model, not spirit jailbroken)

In almost every case, you need to be previously jailbroken except for the 3G.

Snowbreeze 1.6.2 Windows

Download redsn0w 0.9.5b5-5:

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Sn0wbreeze is a tool for Windows of team iH8sn0w, creator of iReb, equal to the software PwnageTool for Mac users, it will permit you to customize a Firmware to jailbreak your iPhone or iPod Touch.
You can also include debs, define a root partition for Cydia, save their baseband, etc...
Launch Sn0wbreeze. Click OK.

Click the arrow.

Choose Simple Mode. Click the Arrow.

Click Browse.

Browse to the IPSW you downloaded earlier. Click Open.

Sn0wbreeze is working.

You must already be jailbroken (not Sprit) for this to work. Click I understand.

Click the arrow.

If you activate your iPhone via iTunes click no. If not click yes.

Sn0wbreeze is working.

Done! Close Sn0wbreeze.

Make sure your iPhone is off and unplugged. Launch iTunes. Hold the home button on your iPhone as you plug it in until you see the recovery screen, Hold Shift while clicking restore.

Browse to the custom IPSW Sn0wbreeze made for your iPhone (on your desktop). Select it and click Open.

iTunes goes to work.

When its done set up your phone and you're good to go! If you need to unlock continue on to this guide to Unlock with Ultrasn0w.

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