JAILBREAK FOR IOS 4.0 FOR MC MODELS (TETHERED)

WHAT YOU WILL NEED:

* An iPhone 3G[S] or iPod Touch 2G MC or iPod Touch 3-- new bootrom
* 3.1.2 already installed or 3.1.2 installed via SHSH blobs. <-- Broken blackra1n'd devices will work. (Especially if Spirit messed you up!).
* Payload Pwner-r6
* sn0wbreeze V1.7
* iBooty V1.5
* 4.0 firmware downloaded.
* iTunes 9.2 Installed
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STEP A : Pwning iBoot

I : Download this easy tool--> Payload Pwner-r6 // It will help you create the payload.

II : Extract it to a directory and run Pwner.exe

**SAVE THE PAYLOAD WHERE iBooty is.**
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STEP B : Making a Custom IPSW

I : Download sn0wbreeze V1.7

II : USE EXPERT MODE!

III : In General, Checkmark "Disable NOR Flash" <-- THIS IS ESSENTIAL!!!!

IV : Build it. It will be on your Desktop.

**CUSTOM BOOT LOGOS THAT ARE MADE IN sn0wbreeze WILL NOT WORK ON NEW BOOTROMS!**

*Mac Users : PwnageTool does not have this option. I don't think it will ever be in there. Use a Windows Virtual Machine or friends PC to create your firmware.*
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STEP C: iBooty Prep.

Most of you know of the utility "iBooty" that ih8sn0w made for Aki_nG.

It will work as long as you place all of the correct files there.

I : Download iBooty GUI (iBooty V1.5) and Extract it.

II : Extract your Custom IPSW created by sn0wbreeze with winRAR or another un-archiver.

III : Grab the kernelcache and bring it into the same folder as ibooty.
Also grab iBEC from the folder "Firmware\dfu".
Aswell as DeviceTree from the folder "Firmware\all_flash\all_flash.n88ap.production\DeviceTree.n88ap".

IV :
* Rename your Kernel 4.0-Custom to "kernel.40"
* Rename your iBEC 4.0-Custom to "ibec.40"
* Rename your DeviceTree 4.0-Custom to "devtree.40"
***MAKE SURE YOU REMOVE THE .img3/.dfu/etc extensions!***
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Your folder should look like this :

- iboot.payload <-- Created with Payload Pwner.
- devtree.40 <-- Grabbed from Custom IPSW made by sn0wbreeze.
- ibec.40 <-- Created with Payload Pwner.
- bspatch.exe <-- Comes with iBooty.
- iBooty.exe <-- Comes with iBooty.
- kernel.40 <-- Grab from Custom IPSW made by sn0wbreeze.
- sn0w.img3 <-- Comes with iBooty.
- wait.img3 <-- Comes with iBooty.
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STEP D: Restoring to 4.0 + Booting
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*MAKE SURE YOU ARE ON 3.1.2 WHEN DOING THIS*

I : Run iBooty and Select "Prepare Device for Custom Firmware". Make sure that your device is in Recovery Mode (The one with the iTunes Connect Logo). Run the Process and if you see the image, you can proceed!

II : Now open iTunes and restore to the custom ipsw.

***WHEN DONE, YOUR DEVICE WILL GO INTO RECOVERY MODE. IT WONT BOOT.***
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STEP E : Booting

I : Just Re-Run iBooty and select "Boot It". If all goes well it will boot!
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Enjoy!
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(tutorial made by ih8sn0wforums.com)