iOS 4.0.1 has been released for iPhone 4, 3GS and 3G.iPhone 3G users can jailbreak their phone on iOS 4.0.1 using Redsn0w 0.9.5b5-5.All other iOS based devices will be jailbreakable once Comex releases his new jailbreak tool.
* Redsn0w Tool from Dev-Team.
For Windows – Download here
For Mac OS – Download here
Step 1: Create a folder on desktop and name it whatever you want, in the following article we named it iHackintosh. Now put all your downloaded files in the iHackintosh folder. Now connect your iPhone to the computer and launch RedSn0w from iHackintosh folder.
Step 2: Now here comes the tricky part, when redsn0w ask you to select firmware, browse to iOS 4.0 ipsw instead of iOS 4.01.
Step 3: In next Window check the Install Cydia option. You can select / unselect more advanced options like verbose boot, multitasking, wallpaper etc. Once you selected all required options click on next button.
Step 4: Now turn off your iPhone but make sure it is still plugged in to USB port. If you satisfies this term then click next to proceed the next step is to put your iPhone in DFU mode.
Step 5: To put your iPhone in to DFU mode follow the onscreen instructions as follows Hold the Power button for 3 seconds, Hold the Home and Power buttons for 10 seconds, then release the Power button and continuing holding the Home button until your iPhone is in DFU mode.
Step 6: If all goes well, and you put your iPhone in DFU mode successfully then the following screen will appear otherwise you will be prompted to do from Step 5.
Step 7: That’s it after 5 to 8 minute of process you will get your hands on a Jailbreaked iPhone.
You could always get support from UnlockAlliPhone.com about any Unlock & JailBreak issue of any model of iPhone including iPhone 2G,3G & 3GS and also upcoming iPhone 4. They provide Premium Members Support for life time. Means just pay one time a small fee and you will receive support(real human support – avg response time 2 hour) for all present & future version of iPhone.
Thanks to ihackintosh , redmondpie