Updating iphone after jailbrake
Update#3: Now you can also use Tiny Umbrella to kick your device out from recovery mode. Update#8: Download Rec Boot 2.2 for Mac OS X 10.5.x and above.
Doesn't require Lib USB, all it needs is i Tunes and JRE installed on your computer. Update#5: With LAST DFU sofware, now you can put your i Phone into DFU mode with a single click. Update#9: Download Tiny Umbrella (Fix Recovery) to fix i OS 4.2.1 recovery mode loop issue.
Its a great utility for for those i Phone users who's i Phone Home or Sleep/Wake button is not fully functional.
Moreover this utility saves you from learning the 3-4 steps of putting your i Phone into recovery mode manually.
Chronic Dev Team has just released greenpois0n to jailbreak i OS 4.2.1 for Windows for i Phone 4, i Phone 3GS, i Pod Touch 4G,i Pod Touch 3G and i Pad.
In this guide, we will take you through the step by step procedure to jailbreak your i Phone 4 or i Phone 3GS on i OS 4.2.1 using greenpois0n.
If you’re already running i OS 4.2.1, skip to the next step (Make sure you read the imporant part above).
Connect your i Phone 4 or i Phone 3GS to your computer via USB cable and restore i OS 4.2.1. Follow the onscreen instructions to put i Phone into DFU mode.
We’re covering the i Phone here as an example, but it’s the same for all devices and all i OS versions.
You’ve jailbroken your i Phone 4 or 3GS on i OS 4.2.1.
Now open the Loader app from your i Phone home screen and install Cydia (Servers are being slammed so it may take several attempts). have fun with your untethered jailbreak i OS 4.2.1 on i Phone 4, 3GS.
Normally you need to put your i Phone into recovery mode when your want to do a firmware restore.
Rec Boot has very simple interface, only two buttons i-e "Enter Recovery Mode" which puts your i Phone to recovery mode and "Exit Recovery Mode" which takes your i Phone out of recovery mode option.
You can download i Phone firmware & IPSW files from Apple’s servers, we always have the latest IPSW links available here so just check to be sure you get the i OS firmware version you are looking for, appropriate to your device.