iOS Mods

April 3, 2011

How to Jailbreak IOS 4.2.1 and preserve Unlock

Good news for IPHONE 4 users you can update your iphone 4 to 4.2.1  and jailbreak while preserving your baseband allowing you to stay unlocked. Its is a staight forward method using two great prgrams called TINY UMBRELLA  and the new GreenPoisOn tool.

Discalimer Follow these instructions at your own risk i am not responsible for any damage caused to your device.

How to jailbreak Iphone 4 4.2.1 while preserving baseband

1. Download and install TinyUmbrella

2. Download iphone 4  ios4.2.1

3. Start TinyUmbrella let it load up and start TSS Server

4. Start Itunes up.

5. Plug your Iphone 4 in to your computer.

6. Restore to ios 4.2.1 you will now get an Error 1013. This is normal.

7. Now put your phone into dfu mode

– press the sleep button for 2 seconds

– Now while still holding the sleep button press and hold the home button for 10 seconds

– Now release the sleep button and keep holding the home button for a further 15 seconds

Now follow my how to jailbreak ios 4.2.1 tutorial and your done.

All credit goes to the developers of these wonderful programs please feel free to donate to the developers to support there great work

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Ryan Oneill

Editor In Chief

I live in Scotland UK and have been blogging about technology for a long time. I started BeginnersTech as I wanted even the total novice to be able to enjoy it as much as I do. If you ever need help or want to ask a question you have come to right place.


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