When I am at that situation, I am very panic, I mean, VERY… I am so worry that I bricked my iPhone… cry…

I search through the web to find a solution to solve the issue. And finally, I got one which is working.

Get your phone boot into DFU mode (Device Firmware Update). Here the guide:

1) Power off your iPhone.

If you are not able to power off your iPhone with the normal way (Press the power button until the “slide to power off” screen come out, then slide it to off.), try following ways:

Press HOME button + Power button for 10 seconds.

2) Ready your computer with usb cable connected (NOT to your iPhone) with iTune started.

3) Press HOME button.

4) Don’t release HOME button, connect the USB cable into your iPhone.

5) Your iPhone will startup into DFU mode.

6) Your iTune will detect the iPhone and ask you to restore it.

Now, you should start restore your iPhone with the correct firmware, and your iPhone is back.

Oh, if you don’t know what to do next, you may refer to the following post I posted earlier:

http://www.malaysiaiphone.com/blog/upgrade-and-jailbreakunlock-your-iphone-2g3g

This way will also work (or I should say, the LAST option for you) if your iPhone can not start, or firmware corrupted.

Thank you for reading.

Related posts:

1. How to Jailbreak + Unlock iPhone 3G 3.0 Firmware