Error 1600 & Error 21 solved! :D

Everyone is waiting for this moment that IOS 5/5.0.1 can be jailbroken because an original Iphone is just another phone. Although App store does offer many nice games but somehow, we still need the phone to be jailbroken in order to FULLY UTILIZE it!

There are many tutorials out there where one can easily learn to jailbreak the phone. All you need is a PC! What do you need to do next?

Enter this in your URL:- www.google.com

HAHAHA!

And type this in the google search bar - jailbreak IOS5.0.1 and click on any links that appeared and you can be the next Steve Job's daughter/son! :P

Well, personally I like this website loads, personal preference:- www.redmondpie.com

You can find the step-by-step tutorial here on how to jailbreak!

I sucessfully jailbreak mine was I was working in the office. 1 screen was focusing on my work while the other one was jailbreaking my phone. Everything went well and it was pretty easy I should say!

So I told my baby so and he wanted to jailbreak his too. Who knows.. his was a different story! I spent like 7 hours to turn his phone original to jailbroken phone! I almost wanna hang myself because I did it in the mid of the night! I shall say.. I am such a good gf who knows how to jailbreak and most important I love him so much till I willing to work OT for him to fix his phone!

I had no idea why when I restore his phone to IOS5.0.1, this error 21 popped up. I googled up and down and found out that the phone needs to be in DFU mode in order to avoid this error.

What is DFU mode & how do you get into DFU mode?

DFU mode is a state that you can put your iPhone into where it can interface with iTunes but does not load the iPhone operating system or boot loader (this is what really differs DFU mode from recovery mode). DFU stands for Device Firmware Update.

To get into DFU mode:-

1. First, switch off your phone and make sure that the USB is plugged into the phone and connected to PC

2. Once phone switched off, hold the power button for 3 seconds

3. Then without letting go the power button, hold the home button for approximately 10seconds (beginning of this stage, you will see the apple logo, after awhile, it will be gone and your screen will turned completely black)

4. Next, let go off the power button without letting go the home button for approximately 15seconds

If you are using redsnow, you will be able to follow the steps shown in it. It's pretty easy! The guideline shown on screen is the best among all that I've searched from the web.

And yes, I managed to solve error 21 by what I have mentioned above BUT next, I got error 16! Damn it!

I took few hours to search from google how should I solve this error & of course I found tons but NONE OF THEM are working! :(

This is the most common one:-

If you get a 1600 or 16xx error while trying to restore to a custom 3.1 firmware for iPhone 2G or 3G, try the following :Try this first instead of entering DFU mode…for 3G1)UNPLUG ur iphone and turn off2)Open itunes3) hold home as u plug in iphone and keep holding until u see itunes logo on ur iphone4) then SHIFT+restore and locate the custom ipsw

and there u go! (thanks txccu2000).

Until I found one from macrumors forum with the solution that works! Finally I see HOPE!

For MAC: 1. Finder > Go> type in the box"/etc/" no quotes. 2. Copy the "hosts" file to desktop, open with textedit. 3. If at the bottom you have a line with ending with gs.apple.com I believe thats the problem, put a "#" at the beginning before the ip address. That sets that line to be ignored and no 1600 error (if youre on a windows box, use google to help u find the hosts file 4. Use itunes to restore iphone to restore software. Plug in iphone hold alt and click on restore, select the ipsw file that you just downloaded. Should go through the process restoring you to stock ios.

Apparently this works for me. After that, my baby's phone successfully upgrade from 4.3.3 to 5.0.1!

YEAH!

I thought of sharing this because I hope more people can share the tricks to overcome error 1600 and error 21 so at least they do not have to spend the whole night figure out what to do just like me! :P

Happy jailbreaking and hope this tutorial helps!

Love,

Missbunnie