How to unlock iPhone 3GS on iOS 5.1.1

The following is a guide to unlock iPhone 3GS on iOS 5.1.1 via software. Before you proceed, please make sure that your iPhone 3GS is not one of the ones that comes with Toshiba baseband chip. This is the easiest/fastest method i've found and i've tested it working personally. The risk of bricking your phone is minimal.

1. Check the serial number of your iPhone, if it's produced before 41th week of 2009 (old boot rom), it's on old bootrom and you need to download this file. Otherwise (new boot rom), you need to download this file. If you do not know which week it is produced, you can use this tool to check.
2. Download Official iPhone 3GS iOS 5.1.1 firmware from Apple.
3. Download latest Sn0wbreeze for Windows.
4. Start Sn0wbreeze, choose your bootrom type from #1 and select expert mode.
5. Choose install iPad baseband.
6. Click Build IPSW and a custom firmware will be saved on your desktop.
7. Follow instructions in Sn0wbreeze to put the phone in pwned DFU mode.
8. Start iTunes. Shift+Click restore in iTunes and choose the custom firmware you just build. iTunes will start restoring firmware onto the iPhone.
9. Once the restore is complete. iPhone will reboot.
10. Start Cydia on iPhone. Wait for it to finish loading.
11. Search for Ultrasn0w and install it in Cydia.
12. Reboot the iPhone. Congratuations, your iPhone 3GS is now unlocked.

Did it work for you? Please leave a comment!

 

How to remove BlackBerry IT Policy

Some blackberries have IT Policy set on it. Here's what you can do to remove it. I've tried the steps below and it worked for me.

Option #1:

• Download and install BlackBerry Desktop Manager from here
• Go to Start -> Run -> Type cmd
• Go to the apploader folder by typing the following in the cmd console.
  cd C:\Program Files\Common Files\Research In Motion\Apploader 
  or 
  cd C:\Program Files (x86)\Common Files\Research In Motion\Apploader  (64 bit windows) 
• Type loader.exe /resettofactory
• If your blackberry is password protected, you will be prompted for password. If you forget the password, you may simply try incorrectly for 10 times and the blackberry will then wipe itself out. 

It will work most of the time with option #1. But if it happens that it does not work, you may try the following. I have had some luck

with that as well.

Option #2:

• Download and install BlackBerry Desktop Manager from here
• Download the policy file and save it to C:\Program Files\Research In Motion\BlackBerry
• Go to Start -> Run -> Type regedit
• Navigate to HKEY_Current_Users\Software\Research In Motion\BlackBerry\PolicyManager. Right-Click the Policy Manager  and create a new string value named Path. Set its value to C:\Program Files\Research In Motion\BlackBerry\policy.bin
• Go to Options -> Security and choose Security Wipe on the device 
• Start BlackBerry Desktop Manager and connect the blackberry to PC

 

You can verify on the blackberry's Option -> Security menu that its IT Policy should be empty.

 

Did it work for you? Do you know any easier way to do this? Please post your comments below.