Before unlocking your 3G running iPhone OS 3.0 please read the important note.

*Make sure you backup all your data before you start.

Step 1: You need the following software in order to do the unlocking.

    * jailbreak your iphone if you have not click here to read post

    * internet connection    

Step 2: Get a WIFI connection through Settings > WIFI

• Go to Cydia on your SpringBoard
  

• Open Cydia choose “User(Graphical Only)”
  

• Go back into Cydia and do a Upgrade Essential

• Then go into Cydia and select Manage
  and select Sources
  

   

  
  

   

  • select Edit
    

   

  
  

   

• Add
  

   

  
  

   

  • Enter the follow: http://repo666.ultrasn0w.com
    

   

  
  

   

  • Select Done
    

   

  
  

   

  • Go to
    Search and search for Ultrasn0w select Ultrasn0w
    

   

   

  
  

   

  • Install
    and then
    Confirm
    

   

  
  

   

  • Reboot Device
    

   

  
  

   

   

  Congratulation!!! You have unlock your iphone 3G with firmware 3.0 

  Please leave comment. Let me know if this post help.
   

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*Make sure you backup all your data before you start.

Step 1: You need the following software in order to do the unlocking.

    * itune 8.2.0.23 you can download load that here

    * redsn0w you can download that here or here or here

    * Firmware 3.0 for your 3G here or here

    * internet connection

Step 2: Ok let’s get started. Make sure you have itune installed

• Extract redsn0nw and run it

   

  

   

  Browse for the firmware should be the iPhone1,2_3.0_7A341_Restore.ipsw

  Select it and then hit Next
  

   

  You should get something like this

   

  

   

  Then make you have “Install Cydia” check then hit Next and Next again.

  

   

  Before moving on you are gonna have put the phone into DFU Mode just follow the instruction on screen so turn off your phone and follow instruction

   

  

   

  

   

  

   

  Just wait and let it go to work.

  Your iphone should be now jailbroken. Once redsn0w is done installing and your iphone rebooted back into SpringBoard you will now see Cydia

   

  

   

How to unlock your Iphone 3G with firmware 3.0 click here

Before unlocking your 3GS running iPhone OS 3.0 please read the important note.

* This guide is only for iPhone 3GS (don’t not do this for your iphone 3G or 2G)
* Make sure you backup all your data before you start.

Here is the step-by-step guide to unlocking your iPhone 3GS using purplesn0w:

Step 1:

You have to jailbreak the iphone
- download http://purplera1n.com/
- run the program and you “make it ra1n”

Step 2:

* After you have jailbroken your phone get on a Wi-Fi network (or any type of internet access with phone)

* Note* If you are on a T-mobile network or any carrier without 3G support then, please disable the 3G service before proceeding.
Tap Settings icon > Go to General > Go to Network > Turn OFF the Enable 3G option.

* Once you have internet access run “freeze”

* install Cydia you might have to power your phone and back up again for Cydia to show up

Step 3: Run Cydia wait for updates and use user graphic interface.

* Press Manage at the bottom of the screen

* Press on option Sources

* Press Edit (top right corner)

* Press Add (top left)

* type in http://apt.geohot.com the press add source

* the home button then go back in to Cydia

* Do a search for “com.geohot.purplesn0w” by pressing the search button in the bottom left corner

* install com.geohot.purplesn0w

* Now restart your phone.

Congratulation!!!! You should now be able to insert any SIM card you want in your newly unlocked iphone