How to unlock iPhone 3g, 3gs, iPhone 4 4.1 with baseband 05.14 and 05.15

Here is the tutorial you need using Redsn0w:

What you need:

• iPhone 3G/3Gs firmware 4.1
• iTunes 10.1
• redsn0w 0.9.6b5 for Mac or Windows

1. Restore your device with a stock iOS 4.2.1 firmware. ( again, by doing this you will loose the ability to unlock!!!)
2. Run redsn0w, and click on browse. Browse for the stock iOS 4.2.1 and open it

3. Wait for redsn0w to recognize it and click ‘Next’

4. On the next screen select what you want to be installed on your iOS device(s). By default, Cydia and ‘enable battery percentage’ is selected. I suggest you deselect battery percentage and everything else, and just install Cydia. This will improve ( a bit ) the overall speed of your device – if you are on a iPhone 3G. If you choose to “Enable battery percentage”, you actually toggle that off and on via Settings->General->Usage.
IF you only need to restore with a custom firmware, deselect everything, and select only “Just enter pwned DFU mode right now”.
In this case, you will want to select, install iPad baseband. When you select it, you will get a warning that tells you the risk of this process.

5. redsn0w will ask you to turn your device off. If it’s not already off, plug it in FIRST and then turn it off. Click next to continue

6. Now, you will need to put your device in DFU mode. Follow the instructions on the screen.

7. Wait a few seconds for redsn0w to do its thing, and you are done. You can close redsn0w because everything else it’s happening directly on the device.

8. Now load Cydia, and install ultrasn0w 1.2

NOTE: Any Windows users seeing “Waiting for reboot” for too long (more than 20 seconds or so), please try “shaking” the JB process by unplugging then replugging your USB cable (while letting redsn0w continue to run). Also, try using a USB port “closer” to your computer (as opposed to on your monitor or behind another hub).
Tethered boot how to:
If you have a tethered jailbreak, and your iPhone needs to reboot, you will need to use redsn0w to reboot it. Let’s take a look at how to do it:
1. Open redsn0w 0.9.6.b4 and click on browse. Look for iOS 4.2.1 that you saved on your desktop and select it…
2. Now, select ‘Just boot tethered right now’ and click next…

3. Follow the directions on the screen to put your iOS device in DFU mode…
4. That’s it. Welcome back…

How to unlock iPhone 3g, 3gs, iPhone 4 4.1 with baseband 05.14 and 05.15

Devteam has released Pwnage 4.1.3 to be used to unlock iPhone 3g, 3gs, iPhone 4  4.1 with baseband 05.14 and 05.15
Here is the tutorial
1. Load iTunes and sync your iDevice so you can backup. If you dont want to backup with iTunes, you can to it manually…
2. Download and load PwnageTool 4.1.3 Unlock Edition. You will get a pop-up window, click OK

3. Click on expert mode button, select your device and click on the blue arrow to continue.

4. In the next window, you will need to select the stock iPhone 3G/3Gs 4.1 firmware. Click on Browse for IPSW and then click on the blue arrow…

5. In the next screen you will get a pop-up telling you that you have the option to upgrade your iPhone’s baseband to an iPad baseband. Click ‘Yes’ and then browse for the iPad firmware 3.2.2.

6. In the next window select “General” and lets start customizing the firmware

6.1. In the next screen adjust the size of the partition or leave as it is and click on continue.
NOTE: You may need to increase the size of the root partition slightly. My first attempt failed at creating the IPSW until I increased the size to about 695 MB.

6.2 In the next screen you can add repositories and install any application that you want so when you restore your iDevice it will already be full of everything you need. To do this, first go to “Manage Sources” and add all the sources that you want. Now go to the “Download Packages” tab, refresh the list and select the apps that you want to be install and click on “Add to queue”. All the apps will be displayed in the “Select Packages” tab. Make sure everything is right and than click on the blue arrow to continue

6.3 In the next window you have the option to install Cydia or not. We suggest you do….

7. Now select “Build” and than click on the blue arrow to continue and start creating your custom firmware

7.1 Now you will be asked where you want to save the custom firmware. Choose your path and click on Save

8. Now wait until the custom firmware is built and saved on your computer

9. Now it’s time to put the iOS device into DFU mode. Connect your device to your computer turned ON and follow the steps on the screen

10. Once you are into DFU mode, open iTunes ( it will recognize a device in recovery mode ) , alt+restore and browse for the custom FW you just created. Wait for the restore

11. Now, load Cydia and install ultrasn0w 1.2.

Done.

What you need:

• iPad firmware 3.2.2 ( download as soon as possible. Apple might pull it )
• iPhone 3G/3Gs firmware 4.1
• iTunes 10.1
• PwnageTool 4.1.3 Unlock Edition