In this tutorial you’ll jailbreak/unlock firmware 3.1.2 for iPhone 3GS using BlackRa1n. Before continuing, please make sure that you are on 3.1.2 firmware and 05.11.07 baseband. Go to setting => General => About

If you are running some older firmware then upgrade to firmware 3.1.2.

Step 1. Go to http://www.blackra1n.com/ url, download BlackRa1n depending upon your computer (PC or Mac). If you are downloading using safari then your download will be in zip format. Unzip it.

Step 2. Connect iPhone to the computer and make sure that iPhone is turned on.

Step 3. Double click on blackra1n icon that you downloaded in step 1.

Note: you may get warning depending upon your operating system after double clicking on blackra1n icon. Click on Run.

Step 3. You will see a large button (make it ra1n) on a window. Click this button.

Step 4. Your work is done now. Geohot will do the rest. iPhone will enter in recovery mode.

Step 5. Wait for 5 mins. You’ll see jailbreak done screen. Your iPhone will reboot now.

Step 6. Unlock iPhone and check your screen. Your iPhone is jailbroken. You’ll see blackra1n icon in your iPhone’s window. Tap on the icon.

Step 7. [Optional] Go to Setting => General => Auto-Lock and make this value Never.

Step 8. Choose installer you like most and choose snow if you would like to unlock your iPhone for all the carriers.

Note: You will need internet connection on your iPhone to perform step 8.

Step 9. Wait for some time. You will see a log window after all the installations are finished.

Step 10. If you want to remove blackra1n icon form iPhone then tap on uninstall blackra1n. You’ll see delete button. Tap on this button.

Step 11. [Optional] If you have changed Auto-Lock time in step 7, then reset this value to the value you like.

Application requirement :
1. Jailbreak
2. iPhone OS 3.0

Steps to install USB drive on your iPhone
1. Open Cydia
2. Go to Manage => sources
3. Press Edit on top right corner and then press Add on left corner. A input box will appear.
4. Enter http://apt.dmytro.me and press Add Source
5. Cydia will now add entered source. After successful addition of the source, press Return to Cydia button.
6. Now tap on Done button on right corner.


7. Tap on listed source. This will show you USB Drive application and other applications from this source.

8. Install this application as you normally install any application from Cydia.
9. After successful installation of USB drive app, Launch USB Drive application by tapping the USB Drive icon on the main screen.
10. You’ll see three modes
Drive + iTunes:
In this mode USB Drive replaces Picture Transfer Protocol (PTP) interface with Mass Storage interface and lets you use the iPhone as a USB Drive. At the same time you can perform iTunes synchronization, developers can use XCode debugger ,etc. In this mode USB Mass Storage will not work on Windows with iTunes or Apple USB Drivers installed.

Default:
This is the iPhone default mode. USB Drive doesn’t install daemon application nor modify any USB settings. Picture Transfer Protocol (PTP) is active as well as iTunes synchronization and tethering over USB.

Drive Only:
This mode is to resolve compatibility issues with Windows and iTunes. In this mode USB Drive changes the iPhone’s USB product ID. This will prevent iTunes synchronization, but USB Mass Storage will work on Windows (and other operating systems). Switch to the Default or Drive + iTunes mode will restore iTunes sync.

11. Select the mode of your choice and click on Create drive

12. Enjoy your new USB drive.

I am big fan of cycorder video recorder. Recorder very well adds the missing feature of recording in iPhone 2G, 3G.
It really sucks at times when one records a video and try to play this and it displays a message that video can’t be played.
As of now there is no solution present as per my knowledge . There is some hope after seeing road map on Saurik’s site. It may take a month or two for the next release. So don’t delete your important videos, which are corrupted. You can be able to play them after a while .

iPhone 3.0 upgrade is available for general use now. This upgrade will give you lots of features which were unavailable in iPhone so far. You can get new upgrade by connecting your iPhone to iTunes and upgrade to the latest firmware.
If your are using jail broken iPhone then don’t do that. It’ll make your iPhone unusable for you. The good news is that iPhone-dev team has released PwnageTool 3.0 for mac OS. If you are using first generation iPhone then you can upgrade your iPhone to new firmware.
If you don’t have a mac system or you have iPhone 3G them wait for some more time. Team is working hard to get QuickPwn and PwnageTool on mac and windows.

You can download current release from here.

More information can be read from iPhone-dev blog.

The iPhone Dev-Team has released new versions of QuickPwn and PwnageTool for the 2.2 iPhone firmware.

You can find our newly updated tutorials here (more to come):
- Jailbreak 3G (Mac) (Safe)
- Unlock/Jailbreak 2G (Mac) (Safe)
- Unlock/Jailbreak 2G (QuickPwn Windows) (Safe)
- Jailbreak 3G (QuickPwn Windows) (Unsafe if you want to unlock in the future)
- Jailbreak 2G/3G (QuickPwn Mac) (Unsafe for 3G if you want to unlock in the future)
To read in detail click here.