Knowing

Just a quick heads-up: the iPhone DevTeam just released a new update to redsn0w which brings us to v0.9.6RC11.  Those running redsn0w may have noticed we enabled too many Settings options in some versions of the jailbreak (for instance, what you want your side switch to do, even if you have no side switch because you’re not using an iPad).  RC11 corrects that.

Along the way, they’ve also added the option to enable boot animations…these animations can be installed via Cydia, but be sure to select which animation to use via the Settings->Bootlogo setting after you’ve downloaded an animation.
NOTE: You can just run RC11 over your existing jailbreak…be sure to de-select Cydia to avoid package conflicts
Download:

• redsn0w 0.9.6RC11 for Mac
• redsn0w 0.9.6RC11 for Windows

HOW TO:
NOTE: the process is identical on both Mac OSX and Windows, and also identical with previous redsn0w releases. The images used in this tutorial are from previous redsn0w tutorial, so do not be alarmed.
1. Restore your device with a stock iOS 4.3.1 firmware. ( again, by doing this you will loose the ability to unlock!!!)
2. Run redsn0w, and click on browse. Browse for the stock iOS 4.3.1 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”
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.
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).