First of all open the Redsn0w (N.B:- Windows Vista/7 users need to set compatibility as XP SP3, and run RedsnOw as Administrator.)
1.Start by clicking on browse and find the 4.3.4 firmware file for your device.
2.Click on next and let the firmware get processed.
3.Now check the “Install Cydia”.
4.Click on next, and it will appear that, “Make sure that your device is turned off. Prepare for DFU mode.”
5.Click on next again, and then follow the DFU mode instructions.
6.Now the process to jailbreak your device will get started.
7.When the process will get completed, you will get notice that you cannot open Safari or Cydia. Need not to worry as this is very normal for a tethered jailbreak.
8.It’s time to open redsn0w and follow steps 1 to 3 and then check “Just boot tethered for now”
9.Follow the DFU instructions, and then it will start booting your device again. 10.This time, you will notice Cydia and Safari is working.
Congrats, you have Jailbreaked iOS 4.3.4. One thing you don’t forget buddy is that this one is tethered jailbreak, which means if your device turns off or reboots, you need to boot tethered with steps 9.
