How To: Jailbreak iOS 4.3.4 With RedSn0w 0.9.8b3 On iPhone 4/3GS

This guide will show you how to jailbreak iOS 4.3.4 tethered on iPhone 4 and iPhone 3GS using RedSn0w 0.9.8b3. For more information about a tethered jailbreak, click here.

Noted from the Dev-Team:

  • For the convenience of kernel hackers like @comex and @i0n1c, we have a new redsn0w0.9.8b3 that supports a TETHERED jailbreak for iOS 4.3.4 on all devices that have 4.3.4 except the iPad2.
  • The vast majority of people will want to stay back at 4.3.3 because that’s where the untethered jailbreak is!
  • There are no new features in 4.3.4 — only fixes for jailbreak exploits.

Step 1) – The first thing you will need to do is download RedSn0w 0.9.8b3 and iOS 4.3.4 from our iJailbreak Downloads Section (click here).

Step 2) – Upgrade/Restore to iOS 4.3.4 via iTunes (NOTE: iOS 4.3.4 will update your baseband which is NOT unlockable right now).

Step 3) – Once you have downloaded RedSn0w 0.9.8b3 to your desktop, you will need to launch it. Do this now by clicking the executable file (for Windows) or by clicking the application (for Mac OS X).

Step 4) – Once RedSn0w is up and running, you will simply need to browse for the iOS 4.3.4 firmware.

Windows Note: Your iDevice’s firmware files are stored in the following directory:

Windows Vista & 7: C:UsersAppDataRoamingApple ComputeriTunesiPod Software Updates
Windows Xp: C:Documents and SettingsApplication DataApple ComputeriTunesiPod Software Updates

Mac OS X Note: Your iDevice’s firmware files are stored in the following directory:

~/Library/iTunes/iPhone Software Updates

If you can’t find your iPhone iOS 4.3.4 firmware file, you can download your corresponding firmware file by clicking here.

Once you successfully select your firmware file through RedSn0w it will say “Processing firmware” then “IPSW successfully identified”.

Click the next button to continue (when you do this RedSn0w will begin preparing jailbroken data).

Step 5) – The next screen you will be brought to is a screen that features multiple checkboxes. The only checkbox that must be enabled is Cydia (as this is the default jailbreak installer); the rest of the checkboxes are optional and should only be checked if you know what you are doing.

When you have ensured “Install Cydia” is checked you can click the next button.

Step 6) – From this next screen the only thing left for you to do is put your iPhone into DFU mode. You will need to make sure that you turn your iPhone off, and you plug your iPhone into the computer before clicking the next button.

Once you have done this, click the next button and follow the on-screen instructions.

Step 7) – Once your iPhone is into DFU mode, RedSn0w will handle the rest of the jailbreaking process. You just need to sit back and watch RedSn0w perform its jailbreaking magic. Once your iPhone is done being jailbroken, you should see Cydia on your SpringBoard. This means the jailbreak has been carried out successfully. Congratulations on jailbreaking your iPhone 4/3GS tethered on the iOS 4.3.4 firmware.

NOTE: How to boot tethered jailbroken iPhone 4/3GS after reboot, launch RedSn0w and select “Just boot tethered right now”.

Let us know if you were able to jailbreak your iPhone 4/3GS with RedSn0w 0.9.8b3 in the comments section below. Also if you experienced any difficulties please share them with us and we will try our best to help you out.

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  1. Sjataylor says:

    Managed to jail break my 3GS but cannot open Curia icon on springboard? Just a White icon? Any ideas?

  2. Hey Sjataylor,

    Try this link

    Let us know if it worked for you.

  3. Hey Sjataylor,

    Try this link

    Let us know if it worked for you.

  4. Pdacosta2013 says:

    will this also work for the verizon firmware update?

  5. Nathaneel says:

    @d179f7ce13a588f4e72bb3d879fd970a:disqus  you need to reboot your device using redsnow just boot now tethered. . . it should work. . . just btw thanx guys i managed to jailbreak my device with your instructions. . . keep up the good work. . .

  6. JIMENEBAHEN says:

    I went through the whole jail breaking process with no prob. i also reboot tethered my device, i even got to see the little pineapple on the screen ( i thought it was a good sign) when everything was done my iPhone when straight back into recovery mode. its been stuck like that for the last 5 days. dont know what else to do.. PLEASE HELP!!!!!!!

  7. Robertpejkovic says:

    recovery or dfu mode?
     in c/windows/system32/drivers/etc finf file hosts and open it with admin privilege in notepad and  delete ip adresses that have apple in name
    u should be able to restore than normal in itunes

  8. I was able to jailbreak my iPhone 4 (with firmware 4.2.9) using this. I followed the steps correctly. Now, when I need to restart my phone (to install Winterboard), I don’t restart it. I turn it off and put it into DFU mode, run redsnow, and click “Just boot tethered right now”

    It shows a pineapple like it did when I first jailbroke it, except this time it stays there for about 10 minutes then it switches to the apple logo and stays like that until I restore it from iTunes.
    When I restore it, I have to redo everything I just did, and I still have not accomplished getting Winterboard on

    I attempted this about 6 times today, and no successful attempts.

    Does anyone know the problem?

  9. rushiti says:

    my phone show cydia but donnt work every my safari has stop working

  10. Simpsons1302 says:

    yea i have the same problem did you fix it

  11. Giannirossonero says:

    after downloading an app, it says I need to reboot my iphone. I did that and afterwards it has jammed, the only thing I see at the moment is the apple logo and that’s it.

  12. Puneetvirk16 says:

    i jailbreak iphon4 4.3.4 but it stuck on apple logo or repeat booting please help

  13. when i press cydia, i return to my desktop. why i can’t use cydia? HELP!!

  14. i jailbreak iphon4 4.3.4 but it stuck on apple logo with loading circles please help me.

  15. I used RedSn0w 0.9.8b4 instead of RedSn0w 0.9.8b3..  is that the problem?

  16. i can fix it now~ tyty
    just boot tethered right now<< xD

  17. I got the Cydia icon.  Then. i install the installous. However, when i come to the step, rebooting my iPod Touch 4G after having installous, i can’t reboot my iPod!.. my iPod stops at the Apple Logo… HELP :(

  18. After following the steps I tried to download an app it reboot I plugged it to the computer & my ipjone4 isn’t popping up on iTunes please HELP ME!!!

  19. Evan_lang says:

    Why my iphone always need to boot tethered ???


  21. Budyboy40 says:

    Read the damn post… You have to follow the steps on Redsn0w.
    1. Restart your iPod by holding down the lock button and the home button
    2. Let go of the home button and it will turn off.
    3. Plug it in and then boot tethered with Redsn0w

  22. Lieuwkill says:

    I’ve got the same problem, anyone got a workaround yet?

  23. why is it that we cant jailbreak our 4.3.4 iphone version perfectly? why do we need to boot it again in tethered mode if its stuck on apple logo?  can someone fix these errors so that we can jailbreak our device smoothly and use it without problem? thanks..

  24. stuck on apple logo and photos showing usb cable… help please

  25. did you fix it?

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