How to Jailbreak iOS 5.0.1 with redsn0w 0.9.9b9d (Mac and Windows) [VIDEO]

in How-to Jailbreak by

Jailbreak your iDevice running iOS 5.0.1!

Update #17d: iPhone3GS owners in our comments section below noticed a problem with the untethered jailbreak available for the old-bootrom 3GS. We’ve corrected that problem in 0.9.9b9d. If you have an old-bootrom 3GS and have already used last night’s redsn0w on it, you can re-run it again without losing anything. Just use this new version, go to Extras->IPSW and manually select the 5.0.1 IPSW, then go back and Jailbreak it again (but you can uncheck Cydia because it’s already installed). -iPhone Dev Team


WHAT IS A TETHERED JAILBREAKA tethered jailbreak require a computer connection to boot a jailbroken iOS device. This meaning you will have to run Redsn0w and boot it up that way each time your battery dies or you need to reboot.

Devices Supported

  • iPod touch 3G
  • iPod touch 4G
  • iPad 1
  • iPhone 3GS
  • iPhone 4 (GSM)
  • iPhone 4 (CDMA)
 iPhone 4S and iPad 2 are NOT supported.

**If your device is not listed above, please do not attempt to jailbreak AND if you rely on a software unlock and don’t have an older boot rom, STAY AWAY  from iOS 5 altogether.**

What you need

How to Jailbreak iOS 5 with redsn0w 0.9.9b8 on Mac or Windows: (Watch the video for more details)
  1. Connect iDevice via USB to your computer
  2. Launch Redsn0w
    If you are running redsn0w on Windows, you will need to do the following steps before launching the redsn0w:

    • Right click on redsn0w.exe and select Properties
    • Click Compatibility tab and check the “Run this program in compatibility mode for” option and select Windows XP (Service Pack 3) from the dropdown menu.
      redsn0w compatibility
    • Click OK. Now you can launch redsn0w by double-clicking on redsn0w.exe
  3. Select Jailbreak
  4. Set your iDevice in DFU mode:
    – Turn OFF iDevice
    – Hold POWER button for 3 seconds
    redsn0w enter DFU 1
  5. – Simultaneously hold POWER and HOME button for 10 seconds
    redsn0w enter DFU 2
  6. – Let go of POWER button while still holding HOME button for 15 seconds
    redsn0w enter DFU 3
  7. Once you’ve successfully entered DFU mode, RedSn0w will identify your firmware aka IPSW along with options, like: Install Cydia, Install custom bundle, Enable multitask gestures, Deactivate.
  8. You just need to select “Install Cydia” option then click Next and let the process running.
  9. Now you will see your iDevice preparing the Jailbreak data!
    redsn0w downloading jailbreak data

    **Cydia & Safari will not work unless you do the following steps!** 
  10. After RedSn0w finishes doing its thing, you must turn off again and boot up through Redsn0w
  11. Open RedSn0w and select ‘Extras
  12. Next you will click on ‘Just Boot’
  13. redsn0w just boot
  14. Again, set iDevice in DFU like in Step 4
  15. Your iDevice will perform a tethered boot and you will be good to go!
    **Steps 7-9 is what you will ALWAYS have to do in order for iDevice to boot back up if battery dies or you reboot your iDevice. **
Joel Barron (157 Posts)

My name is Joel Barron aka JBTech! I like making informative/useful YouTube videos for my viewers! You can subscribe here: My YouTube videos consists of: - iPhone/iPad/iTouch - Modding/Jailbreaking - Unboxing's - Reviews - How-To's - Tech - Giveaways
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