How To: Jailbreak iPhone 4, 3GS On Official iOS 5.0.1 Using RedSn0w 0.9.9b8 [Mac]

Apple released the official iOS 5.0.1 firmware yesterday to the public. This firmware update was released to fix bugs such as the battery draining bug that effected many users running iOS 5.0. Though we issued a warning not to update to the iOS 5.0.1 firmware, if you did or did not have a choice, you will be glad to know you can jailbreak iOS 5.0.1 tethered or semi-tethered using RedSn0w 0.9.9b8. The only downfall to updating to iOS 5.0.1 is that you will most likely not be supported when the untethered iOS 5.0 jailbreak is released by the Dev-Team.

Note #1: Do not update to the iOS 5.0.1 firmware if you do not need to. You may not be able to jailbreak untethered in the future.

Note #2: This does not jailbreak the iPhone 4S.

Step 1) Download RedSn0w 0.9.9b8 for Mac OS X using the download mirror below or through the iJailbreak Downloads Section.

Download RedSn0w 0.9.9b8 (Mac OS X)

Step 2) Once you have downloaded RedSn0w you will need to launch it by double clicking on the redsn0w app.

Step 3) With RedSn0w 0.9.9b8 running you will need to click the Extras button. You will now see a few buttons presented to you. The button you are interested in is the Select IPSW button. Click this now and select your devices corresponding iOS 5.0 firmware.

Step 4) Upon selecting the iOS firmware click the back button, followed by the Jailbreak button.

Step 5) After clicking the Jailbreak button ensure that the “Install Cydia” option is checked, click the Next button and you will come to a screen where you will need to put your iPhone into DFU mode. Read through and follow the instructions presented to you which is to plug in and power off your iPhone and click the next button.

Step 6) When you click the next button you will need to follow the instructions presented to you to put your iPhone into DFU mode.

  • Hold down Power (corner) button for 5 seconds.
  • Without releasing the Power button, also hold down the Home (bottom center) button along with the Power button for 10 seconds.
  • Without releasing the home button, stop holding down the power button for up to 15 seconds.

Step 7) After you successfully enter DFU mode RedSn0w will begin jailbreaking your iPhone. DO NOT interrupt or use the computer during this time. When your iPhone is finished being jailbroken it will reboot into a jailbroken state.

Optional: Booting Tethered – When you jailbreak your iPhone running iOS 5.0.1 you will have a tethered Jailbreak. Meaning in order for your iPhone to turn back on you will need to boot it using RedSn0w (this applies every time your iPhone loses power). To do this launch RedSn0w again and click the Extras Button > then click the Just boot button and you will need to put your iPhone into DFU mode again.

Note: Yes, you need to do this every time your iPhone loses power.

Optional: SemiTethered Jailbreak – Though you have now jailbroken your iPhone tethered on iOS 5.0.1, you can actually SemiTether your iPhone. SemiTethering your iPhone basically means that you will be able to still use it if it ever loses power (with limited functionality). In order to SemiTether your iPhone you will need to add the following repository through Cydia:

Search for the SemiTether Cydia package, install it and reboot your iPhone (yes, you will need to boot tethered again). If you are looking for a more detailed guide please click here.

You should now have a jailbroken iPhone 4, 3GS running iOS 5.0.1. For more tutorials visit the How To Jailbreak Section. Leave any questions in the comments below…

Don't forget to like iJailbreak on Facebook, follow on Twitter and add to your circle on Google+ to stay up-to-date on all the latest Jailbreak and Apple news!


  1. i am done this process..But my network not found now wht to do…tell me

  2. Bachok_malaya says:

    Done as instructed. But still cannot use it. Cannot boot tethered. Have Cydia icon , but cannot use

  3. Natasha Ramirez says:

    i did it but the cydia icon is in white and can’t open it

  4. Glendys Morales says:

    u have to reboot the phone using the redsn0ws. 

  5. Glendys Morales says:

    after i reboot my phone the cydia icon disappeared. No icon for calls or text messages. My phone has no SIM CARD. it had one at the time i jailbreak it. Didn’t know since i just bought it used. Help plz 

  6. Jul_saldana says:

    Please, let me know if this procedure is correct.

    I have IPhone 3GS with 5.0.1 but i need to jailbreak, because i update to IOS 5.0.1 and now is block

  7. it downloads snow as a file not program wat do i do

  8. Downloaded, when I went back to boot tethered right now I get “Fingerprint: 38b5cbcccf371f02ba2cb2215aaf4b3.” Jailbroken using Redsn0w 0.9.9b8 and ios 5.0 firmware. iPhone 3GS currently running 5.0.1….Somebody please help!!!!

  9. Unrecognizable build is what it says before the Fingerprint!

  10. i DID all this worked perfect… bu to me its untethered… everytime I reboot the phone or restart it or anything of that sort everything is perfect and as usual. Jailbrocken and working awesome. Is that normal ? I thought tethered meant every reboot i would need to use redsnow again….

  11. Mista2kool4u says:

    it want jailbreak iPhone 4 8GB Sprint.. Can someone help?

  12. Manraj Chawla95 says:

    wat to do if it isnt recognizing the ios? it says it should work with 5.0.1… I have iphone 3gs :( 

  13. Ok. I did the process but when my iphone was jailbreaking appears an error : exploit failed. Why??? iphone 3gs ios 5.0.1

  14. im half way through the process and the ‘waiting for reboot’ process is taking forever and not really loading…? can anyone help?

Speak Your Mind