How To Jailbreak iPhone 3G iOS 4.1 with Redsn0w on Windows and Mac

Written By Sam on 16 July 2010

Apple has recently released the iOS 4.1 for developers which can be used to upgade iPhone 4, iPhone 3GS and iPhone 3G. Developers having account with iPhone Dev Center can access the iOS 4.1 firmware. If you are an iPhone 3G user who doesn’t rely on Unlock then you can jailbreak iOS 4.1 on iPhone 3G. The iPhone Dev-Team has released redsn0w 0.9.5 b5-5 which helps you in Jailbreaking 4.1 Beta Firmware. iPhone Dev-Team has confirmed that redsn0w 0.9.5 works with only iPhone 3G at present. If you have already upgraded to iOS 4.1 you can download Redsn0w 0.9.5 to Jailbreak iPhone 3G on iOS 4.1.

Procedure to Jailbreak iPhone 3G on iOS 4.1 Firmware With Redsn0w 0.9.5-b5

  • Download the latest version of iTunes and update your iPhone 3G to the latest iOS 4.1 Firmware.
  • Download redsn0w 0.9.5 for Windows or Mac and also download iOS 4.0 ipsw file for iPhone 3G.
  • Now run redsn0w 0.9.5 and browse to the original iPhone OS 4.0 ipsw file.
  • Now select “Install Cydia” and click Next. You can also check the new features like “Enable Multitasking”, Enable homescreen wallpaer” and “Enable battery percentage”.
  • Now redsn0w will show you some instructions to enter into Recovery mode.
    • Hold down the “Power” button and immediately without releasing the power button, also hold down the “Home” button. Without releasing the “Home” button, release the “Power” button and keep holding the “Home” button for 30 second or until the installation starts.
  • Your iPhone 3G will reboot once it is jailbroken

If you own an iPod Touch and upgraded to iOS 4.1 then read – Procedure to Jailbreak iPod Touch 2G on iOS 4.1 Using RedSn0w

23 Responses to “How To Jailbreak iPhone 3G iOS 4.1 with Redsn0w on Windows and Mac”

  1. mike says:

    its works but it doesnt work………everything is jailbroken but when you open cydia it does its think then never closes…….if you press the home button then you cant go back into cydia just get errorssss….hope there is a fix soon

  2. karl smith says:

    will this work on the public release of ios 4.1 for iphone 3g?

  3. Tony says:

    it jailbreak needs working on because when it complete in has everything but you can make calls because the phone app in not there and when you go to contact it will not dial it to.

  4. Marcus says:

    NOT WORKING!!!!!!!!!!!! COMPLETELY MISSING PHONE APP, NO WIFI FUNCTION OR MIC AND CAMERA. do not jailbreak 4.1 yet. no luck. been trying all day.

  5. Jaxsen says:

    Evertime I click browse, and I select my .ipsw (or something like that) it says it unable to detect it or something. Why? Please Respond

  6. ookikoi says:

    Same here, no phone and no wifi. Early days.
    Shame as I need this jailbreak to install idroid and following a restore, I’m stuck with 4.1 … but lloking forward to the fixes, nice work!

  7. pick says:

    Works but no phone app.

  8. prasun says:

    jailbreaking works, but the phone icon is missing after jailbreak..any solution guys?? i had to restore the iphone again….

  9. Nick says:

    Jailbreak works but after this… lots of problems.
    Wi-Fi connects but unable to browse or get mail. No Internet connectivity at all.
    Phone app is missing.
    I had to put the phone in DFU mode and restore to iOS 4.1 without jailbreak to get things working again.

    • mhabaka says:

      how come dev team issue the new redsn0w update without checking on 3g first. cydiw not working with this white icon. & no phone in the iphone.

  10. SZABI says:

    If you haven’t Phone icon, you can use other contact tools from Appstore to make phonecalls, for example POWERCONTACT.

  11. etobar says:

    I have same problem. After jailbreak everything runs fine, but phone app missing. I’ll try to recover it.

  12. Peter says:

    I successfully jailbroke my ipgone 3g.
    I was on os4.1 and i jailbroke using os4.1.

    Everything works fine.

  13. Chuti says:

    i´m just waiting for reboot but there is no respond from my iphone whats wrong?

  14. Mindy says:

    After jailbreaking my iphone that had os4.1 on it, I had the same problems: no phone icon, wifi wouldn’t work, and phone wouldn’t turn off. I tried to restore but kept getting an error message. I had to go into my settings, press “reset” and “erase all the content and setting” on my phone before it would allow me to restore it. Phone is back to normal now.

    • Andrew says:

      Thanks Mindy, I was worried for a few hours when the phone would not restore or downgrade. The ‘erase all content and settings’ allowed me to get 3.13 back to start over

  15. Eutychos says:

    My cydia could nt work …..

  16. owen says:

    Thanks Mindy, I have your problem exactly and have tried hours trying to restore without realized I have to erase all content and settings (I did use reset but it does not work). Now I have restored my phone. Thanks. And guys, the jailbreak don’t work for OS4.1, don’t waste your time trying it yet.

  17. Tom says:

    It doesn’t work i downloaded the 4.1 software and in the program I open the map but it says empty nog IPSw file.
    Does somebody know?
    thank you Tom

  18. logan says:

    i cant even select the firmwaqre file sfter i browse in redsnow, it just digs further into the file untill theres nothing left?

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