Redsnow 0.9.6b4 Jailbreak for iOS 4.2.1 Brings Cydia to 4.2 Firmware

Cosmin Coman on November 24, 2010 with 179 Comments
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The new version of Redsnow 4.2.1, 0.9.6b4, is the new jailbreak tool for iOS 4.2.1 for all iDevices. Redsnow finally brings Cydia to 4.2.1, the first working Cydia for iOS 4.2 anyway.  (If you are looking to jailbreak a different firmware version click here.)

Until now, redsnow jailbreak was permanent, allowing users to jailbreak their iDevices once, and stay jailbroken until a software restore or update. For iOS 4.2.1 this is no longer available, and if you jailbreak your iPhone, iPad or iPod Touch running iOS 4.2.1 with Redsn0w, every time you reboot your device you need to boot into a “jailbroken state”. This is called a thetered jailbreak and it’s the only one available ( until now).

However, the older Apple devices can still be jailbroken un-tethered using Redsnow 0.9.6b4 Jailbreak:

The following devices can be jailbroken thetered using Redsnow 0.9.6b4 Jailbreak:

  • iPhone 3GS new bootrom
  • iPhone 4
  • iPad
  • iPod Touch 3G
  • iPod Touch 4G

Warning! Do not update your iDevice to iOS 4.2.1 if you need to unlock! Stay away of this update and redsnow until the new version of ultrasn0w is released ( sometime in the following week)

Follow the tutorial below to jailbreak your iPhone 4 3GS 3G, iPad or iPod Touch running iOS 4.2.1 using Redsn0w.

  1. Download iOS 4.2.1 for your device.
  2. Restore your iDevice to iOS 4.2.1 using iTunes
  3. Download Redsnow 0.9.6b4 for Windows | Mac.
  4. Run Redsnow 0.9.6b4 and choose your desired firmware ( iOS 4.2.1 for your device)
  5. Select “Install Cydia” and any option you might want.
  6. Turn off your iDevice and connect it to your computer via USB and click NEXT
  7. Follow the instructions prompted by Redsnow 0.9.6b4 to enter DFU mode.
  8. Let Redsnow work its magic. When  the process will be finished your device will restart and you’ll be able to enjoy your jailbroken iOS 4.2.1

For the devices listed above under the thetered jailbreak [ iPhone 4, 3GS ( old bootrom ), iPad and iPod Touch 3G, 4G ] you need to run Redsnow and select “Just boot thetered right now” every time you reboot or you want to SSH.

Follow 2-soft for more iPhone, iPad, iPod Touch hacks and news about un-thetered jailbreak and unlock for iOS 4.2.1

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about the author

Cosmin is a smartphone enthusiast that writes articles for our iPhone and Windows Phone 7 departments and he provides the latest jailbreaks and unlocks releases as well as hot news about Apple or Microsoft. His best friend is his iPhone 4 and he is always comparing smartphones with Adu.

Discussion 179 Comments

  1. Nowy Redsn0w 0.9.6b3 ! Jailbreak 4.2 i 4.2.1 November 24, 2010 at 1:00 PM

    [...] Redsnow 0.9.6b4 Jailbreak for iOS 4.2.1 Brings Cydia to 4.2 Firmware Komputer: toshiba,win7 Ult. 64bit Telefon: IP 3G 16gb Cytuj   [...]

  2. Ryan November 27, 2010 at 9:15 AM

    Hallo, good tutorial! I have a jb iPhone 3G at 4.1. I've gone through the steps, using redsn0w 0.9.6b4 for windows, on Windows 7 but in XP compatibility mode (as recommended), used ipsw file for 4.2.1 that i had downloaded (but not updated to) using iTunes and pointed redsn0w in its direction, and all seemed well, the phone booted up ok... but it booted to the same fw version that I had before, 4.1 (this is confirmed on the device itself at Settings --> General --> About and through iTunes itself). I've tried this twice (the first time was using the ipsw file downloaded from this site).

    • Cosmin Coman November 27, 2010 at 11:26 AM

      The download link is official from Apple, so there is no issue with the IPSW file. Try restoring from DFU mode and be sure you have the latest version of iTunes installed

    • Adrian November 28, 2010 at 1:20 AM

      Did you update "normally" to 4.2.1 using iTunes first before trying to jailbreak?

    • daniel December 17, 2010 at 4:35 PM

      just jailbreak with limera1n if your on 4.1 it's also untethered

    • Ryan Salomon December 17, 2010 at 8:40 PM

      Thanks everyone for the good suggestions!Usual 'pebcak' situation... Adrian hit it: I was an idiot and skipped the 'updating completely normally' step. I saw that in another forum and reread the full instructions and saw that. D'OH!! ^_^ Thanks everyone!I did the required steps and was able to fully JB to 4.2.1. I did end up encountering an issue that many others saw (and a fix), so I'll share in case anyone else was bit by this and didn't see the solution:This affects iPhone 3G and iPod Touch 2G users on jb 4.2.1:(multitasking was installed) Springboard would crash into mobilesubstrate safe mode when switching to another open app, or when switching to an app while in another one (like opening a link for Safari within an email on Mail.app).The fix: 1) Make sure you have OpenSSH server installed, and a command-line editor like nano or vim 2) SSH into your device 3) 'cd /System/Library/CoreServices/Springboard.app' 4) Run nano or vim on N82AP if iphone 3G, N72AP if ipod touch 2G 5) look for opengles-1 6) Change it to a 2 so it looks like opengles-2 7) Save the file 8) Respring (if same thing happens then reboot)

      • didntwork December 23, 2010 at 5:20 AM

        oh thanks. now it doesnt even boot.

      • Dogroll February 2, 2011 at 6:45 PM

        Shot bro, Works well now. Cheers

      • Crystal February 11, 2011 at 9:09 PM

        Oh wow. Even having little clue as to what we're doing, your directions were clear and specific and got us through the fix. Works great and the screen/app transition is kinda cool too. All to say: thank you!

  3. paulo November 29, 2010 at 4:27 AM

    hello i have successfully jail broke my IPHONE 3g... but has no sevice.. everything went well.. until the no sevice thing pops up.... hope you can help thanks///

    • Cosmin Coman November 29, 2010 at 5:09 AM

      This means that your iPhone 3G is locked with one particular carrier. You need to unlock it using ultrasnow 1.2 unlock

      • Nancy November 30, 2010 at 5:24 PM

        I have downloaded and installed the ultrasnow 1.2 unlock and it still doesn't work....i can't figure this out!! Please help! :)

      • Cosmin Coman December 1, 2010 at 3:33 AM

        What iPhone do you have Nancy?

      • w3nde February 12, 2011 at 7:33 PM

        Hi cosmin. prior to installing untrasnow 1.2, i was only able to see bares (no network)... after installing and rebooting, i'm seeing "Searching...." It is still searching an hour after installed. any idea? thanks

      • w3nde February 12, 2011 at 7:33 PM

        Hi cosmin. prior to installing untrasnow 1.2, i was only able to see bars (no network)... after installing and rebooting, i'm seeing "Searching...." It is still searching an hour after installed. any idea? thanks

  4. Upgrade iPhone 3GS / 3G baseband to 06.15.00 for Unlock | Redsnow 0.9.6b5 November 29, 2010 at 5:21 AM

    [...] you want to simply jailbreak your device you should follow the redsnow 0.9.6b4 tutorial for Jailbreaking iOS [...]

  5. PwnageTool 4.1.3 jailbreak for iOS 4.2.1 | Update iPhone 3G / 3GS to iPad Baseband November 29, 2010 at 6:21 AM

    [...] unlock your iPhone 3GS or iPhone 3G, because it involves some risks and Jailbreaking iOS 4.2.1 with redsnow 0.9.6b4 is easier and [...]

  6. Redsnow 0.9.6b6 & SAM allows you to activate your iPhone 4 3GS 3G running iOS 4.2.1 / 4.1 officially, and bypass all the battery and push problems. December 3, 2010 at 3:29 AM

    [...] Jailbreak your device using Redsnow 0.9.6b6 by following the tutorial posted here. [...]

  7. fred December 10, 2010 at 1:33 PM

    so I downloaded redsnow. I upgraded to 4.2.1 but when I browse for the 4.2.1 using redsnow I can't find the file! where am I supposed to look? when I upgraded thru itunes it did not give me an option to download the firmware in a specific place where I can always retrieve it at my leasure.. help!

    • soap December 14, 2010 at 11:56 AM

      im having the same problem too

      • soap December 14, 2010 at 12:14 PM

        i think you have to download the software through this site and save it to your desktop

    • LalO January 24, 2011 at 11:01 PM

      Having trouble finding Ipsw seems like a lot of people have the same problem,also can't find it when degrading( I'll try another cp tomorrow )

      • Cosmin Coman January 24, 2011 at 11:58 PM

        You need to run redsnow in compatibility mode or as an administrator depending on your OS

  8. Jack December 12, 2010 at 11:14 PM

    is there any success story for iphone 4 ?

  9. kelly December 13, 2010 at 6:44 PM

    I am trying to jailbreak and update my phone the baseband 6.15.00 but i had successful update the bassband but the cyndia application do not show up after i try for a few times follow the guide above.WHat should i do? I am using PC, vista and i had run redsnow as administrator.

    • Cosmin Coman December 13, 2010 at 10:15 PM

      Did you select install Cydia? What iPhone do you have?

  10. student scholarship December 14, 2010 at 7:27 AM

    My cousin recommended this blog and she was totally right keep up the fantastic work!

  11. GFB December 14, 2010 at 11:46 AM

    iTouch 3G - iTouch was already at 4.2.1 so downloaded and saved the firmware then downloaded Redsn0w. I extracted Redsn0w to the desktop and tried to run but it fails to identify the *.ipsw. I've used this sites link and no luck with either... Can anyone shed any light for me? ChrZ G

    • GFB December 15, 2010 at 2:48 AM

      Not sure what I was doing wrong but re-downloaded and now jailbreaking...

      • GFB December 15, 2010 at 3:20 AM

        Now got a bigger prob... Redsn0w stuck:>Please wait while your device is being processed. >Exploiting with limera1n >(progress bar frozen for about an hour on 11 bars)HELP(?)!

      • GFB December 15, 2010 at 11:12 AM

        Nope, no good - can't get it to jb 4.2.1 Will have to wait for something new...

      • Cosmin Coman December 17, 2010 at 1:42 AM

        soon there will be an unthetered jailbreak for al devices, i think it will be released before Christmas, so stay tuned

      • GFB December 17, 2010 at 6:32 AM

        Well the saga goes on... I have now reverted back to 4.1 and used Sn0w****** to Jailbreak - all done. Now resotring apps, etc. If a release comes to fruition I will update my iPod and come back for the software...Merry Crimbo all who enter...

  12. dz December 14, 2010 at 9:05 PM

    I just bought a new factory unlocked iphone 4 version 4.2.1 and did jailbreak it and did cut my t-mobile sim card to fit into the mini sim slot. but the t-mobile service did not show up. What else shall I do? Please help.

  13. rz December 15, 2010 at 10:53 AM

    i download redsnow and all that . im sorry but i suks my cell is really slow and everytime y trun off my cell phone i have to plog ing my dive to my computer so it can work who whants to do that...do any body knows when is the new version and the good one is comming out cuz my cell suks. i use to have 4.1 and i updated to 4.2 . if u have any answers plis respond me at alex_alex445@hotmail.com

  14. steve December 16, 2010 at 5:34 PM

    first off not really a computer person. I downloaded redsnow and follow the steps but when i go to browse and choose firmware there is nothing in the file. I did have to extract it and it seems like it didn't extract anything.

    • GFB December 17, 2010 at 4:26 AM

      Don't know if you have already done this; but you need to download your current firmware and save it. This site is a good one for your firmware: http://www.felixbruns.de/iPod/firmware Save it to a location you'll remeber ie Downloads and when you browse from Redsn0w point it to the folder and double click your saved firmware...Hope this helps

      • steve December 17, 2010 at 7:18 AM

        cool man i appreciate it. thats wat i was missing.

  15. sinead December 16, 2010 at 5:49 PM

    Hey, everytime i get up to where my iphone says "uploading jailbreak data" my redsnow file stops working and windows closes it...anything i can do to fix this?I tried turning off the firewall and doing it, i tried doing it using redsnow b5 and still the same thing...help please

    • Cosmin Coman December 17, 2010 at 1:38 AM

      if you have Windows 7, when running redsnow, try "run as administrator"

      • sinead December 19, 2010 at 2:29 PM

        I keep getting the same error :( I have windows vista

      • Cosmin Coman December 19, 2010 at 4:53 PM

        Maby there are some issues with your PC OS. Try jailbreaking using a friend's computer, and if it works it means you have to re-install Windows

      • sinead December 23, 2010 at 12:15 AM

        Thanks i used the old computer. Now i have a question,is there any way i can unlock my iphone 3g ios 4.2 baseband 5.14...i dont want to upgrade the baseband because its irreversable. Thx

      • Cosmin Coman December 23, 2010 at 1:28 AM

        Untill now, ultrasnow 1.2 is the only unlock tool and it requires baseband upgrade. However, developers at dev-team announced that they will release a way to downgrade baseband soo... it's your call

  16. Matt December 18, 2010 at 12:55 PM

    i have an ipod and everytime the resn0w program and evertime it goes to the uploading jailbreak data.. it stops working and stays there and it wont do anything ells can some one help me?!?!?!?!?

    • Cosmin Coman December 18, 2010 at 3:08 PM

      which generation iPod Touch do you have?

      • sinead December 19, 2010 at 2:38 PM

        thats the same thing that happens to me, i have an iphone 3g

  17. Redsnow 0.9.6b7 Unthetered Jailbreak for iOS 4.2.1 Announced December 21, 2010 at 5:28 PM

    [...] your iPhone / iPad / iPod Touch permanently, which was unavailable for some devices with the Redsnow 0.9.6b4 [...]

  18. Qudsi December 22, 2010 at 10:33 AM

    does redsnow 0.9.6b4 support ipod touch 2g MC model ??

    • Cosmin Coman December 22, 2010 at 10:48 AM

      i Guess so. iPod Touch 2G is definitely supported. Give it a try and post back some feedback if you want.

      • Qudsi December 22, 2010 at 10:52 AM

        i did, but it says this redsnow does not support 4.2.1 ipod 2G MC model, what should i do ??

      • Cosmin Coman December 22, 2010 at 4:38 PM

        Then you should downgrade you iPod to iOS 4.1 and jailbreak it. Sorry, but redsnow is the only jailbreak tool available for now, and if it doesn;t work for you, you have no other alternative. You can find a downgrading tutorial in the iPhone iOS section of 2-Soft.

  19. cheem December 28, 2010 at 7:21 PM

    Hi there, I just jailbroke my iPhone 4 OS4.2.1. using RedSnOw 0.9.6b4 and succesfully installed Cydia. Problem is now the phone cant detect my SIM and I cant seem to restore OR downgrade the firmware without a saved SHSH.Is there anyway I can do a master reset of some sort to "un-jailbreak" my phone. Been at it the whole night and it's getting quite worrying.Any help would be awesome! Thanks in advanced.

    • Cosmin Coman December 29, 2010 at 12:33 AM

      you need to Activate your device using redsnow 0.9.6b5... Browse our iPhone OS section and you'll find it

  20. cheem December 29, 2010 at 12:53 AM

    Hey thanks for pointing me to the right direction.But i'm using an iPhone4. Does it work the same as well? Do I need to change the baseband as mentioned in this article: http://www.2-soft.com/2123/iphone-ios/ultrasnow-1-2-unlock-ios-4-2-1-for-iphone-3gs-and-iphone-3gOr can I just unlock using Ultrasnow 1.2?Sorry for all the questions, just hoping to use the phone asap! :D Thanks Cosmin!

    • adu December 29, 2010 at 9:07 AM

      You cannot unlock iPhone 4 yet. There will be an unlock next month, so stay tuned for more info.

  21. Shervin December 29, 2010 at 7:05 AM

    I downloaded redsnow 0.96b4 for my iphone 4.2.1 and it doesnt conect to my device the next icon is not working ??????

    • adu December 29, 2010 at 9:09 AM

      You have OS problems on your PC

      • Shervin December 29, 2010 at 1:23 PM

        I dont think so ,i use laptop. the browse icon just working.and it want to find ipsw for firmware. sholdnt i download ios 4.2.1 as the same as my iphone ver 4.2.1

      • Cosmin Coman January 2, 2011 at 8:04 AM

        Of course

  22. josh January 3, 2011 at 2:12 AM

    cant get redsnow to find my ipsw file, wtf? been at it for hours need help!!!!

    • Cosmin Coman January 3, 2011 at 3:00 AM

      Where did you download the ipsw file from?

    • adam January 9, 2011 at 12:52 AM

      im having th same prob?????????

  23. Comex’s Unthetered Jailbreak isn’t for iOS 4.2.1 but for 4.2.2 / 4.3 January 3, 2011 at 3:09 AM

    [...] and this might not be such a great news for most iDevice users, which will have to manage with Redsnow 0.9.6 thetered jailbreak for iOS 4.2.1 or Redsnow 0.9.7 unthetered jailbreak for iOS 4.2.1 if they have SHSH blobs saved for [...]

  24. Falon January 3, 2011 at 2:40 PM

    I have an itouch 2G with version 4.1 software. I have downloaded Redsnow 0.9.6b4 and it goes through all the steps until it gets to the step that says "downloading jailbreak data" and it gets stuck there. I tried it twice. What do I do??

    • Cosmin Coman January 4, 2011 at 12:58 AM

      This version of redsnow is for iOS 4.2.1

      • elad January 12, 2011 at 2:40 PM

        it happend to me too and the version is 4.2.1 on my ipod(3g) and it gets stuck on limera1n so i downloaded limera1n and it finishes the redsnow but with no cydia!

  25. jose January 3, 2011 at 7:02 PM

    Why can I not download redsn0w onto my computer? Every time I try to download it I can not find the file on my computer

  26. jailbreakaddict January 7, 2011 at 5:49 PM

    im scared my ipod touch 4gen might get bricked is that a possibility and if so is there a way to fix it/unbrick it ^plz help........ thnx

  27. jailbreakaddict January 7, 2011 at 5:58 PM

    if it does get bricked is it possible to unbrick it

    • Cosmin Coman January 7, 2011 at 8:34 PM

      Yes. Most of the times you can unbrick it. I allways get iDevices unbricked but i cannot tell you 100%

  28. adam January 9, 2011 at 12:51 AM

    ok so i have redsn0w downloaded and downloaded the firmware tht i needed and saved it to my desktop and updated my iphone but everytime i open redsnow and click browse i cnt find it anywere and i cnt get it to recognize it im looking in the folders tht its saved in but it still just doesnt show it can neone help

    • adam January 9, 2011 at 12:56 AM

      well i found the firmware but now it says its unable to recognize.can anyone tell me what im doing wrong

      • Cosmin Coman January 9, 2011 at 2:31 AM

        what OS are you using? Try using as administrator if you have Windows vista or 7

      • elad January 12, 2011 at 2:35 PM

        it happend to me too if you use google chrome it downloads it as a document

  29. PAUL January 9, 2011 at 9:07 AM

    I have iphone4 IOS 4.2.1. Am stuck at the 'emergency call only' screen since I do not have at&t sim to activate it. I have been following the discussions on different forums. I guess it was too late when I discovered I shouldn't have upgraded to 4.2.1. Is there a solution out there for me. There is no way I can get an official carrier sim as I am in a remote village in Africa. My only home is that redsn0w or whatever else will unlock iphone4 IOS 4.2.1 will be out soon. Any suggestions???? This phone now is totally unusable.

    • Cosmin Coman January 9, 2011 at 10:08 AM

      You need to hacktivate your device with redsnow 0.9.6b6. browse our iOS section anf find the tutorial and download links

  30. Redsnow 0.9.7b5 Jailbreak for iOS 4.2.1 with Working Bluetooth Released January 9, 2011 at 10:43 AM

    [...] Redsnow 0.9.7b5 still requires iOS 4.2 beta 3 SHSH blobs saved in order for it to work, and an iPhone, iPad or iPod Touch already jailbroken thetered with Redsnow 0.9.6b4. [...]

  31. GreenPoison Unthetered Jailbreak for iOS 4.2.1 Confirmed ! No SHSH Needed January 10, 2011 at 2:26 AM

    [...] Jailbreak iOS 4.2.1 [...]

  32. armen January 12, 2011 at 10:04 PM

    need HELP!i do all the steps... when i am doing the last step on redsnow hold 3 seconds then 10 secs then 15 secs it doesnt find device and says i am doing the dfu mode part wrong google or youtube how to do this.. ?

    • Cosmin Coman January 13, 2011 at 2:21 AM

      Usually if you are a beginner you need to repeat the process several times until you are succesfull. Try to leg go of power when you hear a sound from your PC

  33. armen January 13, 2011 at 5:51 PM

    tried and still nothing... i have tried several time. Also tryed downloading software from different places... I have a iphone 3g 4.2.1. that iam trying to jailbreak and unlock..

    • Cosmin Coman January 14, 2011 at 12:39 AM

      I've never heard of an iDevice that is unable to enter DFU mode... sorry

  34. Ammar January 15, 2011 at 3:41 AM

    I jailbreak my iphone 3gs i0s 4.2.1 with redsnow 0.9.6b4.I am unable to use my sim.My baseband is 05.15.04.How can i unlock my phone??????

  35. marcos andreopoulos January 20, 2011 at 4:51 PM

    need help please. Just got an iphone 4, its 4.2.1 , so i downloaded red snow 0.9.7b2 , downloaded both the ipsw for my current firmware thingy and then it gives u the options to install cydia .. ect , and apparently im supposed to select jailbreak untethered, do that , then i have to select the other file i downloaded.. which it works , then i click next.... blah blah... the end result it basically stops half way through and says "its possible your SHSH blobs aren't on the cydia server" so , what do i do... lol , as u can tell ive never had an iphone before but im doing okay , just need a bit of help.. ( as simply as u can put it haha ) thanks

    • Cosmin Coman January 20, 2011 at 10:11 PM

      You need to use another version of redsnow. You don't have SHSH blobs saved for unthetered.Just search for redsnow 0.9.6b4 or higher ( 0.9.6b5-6), or Navigate to iPhone iOS --> Jailbreak iOS 4.2.1 on our website.

  36. xab January 21, 2011 at 4:59 AM

    I had this all up and working fine. Last nite i plugged in my iphone 3gs 4.2.1 to charge when I woke up it was on the apple logo screen and locked up. I tried booting it tethered per these instructions but it gets stuck on reboot uploading kernel. Any help would be greatly appreciated.Xab

    • Cosmin Coman January 21, 2011 at 9:49 AM

      You can try entering your iPhone in DFU mode and restoring iOS 4.2.1. Afte that, jailbreak your device again fresh.You can jailbreak with a newer version of redsnow 0.9.6bx

  37. Jay January 22, 2011 at 5:28 PM

    Cosmic hoping you can help! I am an experienced jailbreaker who used Blackra1n on a 3GS 3.1.3 and completely modded it out. Just got a brand new Iphone4 on 4.2.1. I am not interested in unlocks and understand that the jb is tethered. I used redsn0w 0.9.6b6 with the apple 4.1.2 firmware, and it completes the entire jailbreak process successfully. However-no Cydia icon. I checked the Install Cydia option, and even restored my home screen layout to the default. I seem to be doing most of this right but apparently I'm missing something. How can I get Cydia to show up? Any help greatly appreciated!!!

    • Cosmin Coman January 22, 2011 at 6:19 PM

      On Page 1 reorder all your apps to the default way it was when u got your iPhone Including the new Voice memo app in the bottom right corner. Then on Page 2 have 1 app. In my case it was the facebook app. On Page 3 put all your other apps.Then Use redsn0w.This might fix your bug. If it doesn't, i suggest restoring your device to iOS 4.2.1 fresh and jb again.

  38. Jay January 23, 2011 at 3:21 AM

    The problem is the default for 4.2.1 is to have the Voice Memo app in the Utilities folder (not in the lower right) and to have the Contacts app on the 2nd page alone. This doesn't seem to follow what you are saying exactly. Am I still missing something?

    • Cosmin Coman January 23, 2011 at 4:24 AM

      You should try and arrange them like i said and see if you get some results. If yo don't than i suggest restoring and jailbreaking fresh

  39. Jay January 23, 2011 at 11:50 AM

    The problem is that I don't know exactly the page1 layout you mean - there are too many apps to leave them all out of folders and on page1. Please see this article, http://en.m.wikipedia.org/wiki/IOS_(Apple) it shows you what the real default is. Sorry to bug you again, but is there any way you can be more specific with the layout before I give up and restore? Thanks so much.

    • Cosmin Coman January 24, 2011 at 3:01 AM

      I really can't tell if this will help you even if you get it right. My advice is to reinstall iOS 4.2.1 and then jb it again fresh and you'll get the cyda icon. Hopefully. I can't say for sure because this never happened to me. But if you do find another fix for this, please post some feedback, so others know what to do. If you want you can write a guest post also.Sry i can't help you more

  40. lukeool January 23, 2011 at 1:41 PM

    does this work untethered on the mc model ipod touch 2g

    • Cosmin Coman January 24, 2011 at 2:58 AM

      Don't think so but you can give it a try

  41. martin January 23, 2011 at 5:04 PM

    i just jailbroke my itouch 4 and have the cydia app but it wont open. its just a white square. did i do something wrong? first time jailbreaker here.

    • Cosmin Coman January 24, 2011 at 2:56 AM

      All the chances are that you did something wrong, or there are some issues. Restore your iPod to iOS 4.2.1 and jailbreak it again fresh

  42. ray January 23, 2011 at 11:12 PM

    i jailbreak my iphone4 with redsnow 0.9.64b but when i off my phone and turn on back.. my iphone apple stuck at the screen..cannot load.. what should i do??

    • Cosmin Coman January 24, 2011 at 2:57 AM

      Enter your iPhone 4 in DFU mode and restore it to iOS 4.2.1 and jb it again. You mush have done something wrong.

  43. kiran January 25, 2011 at 12:42 PM

    hello brother plz help me i used redsnow to jailbreak my i pod 3..but i cant download any file my this store .. eror is comin .. some ISP eror

  44. kiran January 25, 2011 at 12:44 PM

    sry not ISP.. API Error

  45. Phill January 25, 2011 at 5:31 PM

    Having some Windows 7 issues it seems that even though my iphone is in DFU mode windows 7 dose not recognise it as such and just shows the device as a Unknown Device however on windows XP DFU mode works every time no problem has anyone else had the same experience

  46. FWEA BOY BRAD January 25, 2011 at 6:26 PM

    UMMMM I HAVE IPOD TOUCH VERSION 4.2.1 WHEN I GO THROUGH ALL THE STEPS...AT THE END IT SAYS "CANNOT JAILBREAK" WAT DID I DO WRONG??

  47. FWEA BOY BRAD January 25, 2011 at 6:31 PM

    SORRY IT REALLY SAY'S " YOR DEVICE IS A NEWER FIXED MODEL. ALTHOUGH YOU INDICATED YOUR DEVICE IS NOT A FIXED MODEL IT IDENTIFYING ITSSELF AS ONE." WAT DO I DO?? PLZZZZZZZ HELLLLPPPP!!

    • Cosmin Coman January 26, 2011 at 1:09 AM

      Is your device new? Some of the new models have their exploits fixed by Apple, so if yours is one of those, you need to wait for a newer jailbreak.Stay tuned

  48. waqas rafiq January 26, 2011 at 1:19 PM

    could u plz tell me dat why doesnt 4.2.1 jailbreak work on my itouch 3g on windows7 if u know dat which jailbreak website will work on my itouch3g

  49. waqas rafiq January 26, 2011 at 1:23 PM

    could u plz tell me dat why doesnt 4.2.1 jailbreak work on my itouch 3g on windows7 if u know dat which jailbreak website will work on my itouch3g then could u inform me. helppppppppppp meeeeeeeeeeeee plzzzzzzzzzzzzzzzzzzzzzzzzz?????????????????????????????

    • Cosmin Coman January 27, 2011 at 12:35 AM

      This jailbreak should work for you too. Try running redsnow as administrator, or in compatibility mode.

      • Karise February 22, 2011 at 7:22 AM

        Can i unlock 03.10.01 baseband? Do you have an idea hwen will apple will release iOS 4.3? Thanks

      • Cosmin Coman February 23, 2011 at 3:39 AM

        Nobody knows for sure... But it shouldn't be longer than a week or 2

  50. robert laws January 26, 2011 at 4:47 PM

    hi.. iv downloaded everything, its got to the rebooting part and iv turned it and the cydia app is blank and wont let me click on it.... any help would be apreciated... thanks

    • Cosmin Coman January 27, 2011 at 12:38 AM

      Some other people got this issue too. What OS do you have on your Computer?

  51. waqas rafiq January 27, 2011 at 3:49 AM

    cant u tell me any websites from were i should jailbreak me itouch3g

  52. waqas rafiq January 27, 2011 at 3:55 AM

    cant u tell me any websites from were i should jailbreak me itouch3g and could u tell me that Try running redsnow as administrator, or in compatibility mode means

  53. nick January 27, 2011 at 9:48 AM

    i jaibreak the iphone 4 and it does not open the phone what can i do?

  54. waqas rafiq January 28, 2011 at 5:01 AM

    cant u tell me any websites from were i should jailbreak me itouch3g and could u tell me that Try running redsnow as administrator, or in compatibility mode means

  55. Sorin January 30, 2011 at 2:52 AM

    hi , i have a problem whit my ipod 2g i can't jailbreak it ;when i have recive the ipod i have made update to firewall version 4.2.1 and now when i try to jailbreak (i folow all the steps) at the finish it say "done"but my ipod is stuck whit a blue screen and nothing

    • Cosmin Coman January 30, 2011 at 6:57 AM

      Do you use a Mac or a PC? what OS?

      • Sorin January 30, 2011 at 11:37 AM

        pc ; i dont know what means OS:P

      • Sorin January 31, 2011 at 10:24 AM

        windows xp sp3

  56. w3kinu January 30, 2011 at 5:01 PM

    Operating System

  57. waqas rafiq January 31, 2011 at 6:08 AM

    cant u tell me any websites from were i should jailbreak me itouch3g and could u tell me that Try running redsnow as administrator, or in compatibility mode means??????????????????????????//

  58. waqas rafiq January 31, 2011 at 6:10 AM

    hw do u run redsnow as administrator its not an application its a file

    • Cosmin Coman January 31, 2011 at 9:54 AM

      Right Click on the .exe file and then "Run as Administrator"

  59. rif4u February 3, 2011 at 12:49 AM

    hi bro when i download-ios-4-2-1- when i extract it asks for a password it says it is password protected can you help me with this please this is the first time im trying with my ipad...

  60. Vince February 4, 2011 at 6:54 AM

    hi,In other forums, it states that redsnow 0.9.6 is for iphone 4 4.1.. bu what i read here and other web states otherwise....Appreciate any enlightenment... cheers

    • Cosmin Coman February 4, 2011 at 7:29 AM

      Redsnow 0.9.6 is for iOS 4.2.1 only. I don't know where you read that

      • Vince February 4, 2011 at 7:39 AM

        Thanks for the info. Its tethered for now :)

      • Daniel February 17, 2011 at 8:39 PM

        Coswin, mind to email me? Have some questions to ask but don't wish to spam here.. Thanks in advance. =)

      • Cosmin Coman February 18, 2011 at 10:29 AM

        Use the contact us page and i'll see what i can do. Our support forums will be up soon too

  61. Shayne February 5, 2011 at 2:35 PM

    Hello, I have Jailbroken my iPhone 3GS with redsnow and it worked completely to the end, but Cydia wont open. It has a blank icon and i tap it and it just goes straight back to the home screen. any suggestions?

  62. ton February 8, 2011 at 5:11 PM

    i jailbreak my iphone 3g into 4.2.1 using redsnow but after finishing the screen go back again to the recovery and say must restore mode and when i tried to restore,error pop up and back again to recovery mode. pls help i dunno what to do.thanks

  63. ishawor February 15, 2011 at 10:30 AM

    hi i have iphone 4g iso 4.2.1 what i do this

  64. Caspar February 16, 2011 at 9:44 AM

    Hi. I jailbroke my iphone 4 to 4.2.1 using tiny umbrella to maintain baseband 01.59.00. However, the phone is not activated. Is there a way to activate it without a carrier sim? Thanks

    • Cosmin Coman February 18, 2011 at 10:48 AM

      Search for Redsnow 0.9.6b6 on 2-soft. That will help you hacktivate your iPhone

  65. Karise February 16, 2011 at 9:49 PM

    Can I use this but my current iOS is 4.2.6

    • Cosmin Coman February 18, 2011 at 10:43 AM

      Navigate to iPhone iOS -> Jailbreak iPhone, iPad and iPod and you'll find there links to all jailbreaks, including Verizon's iPhone iOS 4.2.6

  66. Sanna February 17, 2011 at 4:25 PM

    I am getting sooooo frustrated! Ive downloaded redsnow and ive downloaded the firmware like 4 times from 4 different places but its all the same! There are no .ipsw files! If i go into the firmware folder i just find .dfu files. I tried changing them to .ipsw files and then browsing for them with redsnow but it just says "unable to recognise specified IPSW" ...!! I am running it as administrator and in XT compatibility mode.. Wot the hell am I doing wrong!

    • Cosmin Coman February 18, 2011 at 10:39 AM

      This is the first time i hear this issue. I'll check into this

  67. Fut February 17, 2011 at 8:35 PM

    Coswin, I need to jailbreak my iPhone 4. Do I need to tick the multitasking too in your step 5.? If possible, email me.. Some questions before I I jailbreak it.

    • Cosmin Coman February 18, 2011 at 10:30 AM

      No you don't. Multitasking is for iPhone 3G

  68. Catriona February 21, 2011 at 8:44 AM

    HI im trying to jailbreak a iphone 3G 4.2.1 but every time i try to add a ipsw it wont find it in my computer so can u help me?

    • Cosmin Coman February 22, 2011 at 2:27 AM

      try running as administrator. If that doesn't work, ask a friend to let you use his computer, because i could be something wrong with your OS

  69. Ben February 23, 2011 at 9:37 AM

    my third gen ipod touch keeps getting stuck on "Exploiting with limera1n" any suggestions? im running 4.2.1 on the ipod , and using redsnow 6b4

    • Cosmin Coman February 24, 2011 at 3:20 AM

      I'll check into that and get back to you ASAP

      • Ben February 27, 2011 at 3:16 PM

        ty

  70. Sean March 1, 2011 at 9:04 AM

    Hello,I have a 3G and the jailbreak was a success. However, now the "Sections" and "Manage" tabs, everything is blank, including the Packages. How can I fix this issue? Can I simply re-jailbreak my phone to fix this problem? If so, do I have to restore my firmware before jailbreaking again? Thanks for the help....-Sean

    • Cosmin Coman March 4, 2011 at 2:21 AM

      Yea, restore agian and then try Greenpoison for 4.2.1. You can search 2-soft for it

  71. Christian March 3, 2011 at 11:44 AM

    I have a jail broken and unlocked iphone 3g with 4.2 with the ipad firmwear and when im in an app and use multitasking my iphone goes into safe mode how do i fix this?

  72. Bobkat March 6, 2011 at 11:34 AM

    Everything works up until the download. I get it into DFU and then it starts to download, but halfway through it gives me an error. Any idea what to do or if redsnow will be updated to fix that?

    • Cosmin Coman March 7, 2011 at 2:49 PM

      what error?

      • Bobkat March 8, 2011 at 6:19 PM

        It dosent give me a name for the error. All it says is redsn0w has stopped working

      • Cosmin Coman March 9, 2011 at 12:20 AM

        i'll check into that and get back to you

  73. Bobkat March 7, 2011 at 1:02 PM

    Hey, i tried to jailbreak my 2g itouch. Everything works fine until the end, and then redsnow crashes and gets an error. I followed all of the steps correctly. Is an update coming out for redsnow anytime soon to fix the problem?

    • Cosmin Coman March 7, 2011 at 2:44 PM

      there is also greenpoison, or newer versions of redsnow 0.9.6

  74. john March 9, 2011 at 8:43 PM

    i have a jailbreak thats way easier than this add kingpker12 on runescape and ask me about it!!!!!!!!!!!!!!!

  75. Bob March 12, 2011 at 1:43 PM

    Can I jb my iPad with iOS 4.3 What should I use to jb it if possible Tried latest green poison and failed please help

    • Cosmin Coman March 13, 2011 at 1:40 AM

      there isn't yet a jailbreak for iOS 4.3. Subscribe and we'll keep you posted

  76. bob March 13, 2011 at 8:17 AM

    Please keep me posted, wat software should I use to boot my tethered jailbroken iphone.

    • Cosmin Coman March 13, 2011 at 8:48 AM

      ibooty

  77. Ahmed Shaker March 14, 2011 at 5:11 AM

    Hi, Great tutorial I jailbreak my iphone 4 ios 4.2.1 yesterday. I have cydia and i installed ultrasn0w to unlock my carrier but unfortunately it doesn't work for me. some times a pop up comes up says "carrier settings update" i click update but still nothing happens. is there is any other ways to unlock my carrier i'm flying to LA soon and i need my i phone to work.Thanks in advance. Ahmed

    • Cosmin Coman March 14, 2011 at 8:44 AM

      what is your baseband?

      • Ahmed Shaker March 14, 2011 at 10:35 AM

        Thanks for the quick replay! this is my baseband 03.10.01

      • Cosmin Coman March 14, 2011 at 11:39 AM

        oh, this means bad news for you. That baseband can't be unlocked yet. But follow 2-soft and you'll be provided with a tutorial as soon as an unlock will be released

      • Ahmed Shaker March 14, 2011 at 12:30 PM

        lucky me = ) Thanks anyways!

  78. Jonathan March 14, 2011 at 8:30 AM

    I am trying to jailbreak my iPhone 3G. I am have updated to 4.2.1. When I run redsnow, I keep getting stuck at the Uploading ramdisk part. It jsut sits there. Any suggestions?

    • Jonathan March 14, 2011 at 9:22 AM

      This seems to have fixed my issue:http://www.iphone4jailbreak.org/forum/redsn0w-stuck-at-uploading-ramdisk-iphone-4-4-2-1.html

      • Cosmin Coman March 14, 2011 at 11:38 AM

        thanks for sharing that with the comminity!

  79. bob March 14, 2011 at 9:21 AM

    Do you have any idea where i could download ibooty from, thanks cosmo.

    • Cosmin Coman March 14, 2011 at 11:40 AM

      ibooty comes with snowbreeze 2.3. Download it from 2-soft

  80. bob March 14, 2011 at 1:03 PM

    okay ive downloaded snowbreeze, do i have to select the ipsw file from app data apple itunes, than will it reload the software on my iphone?, like a fresh load?

    • Cosmin Coman March 14, 2011 at 3:32 PM

      no, follow the tutorial step by step

  81. Frankie March 17, 2011 at 7:09 PM

    Hi. I have downloaded redsnow 0.8.6 and the osi but when I go to browse for my phone osi is only showing the firmware fnd the folder. I dont know why is giving me problems. Can you help?

  82. ashish March 20, 2011 at 2:04 PM

    i am trying to jailbreak iphone 4GS on version 4.2.1 i got it DFU mode but it's keeps saying its failed. i will try use redshow. i asked around they say its probely because i am using windows 7 i need use windows xp is true can u find out ??

    • Cosmin Coman March 22, 2011 at 2:59 AM

      You can run as administrator or use Windows xp compatibility mode if you think that is the fault, but redsnow works just fine on Windows 7 too

  83. Jeffrey March 23, 2011 at 12:51 PM

    Awesome!!!!!My first time doing this worked! I'm no expert too. It worked on my MB model 2G iPod Touch perfectly. Less than 10 minutes!

  84. Jeffrey March 23, 2011 at 12:52 PM

    Thank You!!!

  85. Jeffrey March 23, 2011 at 12:53 PM

    Also, Cydia works just fine!

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