如何越狱使用Windows 7和redsn0w运行4.2.1固件的iPhone 3G。

32 comments

1. my phone is in dnf mode but it says no device detected. I dont have any apple products installed on my pc including itunes. Im on windows 10

2. Still works in 2019 that’s epic

3. Thx man! :]

4. I'M NOT ENTERING DFU MODE? WHY??

5. do you install iTunes??

6. Does it still work? and on Windows 8? …. 

7. My iphone will not turn on!!! What should I do?

8. Thanks Bro!!!! YOur the best!!! 

9. i can't,i download redsnow and the firmware but is dont work:( help me plis 

10. thnx man helps alot  !! but i got question i upgrade my 3g to ios7 succesfully installed but then cant search networks 🙁 but ryt now im using 4.2.1 ….
    any solution with that ?

11. hy, i get stucked in 6:41 , replacing Kernel… what can i do?:(

12. Hello 123myIT when I download my firmware it does not have the same icon and I cant select it with redsnow I need some help thanks again.

13. perfect! thanks, your  a great teacher 😉

14. thanks it worked 

15. hi sir .. i have a little situation right now about an iphone 3gs .. the camera is not working , stuck at shutter and the wifi is stuck on searching so i tried to restore it on ITunes and then an error came by "1015" .. and now the phone is stuck on the recovery mode which is the screen is stuck connecting to itunes .. can you give some advice to fix it .. TIA ! GOD BLESS!

16. i do all of this steps but icon of cydia non apper in my phone after install jailbreak and when connect my phne with i tools said NO JAILbreaK ???
    please help me 

17. after 3 hours, it worked! thanks

    Problems encountered:

    1. USB communication problem 
         – had this, because i ran jailbreak on DFU mode right away.
         – fixed by making sure you run jailbreak first with the phone "ON" and connected (not on DFU mode)
         – then follow instructions
    2. !mark (bang) DFU driver not found
          – fixed by reinstalling itunes
          – installing driver manually on device manager, (browse) target C:/

    THANKS for the video mate!

    >Windows 8.1 Pro 

18. is itunes necessary ? should i download it ?

19. Hi Matt ,
    While running jailbreak it shows an error " Please provide the required IPSW"
    What should be done ??
    Tried searching the web for answers … didnt help
    Pls advise
    Thanks

20. worked great thanks

21. thank you i tried it on my own and nothing happend. i followed what you did on this video and it helped me thank you. 😀

22. Worked in the same time like on video. Followed the steps. I did it so I can use Skype and Viber on it. That is next. Thank you! After this Cydia had 8 updates when I tried to get Appsync and I get POSIX Connection reset by peer… I'll just live it to run all of it.. maybe it just needs time.

23. hi there,  i downloaded the firmware,  (iPhone4,1_5.1_9B179_Restore) but don't know how to get inside the iphone. when i try to open the software it end with itunes.

24. Hey @123myIT , I also Do this In my iphone 3g, but when i turn it off , it shows the apple logo , then i do the jailbreaking , and it didnt work. please Reply , My iphone is also 3g and having An Ios 4.2.1 firmware.

25. Hi, I had been trying for days to get jailbreak to work. Found your Utube video and followed your instructions. IT WORKED 1st time. You are a star. Thankyou.

26. nevermind its redsnow right

27. whats the site to do it

28. can you get any thing when it is jail broken

29. does it work on an ipod touch 3g???

30. hi, i have a question, i am on base band 06.15.00 with firmware 3.1.3, can i update that firmware to 4.2.1 using redsnow jailbreak straight from 3.1.3 to 4.2.1???

31. does anyone know how to carrier unlock it with redsn0w?

32. Cydia doesn't open,what do you do now?

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