How to Unlock Iphone 3GS, 4.2.1(8C148a),06.15.00

Discussion in 'iPhone Tips, Help and Troubleshooting' started by hortolanyi, Dec 6, 2010.

  1. hortolanyi, Dec 6, 2010
    Last edited: Aug 4, 2011

    hortolanyi macrumors newbie

    Joined:
    Dec 6, 2010
    #1
    Hi, I have my phone running on the above mentioned specs(4.2.1 ; 06.15.00) and I would like to unlock it and jailbreak it. Please let me know what is the best(safetiest) way to do this. THanks,
     
  2. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #2
    If you jb it already with redsnow then just install ultrasnow from Cydia to unlock.
     
  3. hortolanyi thread starter macrumors newbie

    Joined:
    Dec 6, 2010
    #3
    I didnt jailbreak it yet... How to start?
     
  4. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #4
    How did u upgrade your baseband but didn't jb yet? The same tool that upgraded your bb version will jb your device. Redsnow.
     
  5. hortolanyi thread starter macrumors newbie

    Joined:
    Dec 6, 2010
    #5
    I have jailbreaked it yesterday and had the cyndia icon on my phone i clicked on it and it just blinked white(couldnt open it). I decided to restore it... When i used Itunes to restore it it got stuck in the recovery mode and I kept getting an error 1015 message. I then downloaded 4.1 used that for getting my phone in to DFU mode, then used iTunes and a custom 4.2.1 ipsw file to restore it. And now I ended up here..:confused:
     
  6. hortolanyi thread starter macrumors newbie

    Joined:
    Dec 6, 2010
    #6
    What would be your advice on jailbreaking it and unlocking it now?
     
  7. hortolanyi thread starter macrumors newbie

    Joined:
    Dec 6, 2010
    #8
  8. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #9
    If you have a new bootrom 3GS then your stuck with the tethered JB for now.
    You have to run Redsnow each time you need to restart or if you run out of battery.
     
  9. hortolanyi thread starter macrumors newbie

    Joined:
    Dec 6, 2010
    #10
    Thanks I will try this and will get back letting you know if it worked or not.;)
     
  10. hortolanyi thread starter macrumors newbie

    Joined:
    Dec 6, 2010
    #11
    One more question... I am in redsnow and i am selecting the things that i want to install.. since i already have 06.15 on my phone do i need to install iPad baseband or not?
    thanks:confused:
     
  11. hortolanyi thread starter macrumors newbie

    Joined:
    Dec 6, 2010
    #12
    Alright in this case i chose not to install it again, and that was the right decision of course...:) Now i got it set up, unlocked it with ultrasn0w trhough cydia(+2software update) and now i have an unlokced 3gs... and it even works with my foreign (european) sim card..! thanks for the link:apple::) and your help!
     
  12. nashmills macrumors member

    Joined:
    Jun 24, 2009
    #13
    My Modem Firmware (bootrom?) 05.15.04. Is this new or old please?
     
  13. hortolanyi thread starter macrumors newbie

    Joined:
    Dec 6, 2010
    #14
  14. nashmills macrumors member

    Joined:
    Jun 24, 2009
  15. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #16
    That's your baseband not the bootloader.
     
  16. nashmills macrumors member

    Joined:
    Jun 24, 2009
    #17
    Oh dear I'm not up on all the techno jargon but I followed the instructions in the link above and learned I had the newer version so will have to wait for an untethered jailbreak.
     
  17. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
  18. hortolanyi thread starter macrumors newbie

    Joined:
    Dec 6, 2010
    #19
    It should be fine if your battery doesnt die right? Thats the only downfall that you have to reboot in theteeed mode if ur battery dies?:confused:
     
  19. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #20
    Yep, pretty much.
    Maybe carry an external battery pack with you or a charger just in case.
    Other than that you can still survive with it.
     
  20. odusk macrumors newbie

    Joined:
    Jan 30, 2011
    #21
    how to unlock iphone 3GS 4.2 already jailbroken

    i need some expert advice as in how to unlock my iphone. its a 3Gs Version 4.2.1 (8C148a) with modem firmware 05.15.04.
    Its jailbroken with the help of redsn0w_win_0.9.6b4. but i am unable to unlock it. pls help.
     
  21. Crystal-RX macrumors 68030

    Crystal-RX

    Joined:
    Dec 22, 2008
    Location:
    Seattle, WA USA
    #22
    Ultrasn0w doesn't work on baseband 05.15. If you want to unlock your phone now, the only way is to upgrade your iphone baseband to 06.15 which is Ipad baseband, then unlock with Ultrasn0w 1.2. However, before you do so, please read. A good place to start is dev team blog.
     
  22. Shelly02 macrumors newbie

    Joined:
    Jan 30, 2011
    #23
    If anyone knows a safe way to unlock my new Ipod I would be happy to find out
     
  23. rowley macrumors 6502

    rowley

    Joined:
    Dec 16, 2008
    Location:
    London, UK
    #24
    V expensive mind - just put in my details, $ 217.52 US Dollars to unlock UK o2 phone, which is fact free if you request it from o2 themselves.
     
  24. roninkhan, Mar 30, 2012
    Last edited: Mar 30, 2012

    roninkhan macrumors newbie

    Joined:
    Mar 30, 2012
    #25
    iphone 3gs 4.2.1(8c148a) 05.15.04 unlocked

    Hi,
    I have my iphone running on the above mentioned specs (4.2.1(8c148a) 05.15.04 unlocked) brought from eBay and supplier says (Do not update the firmware)
    but I would like to jailbreak it. Please let me know what is the best(safetiest) way to do this.
    Thanks,
    Amjad
     

Share This Page