1. wandalensh's Avatar
    Hey guys,

    I have an iPhone 3G 8GB. It was on 4.1 (8B117) with modem firmware 5.14.02 (never jailbroken and locked with AT&T).
    I needed to unlock it as I m not using AT&T anymore. I went ahead and jailbroke it to 4.2.1 (8C148) and modem firmware 6.15.00 using redsn0w 0.9.6b6 for mac.
    I used mac to perform the above procedure. Later, I had a working jailbroken but locked phone. So i fired up cydia (i have a wifi)) and added ultrasnow (and mobilesubstrate as it was a dependency). But the phone kept disconnecting from the wifi all the time and I couldn't get ultrasn0w to install.

    So, I used 'iphone explorer' on mac to place ultrasn0w and mobilesubstrate in the iphone directory "var/root/Media/Cydia/AutoInstall". Then I rebooted the iphone and now its completely stuck on the boot screen (white apple logo). It won't start at all.
    So, the only way i thought to get it back working was using Pwnage tool and restore using custom ipsw. I used Pwnage Tool 4.1.3 to create custom firmware.
    Then i put the phone in DFU mode for itunes to detect it. Itunes detected the phone in DFU mode but cannot restore the custom firmware. I m getting the ERROR 1600 saying the iphone could not be restored.
    So, anyone having any information which could help my situation, please let me know.

    Could anyone please point me to the right direction. Any help at all would be greatly appreciated.
    Thanks in advance
    Last edited by wandalensh; 2010-12-14 at 08:43 PM. Reason: Automerged Doublepost
    2010-12-14 08:42 PM
  2. Simon's Avatar
    You need to use pwnage tool or redsnow to put the phone in pwned dfu first before you can restore to a custom firmware.
    2010-12-14 09:08 PM
  3. PriestessNyx's Avatar
    Can someone provide link to CSF for an Iphone 3GS with FW 4.2.1 and IPAD BaseBand, But Got stuck on Recovery.
    2010-12-16 12:33 AM
  4. Simon's Avatar
    Have you already updated to the ipad baseband?
    2010-12-16 12:38 AM
  5. PriestessNyx's Avatar
    Im pretty sure I am on the I-Pad BaseBand, I tried a recovery through I-Tunes and it gave me the error 1015.
    2010-12-16 12:47 AM
  6. Simon's Avatar
    Yup, you sound like you have it already. In that case you need a custom firmware with no baseband in it to restore to in order to avoid any errors.

    Check PM
    2010-12-16 12:54 AM
  7. PriestessNyx's Avatar
    Thanks allot ill try it out and let you know how it goes.
    2010-12-16 01:02 AM
  8. Simon's Avatar
    2010-12-16 01:13 AM
  9. Greenk12's Avatar
    Hello x98car

    Can you send me a link to down load custom 4.2.1 firmware without baseband. I have the same problem like PriestessNyx

    Thank you very much.
    2010-12-16 01:58 AM
  10. Simon's Avatar
    2010-12-16 11:21 AM
  11. funnydude777's Avatar
    x98car may you please give me the same firmware as the others im stuck in the recovery as well thank you in advance
    2010-12-23 08:46 AM
  12. wandalensh's Avatar
    never mind.
    Got the phone working. I just used pwnage tool to create custom firmware (created a custom iOS 4.1.2 not 4.2.1 as 4.2.1 was giving error 1600 while restoring.)
    Then restored 4.1.2 using redsn0w and jailbroke and unlocked.(unchecked the update iPad baseband as i was already on 6.15 baseband.)
    Worked like charm.

    for the error 1015 you can use tinyumbrella(u need java for that), or u can use RecBoot. I used recboot for mac and it worked fine.
    Last edited by wandalensh; 2010-12-24 at 12:16 PM. Reason: Automerged Doublepost
    2010-12-24 12:16 PM
  13. Simon's Avatar
    Um, there is no such thing as firmware 4.1.2...
    2010-12-24 12:46 PM
  14. skywaytp's Avatar
    Dear x98car,

    I have upgraded my 3G to a custom 4.2.1 that I got from jailbreakmatrix. Baseband was also changed to 6.15 since I check "use ipad baseband".

    I make a mistake that I run redsn0w again to enable the battery percentage option. The process couldn't finished up and now my iphone 3g is lock with the cable and itune logo. No matter what I tried, still cannot get out of that.

    Please give me an advise what I should do or let me have your custom IPSW since I do not have a Mac computer to create one.

    2010-12-27 04:48 PM
  15. leha_g's Avatar
    Can you, please send me one, also!
    Lots of thanks in advance!
    2010-12-27 04:53 PM
  16. rpsstore's Avatar
    Yup, you sound like you have it already. In that case you need a custom firmware with no baseband in it to restore to in order to avoid any errors.

    Check PM
    Hello I am having the same exact problem for my 3gs can you send me the link also
    2011-01-02 05:19 AM
  17. iPhonePlus1's Avatar
    I set my friends phone up with this baseband for the unlock and he did a reset on his phone which made it locked to the "plug in itunes". So i used PwnageTool to create a custome ipsw w/o the baseband but for some reason, it still retrieved the 1600 error code. I've tried using redsn0w to jailbreak it, which went through all the steps, even showing the pineapple and everything. But when it rebooted, it locked onto the "plug into itunes".

    But it got it to work. I ran PwnageTool again, but instead of choosing "yes it haz been JB before" , I choosed No. Went through the steps and PwnageTool comfirmed that it was in DFU mode. Went to iTunes and installed the custom firmware and it worked. lol. I guess its just one of those things...
    2011-01-02 10:48 PM
  18. Simon's Avatar
    Yes, you have to use pwnage tool or redsnow to enter pwned dfu. Otherwise a custom restore will fail.
    2011-01-03 02:06 AM
  19. jordanarath's Avatar
    how can create a custom firmware???? iphone 3gs 8gb was working ok on 4.2 bb6.15 but want to restore to 4.1 to see if i can fix the gps thing. thanks
    2011-01-05 02:54 AM
  20. jehdesai's Avatar
    Hello X98car

    I have a 3gs new boot rom,just upgraded to 4.2.1 ,5.15 .then tried redsn0w to jb,it worked once but gave a white/black cydia so 'used tehered boot only this time from redsn0w,since then the fone is always like on recvery mode even after i restored the fone.
    I tried custom f/w thru pwnage but itunes give 1600 error.
    how do i fix my fone?
    2011-01-05 09:56 PM
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