3.1

Download Custom Firmware ipsw files for iPhone 2G, 3G 3.1 [Windows/Mac] , Error 1600 Solution Updated

Kiran Konathala • September 15, 2009 • 3 min read

iPhone 3.0 Jailbreak Unlock

UPDATE : A new version of custom firmware 3.1.2 for iPhone 2G/3G/3GS is now available here!

UPDATE : If you get a 1600 error while trying to restore to a custom firmware here, try this.

iPhone 2G and 3G users can now safely update to 3.1 firmware without updating the baseband (for unlock). If you are not the one to download all the various files and just want the ultimate result, these files are waiting for you to download! If you rather want to start from scratch, download Pwnage 3.1 tool for Mac.

  • Caution #1 : Please proceed further only if you have an iPhone 2G/3G. iPhone 3GS files can be downloaded here.
  • Caution #2 : A restore is going to wipe the iPhone clean. Hence, please backup your iPhone using iTunes and then proceed.

More info about these custom firmware files : Has factory boot logos (Apple and restore cable), Only Cydia, No Icy, Default root partition…

Step 1a) Download Files for iPhone 2G (Please read the following carefully)

OR


Step 1b) Download Files for iPhone 3G (Please read the following carefully)

OR

Step 2) Join the downloaded files

  • The files downloaded above have an extension .001 and .002. They need a special opensource (free) software HJSplit to join.
  • Download HJSplit to join both the files – Link for Windows Computers here and Macs here.

Step 3) Restore the firmware in iTunes 9.1

  • You should now have the respective firmware file with an extension .ipsw . Please follow the steps in order.
  • Launch iTunes and connect the iPhone to your Mac / Windows computer.
  • If you are aware of DFU mode, proceed further. If not, watch this quick video and pay close attention to the steps to achieve DFU mode.
  • Turn your iPhone off. Press and hold the Home button and the Power button at the same time for 10 seconds.
  • After exactly 10 seconds release the Power button. Continue holding the Home button until iTunes pops up a message saying that it has detected an iPhone in recovery mode.
  • The iPhone will show you a blank screen (black).
  • Click on ‘Ok’ to the prompt displayed and hold Option key on your Mac and then hit Restore button. For Windows, hold the shift key and then hit the restore button. In the dialog box that pops up, browse the downloaded custom firmware file.

Step 4) Give it few minutes to perform the restore. Once the iPhone is up and running, proceed for software Unlock using Cydia. Follow this guide to install Ultrasn0w to software unlock your iPhone 3G. iPhone 2G is already unlocked with this custom firmware!

You are now good to go! Post a comment if you are stuck at any of the steps described above.

238 Discussion Comments

    1. Thanks for the quick reply,
      yeah i agree, i dont care about the logo just the MMS functionality.
      so just reopen itunes and put the phone into recovery mode and re-shift + restore and choose this merged file i downloaded from this page?

  2. Thanks it worked perfect, i had a locked iphone which was jailbreaked before and restored on itunes with 3.1 and locked again but I succeed with unlocking by this posts.
    Thanks a lot guys.

    1. ok I am going to do that now….since I am not going to restore from back up, I want to back up my contacts…

      i hate itunes because it syncs alllllll the windows contacts that I have! is there an easier way to back up contacts?

  4. Oh no, still didnt work even though I didnt restore from backup!
    Should there be something in the "Network" field? it says NOT AVAILABLE.

    Also, originally i had my 2G then my friend gave me her 3G so i just swapped the sim card. When I initially called the AT&T lady said the problem was my plan was set up for the 2G not the 3G. But when I chatted with livechat they helped reset the IMEI settings and told me to get the new sim card, which did not help.

    I am not sure what to do!

  5. Could my problem how my plan is set up?
    My plan was set up with the 2G and I just swapped sim cards in about June to my new 3G. Could they be blocking my MMS cuz they show I am paying for 2G service?

    1. just got off the phone with AT&T…
      turns out they had some provision on my account that needed to be turned off in order to have the MMS work..
      now I am good to go!

  6. I'm confused. I have an at&t plan but I do not have an iPhone plan. I am currently on 3.0 with a 3g but would like to upgrade to 3.1. And I wish to preserve my 4.26.08 baseband. Which custom firmware do I choose?

    2. You may try the Unactivated firmware since you are on AT&T already. It should get the signal even without a plan. In the worst case if it doesn't work, you can then try the Activated firmware but it is highly unlikely for it to not work.

  8. hi,
    could you please help me here, i have an iphone 3G 3.1 that i jailbreak using your tutorial 🙂 i wanted to use a Tmobile sim card instead of my original AT&T plan one, but it seems i cannot unlock yet ( Ultrasnow not working for my bootlouder 5.08)
    my question is, if i use a different AT&T sim card then my original one, would it work on my Iphone?
    thanks much

          3. is the newer version of quickpwn will jailbreak and unlock but that's only for MAC users. if so is there a link for it please?
            appreciate your replies 🙂

        1. I tried swirly as well, I told them I swapped my sim card from my iphone to my older razor so I needed MediaNet to work, but they finally told me they wouldnt do that for the iphone.

  10. Did you have an original 2G (and data/txt plan) and end up grabbing a 3G without a new contract and not tell AT&T?

    I did, my friend gave me his "old" 3G when he got the new 3GS, so i swapped my sim card from my 2G to my 3G, thinking that all the features wouldnt work, but they did! that was this summer…..until 3.1 update.

    I did the above, however I put the phone in recovery mode (holding home for a few seconds then attach USB with iTunes running) which worked, rather than DFU mode. No MMS. Failure everytime and I would receive viewmymessage.com txt. So I chatted once, lady reset my IMEI number and told me my sim card was bad, so I grabbed a new one and still same problem. I called and a nice girl said "sorry! there was some provision blocking your account, I took that off and now MMS will work." She sent a test pic and it worked! For a day! Then I called back and said wtf! and the next girl was nice and said "sorry! her she must not have saved the settings! I will reapply what she did." She sent an MMS and it worked! For a day again….the next day i called saying wwwwwwwtfffff and i got transfered to tech support, and they told me right away it was because my plan was for a 2G, and that I needed to upgrade to the 3G plan ($15 more) in order for MMS to work…I was pissed and said "no way, I was told already blah blah" and they didnt give a crap!

    Bottom line….if you had an original 2G and then put your sim card in a 3G, or you have a 2G data plan, dont expect MMS to work!

  12. Pingback: Custom Frimwares - iPhoneinfo.se - iPhoneforum i Sverige
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    1. try all the following together:
      – use an original apple usb cable (the ones that came with the iphones)
      – close itunes and any other program and restart your computer (mac of pc)
      – if it is the first time u jailbreak, then u should ude the DFU mode. if not then just turn of ur iphone, plug it in itunes and run the custom firmware
      – try all the above again
      -and again (i ve tried all combinations many time and suddenly it worked)
      if that doesn't work (mostly because u would be on a pc) find a mac and do it again
      there could be many raisons for getting the 16** error, so u may wanna check the custom firmware and re run it with pwnage tool

      good luck

  18. had to reload my iphone 2G
    was very worried how to do this
    came across ilikemyiphone on the net
    downloaded custom firmware3.1 PC o/s XP
    and bingo happy iphone and very happy me
    big thanks to you all
    it work great cant thank you enough
    Paul

  19. Pingback: Custom Firmwares - iPhoneinfo.se - iPhoneforum i Sverige

  22. go to settings and than network and turn off 3G if you are using it with t-mobile or other networks that doesnt support iphone's 3g netvor system

  24. hi , in the instructions it is written to "Step 3) Restore the firmware in iTunes 9.1" how do you restore in the firmware in itunes 9.1 ? and i tried to unlock it , it didnt work .
    2G , 3.1, XP , 7C144

  25. noob here in india bought iphone 3gs from Australia factory unlocked. version was 3.1 upgraded to 3.1.2. model no is mc mc131x modem firmware 05.11.07. which version should i download and has anyone tested the custome firmware on above model.

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