Home » 3GS, 4.0, activate, Activation, Custom Firmware, Downloads, iOS 4, iPhone 3G S

Download iPhone 3GS Custom Firmware iOS 4.0 [Jailbreak, Unlock, Activate]

29 June 2010 176 Comments

CAUTION : iOS 4 jailbreak is way complicated unlike other jailbreaks. Please proceed with caution.

Requirements :

  • Jailbroken iPhone 3GS with older bootrom.
  • You haven’t used Spirit jailbreak before (for untethered jailbreak).
  • You have Windows (PC). For Mac, try Pwnage instead.
  • Please read the above requirements again.

More info about these custom firmware files :

  • [UPDATE] : You need to download files from either step 1a or 1b depending on your baseband preference. Both are unlockable, so I would go with step 1b which is the latest baseband which supposedly does better with the battery. step 1b updated with alternative download locations.
  • Has factory boot logos (Apple and restore cable),
  • Only Cydia, 831 MB Root Partition
  • Preserved Unlock baseband (Your current baseband – be it 4.26.08, 5.11.07 or 5.13.04 will stay the same)
  • Activated/Not Activated (Check the files carefully)
  • New custom firmware with the latest baseband (5.13.04 unlocked using ultrasn0w) is available in a separate direct download (step 1b). It is available for those who donate since the purchased download traffic bandwidth has been exhausted. It will be available for direct download for all when I buy more traffic shortly.

Step 1a) Download Files for iPhone 3GS Baseband Preserved (Please read the following carefully)
p.s : I am paying for these downloads (purchased RapidShare Download traffic due to overwhelming demand). Please consider donating to keep these downloads free and instantaneous.
Rapidshare charged me the maximum amount for all the downloads (more than 120GB). Got zero donations so far, so it didn’t work out. I hate to do this but you should either wait your turn for the additional traffic that I buy per day. Once donated, I will send  updated instant download links to your email. Thank you…


OR


Step 1b) Download Files for iPhone 3GS Baseband Updated to the latest version (05.13.04), still unlockable

Rapidshare has gone insane! Charging me for traffic every few hours. I have uploaded to the following mirrors. Click on the image below to download the file from 7 alternate locations.


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 9.2

  • You should now have the respective firmware file with an extension .ipsw (make sure it is .ipsw or else, it will give you an invalid firmware error) . Follow the steps in order :
  • Turn your iPhone 3GS off.
  • Launch iTunes and connect the iPhone to your Mac / Windows computer while holding the home button. your iPhone is now in restore mode.
  • For a Mac : Hold Option key 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 (the .ipsw file that you downloaded and joined using hjsplit in step 2).

Step 4) Unlock your iPhone 3GS (if need be!)

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 (for 4.26.08 baseband) to software unlock your iPhone 3G/3GS.

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

[Pwnage Tool is developed by the Dev Team. This is just a custom firmware file created using that tool especially for Windows users cos’ Pwnage tool is available only for Macs.]

176 Comments »

  • Vin said:

    Currently running a jailbroken 3GS 3.1.2 (7D11), 5.11.07 baseband with the old bootrom (iBoot 359.3). The unlocked was done with blacksn0w. I have all the requirements listed above to update my 3GS to iOS 4.0 with my 5.11.07 baseband intact. However, is it possible to restore my iPhone back down to 3.1.2 later on? (I have my 3.1.2/3.1.3 blobs stored with Cydia/Saurik and on my Mac 10.5.8).

  • Kiran said:

    You are all set for the upgrade and you may downgrade whenever since you have the SHSH blobs stored, good job!

  • Firas said:

    upgrade, and you will not regrett it… you don't have to downgrade! the iPhone is better with 4.0 and the battery life is better if you turn off cellular data

  • Vin said:

    Also: the RapidShare link for Part 1 of the ACTIVATED custom firmware yields "This file is larger than 200 Megabyte (220220 KB). To download this file, you either need a Premium Account, or the owner of this file may carry the downloading cost by making use of "TrafficShare". Possible to re-split and re-up a chunk smaller than 200MB? Many thanks!

  • Kiran said:

    I am enabling traffic share, never done that before but let me know if you can download now (I just enabled trafficshare). Please share your feedback here when done installing. Thanks!

  • Vin said:

    Awesome, Kiran—all the links work great now, thanks much!

  • Tiberiu Costin said:

    Not working , thanks

  • Carlos said:

    Hi, I follow the instructions but I'm getting the following error message "couldn't be restore because the formware is not compatible"__Please help me to fix this problem.

  • kiran said:

    What is the file size?

  • Carlos said:

    215,040 kb

  • kiran said:

    Download both the files and attach them. please follow the instructions..

  • Carlos said:

    I did it but the second part seems to me that correspond to the 3.1.3 version, not the 4, that is why the files cant join togetter (the not activated ones)

  • Kiran said:

    Fixed it…Thanks for letting me know 🙂

  • Carlos said:

    I think what is happening, you posted the wrong file in the not activated part 2, this is the second file of the 3.1.3 version.

  • Kiran said:

    Fixed it. I am so sorry, posted it when at work…

  • Carlos said:

    Thanks, now both files are ok.

  • Kiran said:

    Welcome and please share your experiences after installing…

  • SHiNBo said:

    how about something other than rapidshare… its terrible

  • kiran said:

    I already enabled trafficshare on them. That is the best I could do.

  • azer said:

    http://www.megaupload.com/?d=FLLNMOA8

    This was posted earlier as an alternative. Its Kirans files, just connected and on megaupload instead of rapidshare.

  • spink said:

    Hi, I am currently using a 3gs 3.1.2 baseband 5.11.07 and have not jailbroken before. I downloaded the "iPhone 3GS iOS 4 Custom Firmware Activated for Other Carriers" files and managed to join them up without any problem. However, when I tried to restore it using this file I got the error message:

    "The iPhone "iPhone" could not be restored. An unknown error occurred (1604)."

    Will appreciate greatly your help, thanks..

  • kiran said:

    Old bootrom or new? Try DFU mode…

  • spink said:

    It should be the new bootrom as I got it in Dec 09 and this is the firmware and baseband when I got it. The phone is stuck in the recovery mode now? How should I proceed from here? Thanks..

  • kiran said:

    Instructions clearly say it wont work the new bootrom … Download umbrella app (google umbrella iphone) to kick it out of recovery mode…

  • spink said:

    Sorry for that. I didn't check the bootrom actually, just assumed it's the new one. Downloaded umbrella but couldn't get it out of recovery phone as it kept saying I'm not running as a administrator although I did. Any solution for this or alternatives? thanks…

  • kiran said:

    You don’t have iPhone contract, do you? I am afraid we are in a tough situation given that this custom firmware won’t work with new bootrom.

    Do you know anyone who has an iPhone contract? All we need is activation at iOS 4.0…

  • spink said:

    Yes, I do not have iphone contract but my iphone is not from US. It is fully unlocked and can be activated by any SIM card.

    Will it work if I download and install the custom 3.1.2 firmware from your site then restore the backup that I have created in iTunes?

    thanks…

  • kkiran said:

    Great, if it is fully unlocked, then you can actually activate your iPhone from iTunes 9.2 directly. All you have to do is, launch iTunes and let it do its thing. Atleast, you can use the iPhone now…

    Let us hold off on the jailbreak till new bootrom iPhones are supported.

  • Vin said:

    This chart might help: http://www.jailbreakmatrix.com/

  • Alicia said:

    The chart helps me alot! so far so good.
    I have found my bootrom, now I need to find my basband, where would that be?

  • Jer said:

    You will need to upgrade to newest version of iTunes to perform the software upgarde…I had all the errors (1) (2) (1600's)….

  • Marcin Szatkowski said:

    a quick question. would it be possible to update the baseband only? i am using custom ispw from this site since 3.0 on my 3gs. So I still use a 4.26.08 baseband (since these ispw do not update them). Now ultrasnow unlocks 5.11.07 and 5.13.08 so I thought I could update the baseband. any hints?

  • kkiran said:

    Frankly speaking, I did not find any flaws in 4.26.08 baseband at all. ultrasn0w should unlock 4.26.08 baseband too. The only other way to update baseband on 3GS iPhones is to create a new custom firmware which updates to the new baseband which I don't want to spend too much time on since this works…

  • Marcin Szatkowski said:

    Thanks. I am thinking about creating such. If I do, I will post rapidshare links.

  • kiran said:

    Great! Thanks …

  • Marcin Szatkowski said:

    I won't manage to do it 🙁 I've tried, but failed. I'm too rookie for this. Would you consider a new bootrom when creating a new custom ispw of a new iOS in the future? It would be great…

  • kkiran said:

    New bootrom cannot be jailbroken right now 🙁 We have to wait…

  • Marcin Szatkowski said:

    Sorry. I've ment baseband :). But you've already done this 🙂 You're the man :). Cheers

  • kiran said:

    🙂

  • ian said:

    Hi all,
    i have iphone 3gs, baseband 05.12.01. firmware 3.1.2 already jailbroken with blackra1n,with new bootrom.
    as its already jailbroken,can i download the custom firmware and install or will i get the error as i have the new bootrom?
    dont want to try incase i brick my phone.

  • kkiran said:

    Please wait till the new bootrom is jailbreakable.

  • Yves said:

    Hi all,
    i have LOCKED/UNACTIVATED iphone 3gs, baseband 05.12.01. firmware 3.1.3 which never has been jailbroken and untill now not usable at all.

    Is there a solution for this?

    Thx
    Yves

  • kkiran said:

    If it is unusable, you may try but if it is the new bootrom, then no point trying. You can actually use spirit jailbreak after using 3.1.3 custom firmware…

  • zalim said:

    i download custome avctive 4.0 for 3gs i update wid that and every thing was fine but i cant run multitasking and cant use many cidya pkgs but i have shsh blobs saved so i turn back with my 3.1.2 wich is way better then 4.0 well my quiston is why multitasking wasnt working ?

  • kkiran said:

    Seriously? The custom firmware does nothing with multitasking, it should just work. Are you sure you can't see the apps when you double tap the home button?

  • zalim said:

    yes i did all but folder and multitasking is poof no more multitasking

  • zalim said:

    i forgot to tell you when i restore my phone from backup after that every thing change i donno what happend at all well i restore back with 3.1.2 and im ok now but i wont do this untill some other jailbreak dont come up i donno i have problem with that or many others have problem but i didnt like it at all make my phone so slow and every thing is like moving in slow motion when jailbreak method come up i will just update with itune and then i will unlock using ultrasn0w wich is best way to do that with custom pawnge sign come up as boot logo instead of apple wich dont bother me at all but still

  • Joseph said:

    I've got a 3GS, 3.1.3 old bootrom baseband 5.12.01 unlocked via ultrasn0w. i'd like to confirm this method of hacktivating 4.0 will work on my current setup

    btw i've been using ilikemyiphone hacktivation on my old 2g, props 🙂

  • kkiran said:

    Yes sir, you are right on track.. Go for it!

  • Joseph said:

    also, what difference does spirit jailbreak make? i received this iphone already jailbroken, but i'm not sure which method of jailbreaking was used. will this affect the 4.0 custom firmware install?

  • kiran said:

    Spirit jailbreak is primarily used for untethered jailbreaking which new bootrom 3gs iPhones require…This custom firmware won’t work for new bootroms…

  • Joseph said:

    i get an error 1604 during install after freezing on "preparing iphone for restore" progress bar.. please advise?

  • kkiran said:

    You may try DFU mode or Restore mode if you tried the other one. If it is new bootrom, we cannot use this firmware as mentioned earlier..

  • Joseph said:

    i tried both methods, DFU and restore mode both with 1600 error.. i tried detecting bootrom by dfu mode and looking in device manager but couldn't find "device instance path," my serial number is xx925xx.. but my model is MC138LL, maybe i am on new bootrom. i'll just wait for a more recent jailbreak, thanks for your help kiran.

  • kkiran said:

    We have to wait till new bootrom is jailbroken..

  • Joseph said:

    actually i just checked my bootrom with another method, i have iboot-359.3.. i dont have 3.1.x shsh blobs stored on saurik's server though, could this be a problem? i have 4.0 blobs stored.

  • kkiran said:

    4.0 blobs are only for 4.0 firmware. This firmware won't work on new bootrom.. Try Umbrella app and try kicking it out of recovery mode.

  • Joseph said:

    well i jailbroke it only a couple weeks ago after saurik stopped hosting 3.1.3 blobs, so all i've got is 4.0 shsh.

    thanks for all your help. since i read you have been having hosting problems, i have the unofficial carrier ispw uploaded here http://www.megaupload.com/?d=FLLNMOA8

  • Kiran said:

    Thanks a lot.. Spiritjb should take care of jailbreak for new bootrom..

  • rahul said:

    itunes keeps showin error 1600 in dfu mode n 1604 otherwise…….version 9.2

  • kkiran said:

    Are you sure it is the old bootrom your 3GS is on?

  • Carlos said:

    Hi, I used the custom firmware io4 on my 3gs baseband 4.26.08 and all is working good. The only concern I have is with the battery life because it is draining really fast.
    I find in google some post about that, and they recomend to upgrade to a newer baseband (hackable and unlockable) to resolve this problem.

    Do you know if is there a way to upgrade the baseband or if there is a custom firmware not activated with a newer baseband than the 4.26.08.

    Thanks for your help

  • kkiran said:

    Hey, only the baseband for 3GS cannot be upgraded as of now. All that a Custom firmware does is install firmware without touching the baseband. But like you said, if it is a baseband bug that is causing the battery issue, I can create a new custom firmware with newer baseband. I haven't seen any other complaints yet, hundreds of downloads already. A new iOS 4.01 may be released soon too, may be we should try that instead..

  • Carlos said:

    Thanks for your help as always Kiran.

    And to all of the people been help by Kiran….. Please donate!

  • Carlos said:

    Please send me your info by email in order to send you my donation via paypal.

  • kiran said:

    Thank you! Please click donate button directly … it is more streamlined..

    Do you want download links?

  • Carlos said:

    i dit it and it links to the paypal site, but I dont know where to send you my donation.

    As you know, I already use your custom firmware, I will wait to get either the new ones with a newer baseband (that can be unlocked), or wait to the 4.01 to come.
    Thanks

  • zalim said:

    now we cant download custome files rapidshare say more then 200mb files need premium service kiran what happend?

  • zalim said:

    thiw what happend when i try to download activated frimware 4.0 first part rapidshare is giving me this error
    You want to download the following file: http://rapidshare.com/files/402168536/iPhone2_1_4… | 220200 KB

    This file is larger than 200 Megabyte. To download this file, you either need a Premium Account, or the owner of this file may carry the downloading cost by making use of "TrafficShare".

  • kkiran said:

    Guess what, I paid for the most available TrafficShare for the day and we have exhausted the full bandwidth of 120GB. Zero donations btw. I don't know what to do at this time. Let me check when new billing cycle starts for me, in few hours guess.

  • zalim said:

    oops sorry to hear that

  • Kiran said:

    I thought you downloaded those files already…

  • zalim said:

    i did yes but that at home and now im at job and i have no phone i cant do any thing 🙁 i wanna use my job pc to download this file and restore wid it every thing is at home :(now i will go at midnight

  • kiran said:

    The links should be up..

  • Tiberiu Costin said:

    Please upload to mediafire or another site.

  • kkiran said:

    Go ahead and download directly, purchased some more traffic…

  • freeheel said:

    hello kiran

    i downloaded 3.1 custom firmware from you way back when and it worked perfectly. i am ready to download 4.0 and this time, for sure, donate to the cause and your efforts. however…as reading the most recent posts…i may wait for 4.0.1 as you have mentioned. i am also on 4.26.08 and wouldn't mind staying on the baseband as all has been running perfect. if you think there are no other known battery drains with 4.0 on 4.26.08 then i'd be willing to download and donate. any suggestions?

  • Kiran said:

    Hey! I am churning up a new firmware with updated baseband since it is unlockable and we always want new stuff! Like Carlos mentioned, why take a chance with battery drains. Donations are appreciated since I am uploading them to a new direct download rapidshare account and the main one is capped for downloads today. Let me know if you would want activated or notactivated firmware..

  • freeheel said:

    Thanks for the quick reply! I would need an activated custom firmware. I'm up on a jb/unlocked tmobile iPhone. Just to confirm…installing the new custom firmware with newer baseband will still keep my iPhone jb'd and I'd just need to unlock through Cydia? Thanks.

  • Kiran said:

    Np! Yep, it will still jailbreak the iPhone and since all basebands are unlocked so far, ultrasn0w via cydia will get you T-Mo love! Almost done uploading activated firmware…

  • freeheel said:

    Thanks Kiran for putting together the custom firmware with updated baseband. I'm running around this weekend, but plan to donate by Monday to access the new firmware. Cheers

  • kkiran said:

    Thanks! It is ready for downloading directly… Got some more traffic..

  • Tiberiu Costin said:

    Please upload the custom firmware to another site like mediafire. Rapidshare is crap and we cannot download. Thanks!

  • kkiran said:

    Traffic enabled, download directly from Rapidshare ..

  • Tiberiu Costin said:

    Thank you very much. 3 MB download from Rapidshare. That's a first. I will upload to a mirror site and share the link as soon as possible.

  • JoeBlack said:

    I have iphone 3GS 16GB with MB model new baseband with iOS4. I tried to restore using this custom firmware, doesn't work. The firmware does not verify and i guess thats the reason why it will not restore..

  • Thanks said:

    Could you upload the custom firmware OS4 for iphone 3G?

    Thanks,

  • kkiran said:

    Rather spending all the time downloading custom firmware, I would recommend redsn0w, it is available for Windows and Mac computers and it just works! Look for the download link in Downloads section (unlocking tools). I will post a writeup tonight. Cheers!

  • Naveed said:

    Please update the firmware, as jailbreak tool is available for new bootrom for all iDevices ???????????????????

  • kkiran said:

    I am not aware of a jailbreak tool that can take care of new bootrom for iOS 4 yet. IF and when released, it will be posted here. Thanks…

  • Kiran said:

    New bootrom is not officially supported as yet. They will be up once released.

  • Naveed said:

    Thanks for your reply.

  • Naveed said:

    Kiran, I have iPhone 3GS with old bootrom with BaseBand 5.12. Can I restore the above custom firmware 4.0 and unlock??

  • kkiran said:

    Was it previously jailbroken? If yes and you did not use spirit jb, then go ahead and restore custom iOS 4..

  • Naveed said:

    I am using spirit on FW 3.1.3, that means I can't.
    Many thanks for replying. will wait for update..

  • kkiran said:

    No problem! The new update is on the horizon…Stay tuned!

  • naveed said:

    Kiran, my phone was getting stuck again and again (too many apps installed), so I thought to restore back to 3.1.3 official firmware, i had 1600 error and now my 3Gs is stuck with DFU and restore mode. I managed to get out of restore modev(via RecBoot Version 1.0.1), but again apple logo and nothing. before that I tried to save SHSH on cydia, it says i have shsh for ver 4.0 and not 3.1.3, i dont know why ? Any help to boot my 3Gs is highly appreciated.

  • Sam said:

    The links above for the old bootrom of 3gs… do they preserve the baseband or upgrade the same to new version? sorry i couldnt figure it out from your posts/comments…

  • kkiran said:

    They are for the old bootrom. They preserve the baseband.

    I got requests for not preserving the baseband since some wanted the latest baseband and it is still unlockable and supposedly does better at power management (battery). I will update the post with links for firmware that updates the baseband to 5.13 today…

  • Sam said:

    Thx

  • kkiran said:

    Thanks for the reminder. They will be up in less than 30 minutes from now. I already uploaded them, just have to edit the post. Was holding off with traffic concerns at rapidshare but yeah, they will be up now…

  • kc_desi said:

    If it was upgraded to 4.0 using the custom restore files from Pwnage tool, then should be a normal restore in recovery mode. If it was upgraded to 4.0 direct from Apple, then its a whole another story.

    These are my 2 cents, but do wait till the expert (Kiran) agrees/dis-agrees with the same.

  • Kiran said:

    @Chris : Yes, it is as simple as restoring to the custom firmware in recovery mode. It should take care of the rest… (since you stated that you have old bootrom)

    @ kc : I am by no means an expert! I try to pass knowledge after thoroughly checking whatever I post on my devices first.

    Cheers!

  • Kiran said:

    I love to hear that! Enjoy 🙂

  • Alicia said:

    How do you find the baseband?

  • kkiran said:

    We can find it from settings-> general-> about but you don't have to worry about the baseband since it is unlockable. Try restoring the custom firmware with iTunes 9.2 in Restore mode..

  • Ash said:

    Has anyone tried this with an iphone 3gs on 4.0 that HASN'T been jailbroken before? I really don't know how I'm going to get my phone unlocked if I can't jailbreak it. I'm on an old bootrom and firmware 05.13.04. Will there be a jailbreak for it soon? 🙁

  • Kiran said:

    I tried it and nope it failed on a virgin, non-jailbroken iPhone 3gs… The best part being – you have nothing to lose, you may give it a shot (backup first just in case)….

    Yes, jailbreak is in the works…

  • Rajesh said:

    This will not work for 3GS with new bootrom. You will get unknown error occurred(1600).

    Please release a iPhone 3GS Custom Firmware iOS 4.0 [Jailbreak, Unlock, Activate] for NEW BOOTROM

    Thanks!

  • Pinakin said:

    Hi all,
    i got an Iphone 3gs from Uk..which already had 4.0 installed and with new bootrom..
    it was not taking my car.. i think it was locked to some UK network and would not detect my Airtel service..

    so i downloaded the latest firmware from here …(both jailbroken and stock) ..but it hink these work on old bootrom.. so i tried restoring it using file downloaded from this site (shift+restore in itunes 9.2) and it gave me an error and my iphone was stuck in recovery mode..it just wont start normally..so i plugged it in ..let itunes detect it. Itunes gave me an error "iphone detected in recovery mode, check for update to restore".. i clicked "check"..it said theer is an update 4.0.1 available..click restore to download update and restore your iphone.. so i clicked restore ..itunes downloaded the update… installed it.. rebooted the phone..activated the phone (with my simcard inside)..and VIOLA…now my iphone is unloacked and working with my sim card..
    i dont know exactly what happened..but now i have 3gs with ios 4.0.1 and working with my simcard..only downside is there is no Cydia

  • kiran said:

    Wow, really? Could you send me a screenshot if possible?

    It should either be a factory unlocked device or I don’t know what! Congrats!

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