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  • iPhone 4.0 Beta FAQ


    Some popular questions are:

    1. How do I get Beta 4.0!? How much should I PAY for a Dev spot?

    You must first download 4.0 Beta via a torrent file or from the Apple Dev portal. (Search on google)
    You must have access to a dev account. (This forum has Users selling Dev spots. Also see Ebay)
    Anyone can buy a Dev account for $99.00 and they can then add 100 devices
    Prices for Dev spots seem to be a reasonable $5 to $10 donation.

    2. What is a UDID and How do I find it?

    A UDID is each iPhone's Unique Device ID (40 hex characters)
    To find it:
    You connect your iPhone to itunes

    Click on the actual serial numbers for your iPhone in iTunes summary page:
    Serial Number:*9xxxxxxxxxx (11 digits)

    When you click the serial numbers it will change to identifier:
    Identifier (UDID):*xxxxxxxxxxxxxxxxxx.... (40 digits)

    2. Is 4.0 Beta or a real release and when is it being released to the public?

    4.0 is a Beta release for developers to incorporate support for the new capabilities of 4.0 into their software

    The legitimacy of using 4.0 is kind of shady. While apple does allow developers to seed their apps to "testers" who don't have to be developers, apple agreed to allow developers too add up to 100 devices to their lists as to collect crash log info and make debugging much easier.

    Apple do not support or recommend updating at this time (If you are not a developer or tester for a developer). It will not void your warranty but will leave you with a unjailbreakable OS. If you try to update without being on a dev list you may not be able to activate your phone, but some people have managed to circumvent this.

    3. If I upgrade my 3G/3GS phone to 4.0 will it still be unlocked?

    No, and there will not be official Dev Team support for 4.0 jailbreak/unlock until the official 4.0 release.

    4. I upgraded my phone to 4.0 and can't make calls how do I install ultrasn0w or blackrain?

    Due to there not being support for Jailbreaking/Unlocking Installing ultrasn0w or blackra1n is NOT possible.

    5. How do I downgrade the baseband?

    Downgrading the Baseband is NOT Possible.
    Users must wait for the Dev Team to release an Unlock to use other GSM carriers on 4.0.

    6. How do I Unlock/Jailbreak Beta 4.0?

    You cannot Unlock/Jailbreak until the official release for 4.0 comes out and the Dev Team post their update. Beta jailbreaks may come out but will not have official support.

    7. I installed 4.0 Beta on my phone and iTunes won't activate my phone... Help!

    You must have access to a dev account. (This forum has Users selling Dev spots. Also see Ebay)
    Anyone can buy a Dev account for $99.00 and they can then add 100 devices

    8. How do I downgrade from Beta 4.0 to 3.X.X?

    From member rishidhar: I can confirm that I was able to downgrade my Iphone 3GS from 4.0 beta to 3.1.3 (since I did not save my SHSH files) by going to DFU mode and restoring the old firmware using the new ITunes 9.2, The restore fails half way when it tries to downgrade the baseband (which we know does not work). After the restore fails, it puts your phone on the recovery mode loop, to get out of this, I just ran blackra1n when it was on the recovery mode screen, this led to the screen going blank. Keep the sleep/wake and home button pressed until apple logo shows up and it should take you to your home screen eventually. I am currently on 3.1.3 with the new base-band 5.13.03. Hope this helps all the user's on modmyi.com.

    Apple is still signing 3.1.3 so you do not need any special shsh on file to get back to this firmware on a 3GS. Regular 3G users should be able to go back to 3.1.2 as needed.

    9. Does 4.0 Beta upgrade the baseband?

    Yes. There are reports of 5.13.01 out in the wild. It's possible future betas will further upgrade the baseband so no one will be working on an unlock until the final/official release.

    10. Will this Beta version expire?

    Yes. Apple traditionally releases several beta versions before the final public release. Older Beta versions will expire very soon after the replacement is released and you will be forced to upgrade to the most current beta.

    11. Why do I get an error when I install 4.0 beta on windows?

    As of today, April 9, only Mac users can install this onto their iPhone. Windows users will have to wait until Apple fixes the issue.
    This article was originally published in forum thread: iPhone 4.0 Beta FAQ started by Poseidon79 View original post
    Comments 231 Comments
    1. PhoneLine's Avatar
      PhoneLine -
      The only thing I'd still want to jailbreak for is a missed call reminder. Or do any of the new api's allow for creation of such an app to be done officially? Still can't believe how three phones and 4 OS's in a missed call reminder is not a standard feature.
    1. Quinoky's Avatar
      Quinoky -
      I really can't figure out how to get to that capabilities.plist file.. Anyone?
    1. StealthBravo's Avatar
      StealthBravo -
      ^ you have to decrypt the filesystem first
    1. godsrainbow1984's Avatar
      godsrainbow1984 -
      Yea I got the error 13 also..
    1. DanJan's Avatar
      DanJan -
      Quote Originally Posted by golfgod130 View Post
      What do you mean by pointed at Apple? What should it be and how do I change it? My iTunes crashes when trying to connect to Apple. It's a legit copy from a dev and I need to test his app.

      Thanks guys.
      Any ideas im having the same problem...and i want to be able to multitask how do i decrypt ?
    1. Quinoky's Avatar
      Quinoky -
      Okay.. Strange problems with the 3G version of OS 4.0 here. The background is NOT, I repeat, NOT user changeable. It stays black and there is no way to alter this. I can only set the background for the lockscreen through Settings -> Wallpaper. The little pop-up icon in the Photos app is disabled..
    1. Ray661's Avatar
      Ray661 -
      ^go into your settings and change background there instead of within the Photo's app. That's what i had to do
    1. Kil0111's Avatar
      Kil0111 -
      Im looking for any open 4.0 beta spots, trying to be a tester, PM me with info please
    1. Quinoky's Avatar
      Quinoky -
      Quote Originally Posted by Ray661 View Post
      ^go into your settings and change background there instead of within the Photo's app. That's what i had to do
      I did, but the only option I had was to change the lockscreen's background picture.. Or is there a different option available?
    1. qcom's Avatar
      qcom -
      Hello everyone, I would really enjoy a spot for testing iPhone OS 4.0. Sadly, I do not have the money or commitment to pay Apple $99 a year for their development program at the time, so I offer this trade:

      If anyone has spaces on their iPhone development program for iPhone OS 4.0, then please and me and I will give you the following:

      An invite to Google Wave (if you are unfamiliar with this Google service, it is basically a revolutionary communications network, which is invite only right now you can check it out here: "http://mashable.com/2009/10/02/video-google-wave-gets-explained/" and more in depth, here: "http://completewaveguide.com/")
      Please, as I would really LOVE to test out the iPhone OS 4.0!!!

      Thank you!
    1. jdyates's Avatar
      jdyates -
      Wait, does the iPod Touch even need to have the UDID registered?
    1. Garage Battle's Avatar
      Garage Battle -
      possible battery drain on 3GS with 4.0

      Could be related to backgrounding apps that are not 4.0 spec. More to come.
    1. godsrainbow1984's Avatar
      godsrainbow1984 -
      looks like I'll be waiting to use my friend's Mac to try out 4.0 beta

      *sigh* Yet another reason to get a Mac....
    1. jamesgunaca's Avatar
      jamesgunaca -
      Quote Originally Posted by StealthBravo View Post
      ^ you have to decrypt the filesystem first
      I'm not sure I understand your original post; if you decrypt the filesystem and change the value for multi-tasking it enables it for 3G? Same case for iPod Touch 2G?

      I loaded OS 4.0 on an iPod Tough 2G yesterday and am glad I didn't put it on my 3G first. Some wi-fi networks didn't work at all, of course no multi-tasking, and most importantly...no JB.
    1. aLwYn's Avatar
      aLwYn -
      just wondering and to make things clear,

      you'll need a mac to install 4.0 beta into the iphone?

      why cant windows itunes do the same job?
    1. LDeacon's Avatar
      LDeacon -
      I just installed osx on vmware and have everything up and running. But i can't do the alt and click thing to select the firmware, can someone help? this is really bugging me.
    1. darktiger's Avatar
      darktiger -
      I had to use the new version of iTunes. After that, all I did was put the phone into DFU mode, Alt click on the recover button, select the ipsw file that I put on the desktop and 4 minutes later I have 4beta on my 3gs......

    1. LDeacon's Avatar
      LDeacon -
      Does it have to be in dfu mode to enable the alt and click function then?
    1. Ray661's Avatar
      Ray661 -
      Quote Originally Posted by aLwYn View Post
      just wondering and to make things clear,

      you'll need a mac to install 4.0 beta into the iphone?

      why cant windows itunes do the same job?
      alwyn!!! hi, lol you need a mac at this moment to do it until someone else comes up with a solution, i'll message you on the bite forums when it comes up with one