Loading Screen Messed Up After Jailbreak! (Pic Inside)

Discussion in 'Jailbreaks and iOS Hacks' started by NocturnalEVO, Aug 2, 2010.

  1. NocturnalEVO macrumors member

    Joined:
    Apr 5, 2010
    #1
    Hopefully someone can help me out, cz its buggin the crap outta me..

    I jailbroke today, and everything seems to be workin fine, except for 2 things..


    I have an iPhone 4 with 4.0.1 firmware


    1. When I restart the phone (black screen w/silver apple logo), I'm getting 2 odd lines at the top of the screen. I restored twice and when non-jail broken, they don't appear. However, everytime I jailbreak, they show up, always in the same location.

    See picture below:
    [​IMG]


    2. In Winterboard, everytime I exit the application after making a change, the phone restarts (black screen w/silver apple logo, same as above, however it has the spinning loading thing over the apple). And then goes back to the lock screen as normal.

    Normally in the past on all my iPhones, after you exit Winterboard, it usually freezes for about 5 seconds on the homescreen, and then takes you to the lockscreen. That's what I'm used to seeing, im wondering if the phone restarting is something messing up, or if its supposed to be like that now.


    Regardless, if anyone can chime in, i'd really appreciate it. Thanks a bunch!
     
  2. Kyeris macrumors 6502

    Joined:
    Jul 19, 2008
    Location:
    Somewhere in Texas
    #2
    It seems like this is what happens now during a respring.
     
  3. j3yq macrumors 6502

    j3yq

    Joined:
    Dec 16, 2007
    Location:
    Iowa
    #3
    I have the same thing on my iPad but on the right hand side.
     
  4. dukebound85 macrumors P6

    dukebound85

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    Jul 17, 2005
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    5045 feet above sea level
  5. bw1128 macrumors 6502a

    Joined:
    Jun 29, 2010
    #5
    happens to me when respring too. seems to be the norm
     
  6. barr08 macrumors 65816

    barr08

    Joined:
    Aug 9, 2006
    Location:
    Boston, MA
  7. moussekateer macrumors 6502a

    moussekateer

    Joined:
    May 12, 2009
    #7
    It'll happen to everyone who uses the new jailbreak. It's normal. Want a (quite interesting) explanation why it happens?

    Comex's jailbreak is a high level userland jailbreak. The problem with userland jailbreaks is the runtime code has to be stored somewhere, and it's more difficult here. So comex and co did something clever. They encrypted the jailbreak payload as coloured pixels and stored it in the buffered frame that displays when iOS is starting up or respringing.

    To sum it up, those coloured pixels are the jailbreak code. If you had a good enough eye you could read off the RGB values of the colours and convert them to runtime code.
     
  8. Chodite macrumors 6502a

    Chodite

    Joined:
    Sep 23, 2007
    Location:
    Baltimore, MD
    #8
    Mind blown.
     
  9. NocturnalEVO thread starter macrumors member

    Joined:
    Apr 5, 2010
    #9
    Thanks a bunch guys! Really appreciate the consolation lol

    moussekateer, thanks a bunch for explaining, much appreciated! :)
     
  10. Snowman3459 macrumors 6502a

    Joined:
    Jun 15, 2010
    #10
    Just when I think I learned a lot about technology...a genius comes up with this stuff.

    Indeed, mind blown.
     
  11. iWeldonJ macrumors member

    Joined:
    Jul 8, 2010
    #11
    Hello! of course there's going to be weird things happening here and there. You're messing with a stable product and opening up to anyone so it's going to run weird.

    I jailbroke one phone back in the day and it was doing some annoying things. the smoothness was gone and I never jailbroke again and things work great.
     
  12. Snowman3459 macrumors 6502a

    Joined:
    Jun 15, 2010
    #12
    I'm not exactly sure why you quoted me. I'm not the one who freaked out about it...
     
  13. xraytech macrumors 68020

    Joined:
    Mar 24, 2010
    #13
    HOLY COW!!!

    REALLY?!?
     
  14. Emberwild macrumors newbie

    Joined:
    Aug 7, 2010
    #14
    Was worried about this too. First time jailbreaking so thanks! :)
     
  15. LoLife macrumors regular

    Joined:
    Jun 1, 2010
    Location:
    Reno, NV
    #15
    Man the stuff that you people know and figure out is amazing :confused::D
     
  16. sidewinder macrumors 68020

    sidewinder

    Joined:
    Dec 10, 2008
    Location:
    Northern California
    #16
    Hold on a second. Let's not make this sound more amazing than it is. They did not encrypt the jailbreak payload as colored pixels. They stored the code in the file used for the reboot image. That code "corrupts" part of the image and that is what we see as colored pixels.

    S-
     
  17. ahfu25 macrumors 6502a

    Joined:
    Dec 28, 2009
    #17
    HATER!!.....JK!...LOL......Yes you are correct! :cool:
     
  18. x.leviathan macrumors newbie

    Joined:
    Aug 7, 2010
    #18
    Might I direct you out of the iPhone Hacks section? Probably more appropriate for you.
     
  19. dhlizard macrumors G4

    dhlizard

    Joined:
    Mar 16, 2009
    Location:
    The Jailbreak Community
    #19
    My thoughts exactly.

    If one has decided jailbreak wasn't for them, what is to be gained by monitoring these threads ? That said, of course everyone is entitled to browse where ever they choose.
     
  20. MajesticNJ macrumors regular

    MajesticNJ

    Joined:
    Jun 20, 2009
    Location:
    Central NJ
    #20
    +1 :)
     
  21. revirus macrumors member

    revirus

    Joined:
    Aug 2, 2010
    #21
    Where do you get this info?
     
  22. moussekateer macrumors 6502a

    moussekateer

    Joined:
    May 12, 2009
    #22
    Some programming experience and lots of previous jailbreak experience and peeking at the jailbreak code. Also this:

    But sidewinder is right, it is more correct to say the coloured pixels are a consequence of the code corrupting the image rather than the code being encoded itself. But you could still theoretically work backwards from the colour of the pixels to get the code again.

     
  23. revirus macrumors member

    revirus

    Joined:
    Aug 2, 2010

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