Does jailbreaking an iPhone 4 slow it down at all?

Discussion in 'Jailbreaks and iOS Hacks' started by OrangeDog, Aug 18, 2010.

  1. macrumors 6502

    Joined:
    Oct 20, 2008
    #1
    Does jailbreaking an iPhone 4 slow it down at all?

    Any lag like a jailbroken 3G?
     
  2. macrumors G4

    dhlizard

    Joined:
    Mar 16, 2009
    Location:
    The Jailbreak Community
    #2
    An iPhone 4 has plenty of ram and processor speed to handle the jailbreak just fine. In fact. a 3GS handles jailbroken iOS 4 just fine.
     
  3. macrumors G5

    jav6454

    Joined:
    Nov 14, 2007
    Location:
    1 Geostationary Tower Plaza
    #3
    No it won't. iPhone 4 has reasonable resources to handle it.
     
  4. macrumors 68000

    ideal.dreams

    Joined:
    Jul 19, 2010
    Location:
    OH
    #4
    I jailbroke my iPhone 4 the day it became available, and haven't noticed any change in battery, performance, etc.
     
  5. celticpride678

    Joined:
    Feb 15, 2009
    Location:
    Boston, MA
    #5
    It shouldn't change anything.
     
  6. macrumors 6502a

    FamiliaPhoto

    Joined:
    Jul 24, 2009
    Location:
    Chicago, IL
    #6
    Mine performs wonderfully.
     
  7. macrumors 6502

    Joined:
    May 28, 2010
    #7
    The act of jailbreaking in itself doesnt slow it down, its when you're running a theme on winterboard, video wallpaper, backgrounder, and multiple other mods going on that your phone COULD experience slowdown.

    I say COULD bc the i4 with its powerful processor and 512mb of ram is able to handle much more than a 3G or 3GS.

    i have noticed zero to marinal slowdown on my i4, but mileage may vary based on a persons setup.

    I had a 3G before my i4 and unjailbroke bc of the weak specs and me backgrounding, theming it etc
     
  8. macrumors Nehalem

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #8
    Exactly.
    The i4 has some very good hardware that can handle the JB tasks without even breaking a sweat.
     
  9. macrumors 6502a

    Joined:
    Dec 15, 2009
    #9
    99% of time, don't notice any difference. Some instances I do, like photo album doesn't scroll smoothly anymore and very slight faster battery drain. I'll take JB over the minor issues any day of week.
     
  10. macrumors 6502

    Joined:
    Jan 3, 2010
    #10
    just jb does not slow down,but if you start installing lots of applications without doing research then it will surely have impact on the performance...
     
  11. macrumors 68020

    IrishVixen

    Joined:
    Jun 20, 2010
    #11
    No issues here on JB'd iPhone or iPad.
     
  12. macrumors 68000

    HiFiGuy528

    Joined:
    Jul 24, 2008
    #12
    I keep my jb apps to two (tetherMe & 3G unrestrictor) so it's pretty stable. The more you install & uninstall, the more chance of crashes and battery drain. Just my 2cents.
     
  13. macrumors member

    Joined:
    Jun 18, 2011
    #13
    Yes it will slow ur iphone 4 down, and it is very noticeable when you are playing games especially racing games. the game will lag.
    And all those people who say that JB wont slow things down are talking ********.
    No matter how much things you install from cydia you will LAG for sure.
     
  14. macrumors 68030

    srf4real

    Joined:
    Jul 25, 2006
    Location:
    paradise beach FL
    #14
    Droid user?:confused:

    Mine is unaffected. I did notice quicker battery drain but after lowering brightness just a tad to compensate (I've never taken the iPhone 4 off of max. brightness) that's good again too. Of course I'm not playing Black Ops either, that's what PS3 is for.;)
     
  15. macrumors 68040

    Joined:
    Oct 27, 2009
    #15
    Jailbreaking just adds the ability to add functions & non app store apps to the iPhone. Jailbreaking itself doesn't slow down the iPhone at all, it depends what you add to your iPhone after you jailbreak.

    I myself have a ton of jailbroken apps & functions and it hasn't slowed my iP4 down at all, same when I had the 3GS.

    Only problems you might encounter are compatibility crashes that will put you in safe mode after you install something. It's rare but it does happen. Only happened to me after I installed a NES game rom pack.

    Also, battery life hasn't been a issue for me at all.
     
  16. gngan, Jul 15, 2011
    Last edited: Jul 15, 2011

    macrumors 68000

    gngan

    Joined:
    Jan 1, 2009
    Location:
    MacWorld
    #16
    If it slows down then it's very likely to be users error.
     
  17. macrumors member

    Joined:
    Jun 18, 2011
    #17
    I got all 8 replacements and they all lag after being jailbroken
     
  18. macrumors 68000

    gngan

    Joined:
    Jan 1, 2009
    Location:
    MacWorld
    #18
    What did you install?
     
  19. macrumors 68040

    Joined:
    Oct 27, 2009
    #19
    I got 232 replacements and none of them lag after being jailbroken.
     
  20. macrumors member

    Joined:
    Jun 18, 2011
    #20
    i didnt install anything, I was checking see if jailbreak is causing the lag, so I only have cydia that was all. But still lags
     
  21. macrumors member

    Joined:
    Jun 18, 2011
    #21
    wow you sir is my hero :)
     
  22. macrumors 65816

    Randman

    Joined:
    Jul 28, 2008
    Location:
    Jacksonville, Fla
    #22
    I did the jailbreakme option on my iPhone 4 this week and have noticed a degradation in battery life as well as some lag, most noticeably opening applications for the first time.

    Not enough of either to make me go back, at least until iOS 5 is out.
     
  23. macrumors member

    Joined:
    Jun 18, 2011
    #23
    DOes yours lag with playing games like Need for speed?? and other 3D racing games?
     
  24. macrumors 68000

    murdercitydevil

    Joined:
    Feb 23, 2010
    Location:
    california
    #24
    Does giving write access to a previously read-only drive make it slower? No, but putting a bunch of crap on the drive will.
     
  25. macrumors 68000

    gngan

    Joined:
    Jan 1, 2009
    Location:
    MacWorld
    #25
    That doesn't make sense at all.
     

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