How to Overclock

Discussion in 'iOS Jailbreak & Cydia' started by dweng95, Jan 31, 2010.

  1. dweng95

    dweng95 Member

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    I think this is how you overclock an idevice
    i did it and the loading times was faster significantly and sysinfo said the speed was higher

    Ok they said it's so hard to find out how it's impossible (and I'm not sure that this is overclocking but it makes it faster!!)!!!
    If your worried about overclocking them look apple makes them to last 10-15 years!
    And overclocking WILL make them run out faster but that means down to 5-10 years! And if you still have the same device in 5 years why are u on a jailbreaking iPod site?

    Step one:
    Connect to your iPhone via SSH

    Step Two:
    Navigate to this directory on your iPhone:
    /System/Library/SystemConfiguration/PowerManagement.bundle
    and copy this file to your desktop or a folder of your choosing.

    Note: Save an extra copy somewhere else on your computer just in case things go sour.

    Step Three:
    Open the file you just downloaded on your computer using notepad or a text editing program. You will see what looks like alien symbols and wierd text characters. There is only one series of numbers that you will be editing in this text document. by default look for "457" without the quotes. I set it to 533 and have not had any problems. You can test these numbers as these reflect the mhz clock of your iPhone.

    NOTE: Do not add any spaces or characters other than the clock speed of your choosing.

    Step Four:
    Save the document under the exact same name as you opened it. Its just easier to hit "Save" without modifying the name of the file.

    Step Five
    If using WinSCP, just drag and drop the file in the exact directory that you copied thus overwritting the original. If you followed my recommendation to save an extra of the original file then you are covering your ass at this point.

    Step Six
    Disconnect from SSH and restart your phone by holding the power/sleep button till the slider shows to turn off your device. turn it back on and enjoy your iPhones new life and speed. Just note that the battery will drain faster as more Mhz require more power.

    Tips and Tricks

    - If you want to change or revert back the speed just change the numbers in the same fashion under the same file.

    - Keep your iPhone charged when possible and turn off any unused services (Location Services, Wifi, 3G)

    - It is possible to further underclock your phone for better battery life at the price of unknown performance. Further testing is still underway.

    Here are the specs if anyone wants:

    iPod Touch's-
    1st generation: ARM11 620 MHz (underclocked to 400 MHz, then 412 MHz)
    2nd generation: ARM11 620 MHz (underclocked to 533 MHz), with internal ARM7 core for Jazelle acceleration
    3rd generation: ARM Cortex-A8 833 MHz (underclocked to 600 MHz)

    iPhone's-
    Original & 3G: Samsung 32-bit RISC ARM 1176JZ(F)-S v1.0 620 MHz underclocked to 412 MHz PowerVR MBX Lite 3D GPU
    3GS: Samsung S5PC100 ARM Cortex-A8 833 MHz underclocked to 600 MHz PowerVR SGX GPU
  2. jhloa2

    jhloa2 Member

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    if this works that would be sick!
  3. dunuck

    dunuck Active Member

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    Device:
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    does this works 100% on the ipod touch 2nd gen?

    I know about overclocking the iphone 3g, but people said that it didnt work on the ipod touch 2g, is that true?

    will it be safe to overclock my ipod touch 2nd gen to 620mhz

    Please Register or Log in to view images

    that would be neat
  4. jmwerkus

    jmwerkus Active Member

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    can i overclock my 3gs
  5. dunuck

    dunuck Active Member

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    Device:
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    Is the "457" the same for all devices, is it the same for the 2nd gen ipod touch

    would it be safe to oc to 620mhz ?
    ------------------double post merged------------------
    WHO ARE YOU? and where did you get this info from? does this work for all devices
    are you full of BS?
  6. deadlyvirus

    deadlyvirus New Member

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    I went on the internet, and I found this
  7. theiThemer

    theiThemer Active Member

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    Device:
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    Doing this on my iPod touch 2G right now.
    ... Lets see what happens.

    EDIT:
    I found PowerManagement.Bundle, but dont know which file to edit.
    Theres only 2 PLISTS which have no mention of 457, and only one file with no extension that only has one word in it.

    Theres an English.Iproj, which only has a Localizable Strings file which appears to be leftover from a MacBook.

    ... So without further a due, id say this guy is lieing
  8. deadlyvirus

    deadlyvirus New Member

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    Device:
    4G iPod touch
    com.apple.SystemPowerProfileDefaults.plist

    Look in there. The iPhone is slower than the 2g iPod, so there won't be a 457 as the iPod is faster.
  9. jhloa2

    jhloa2 Member

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    dont do this i'm trying to restore right now
  10. deadlyvirus

    deadlyvirus New Member

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    didn't go so well?

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