Bootrom downgrade

Discussion in 'iPod touch' started by palz, May 28, 2010.

  1. palz

    palz Member

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    I was wondering, is it possible to reflash the iPhone/iPod touch bootrom? For instance, the MC model 2G iPod touch: could I reflash it to that of a 2G iPod touch, so I would be untethered, able to set custom boot logos, verbose, etc.

    I would imagine to do this you would need to dump the bootrom of the 2G ipt, then probably enter DFU mode and upload the file?
  2. JoeyB

    JoeyB Active Member

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    But doesn't the new bootrom use arm9 or w/e and the old one uses arm6 or something I thought...
  3. ibizaGTi

    ibizaGTi New Member

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    The data in the BootROM is physically burned into the chip, so no. There is no way to edit any information in the BootROM.
  4. palz

    palz Member

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    What about dumping it?
  5. b-mac 39

    b-mac 39 Well-Known Member

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    If it's possible, I'm sure it would have been done already. Besides, bootorom is physically burned into the chip. There is no physical way to downgrade a bootrom. Even physically taking the chip out and replacing it with a new one wouldn't work, because it would be incompatible with the rest of the device.
  6. palz

    palz Member

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    But reflashing it could be like reflashing a BIOS: extremely dangerous, but fun as hell if it works ;P
  7. ibizaGTi

    ibizaGTi New Member

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    NO, because as already stated, the data is PHYSICALLY BURNED into the chip. You cannot overwrite it, as the data cannot be erased.
  8. Appman

    Appman Community Development Staff Member

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    Yeah, this is a nice idea but NOT posssible.
  9. dunuck

    dunuck Active Member

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    @ palz
    let me put it this way you CANT modify hardware with software
  10. palz

    palz Member

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    Ok, ok... I get it. Its a no-go.

    But please explain how that is different from a BIOS chip.

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