Easiest way to downgrade firmware on TV

Discussion in 'Apple TV and Home Theater' started by rotarypower101, Dec 8, 2009.

  1. rotarypower101 macrumors regular


    Sep 28, 2007
    Portland Oregon
    Hey guys what is the current easiest way to downgrade the firmware on the TV to a desired release?

    Is AtvCloner able to do this, anyone familiar enough with this software (thanks dynaflash BTW) to describe in detail the steps that would need to be taken to slipstreem a older firmware into the image creation process?

    The TV OS .dmg files on the iClarified page need to be relinked to there respective sources, the only file that appears to work when tested was the 2.4.0 link, which fortunately is the one i wish to use.

    Does it matter what EFI is used or recovery file is used? Hypothetically could I use a 3.0x recovery file and a 1.x EFI and then a 2.x bootable image?

    And if there is a difference in EFIs, is there an advantage between versions of the EFI and which ones are compatible with which firmware's?

    There is a little blurb about the EFI on awkwardtv Wiki but it doesnt look current.
  2. Cave Man macrumors 604

    Cave Man

    Feb 12, 2007
    Neander Valley, Germany; just outside Duesseldorf
    It's not firmware, it's just an OS.

    All you need to do is mount your ATV's hard drive to your Mac, open Disk Utility and reinitialize the Boot partition, then use DU's Restore function to restore to which ever OS version you want. Source is the .dmg of the OS you want and destination is the reinitialized Boot partition.

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