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Thread: T87 Cant Full flash change OS

  1. #1
    Lifetime Member
    Join Date
    Mar 2007

    Default T87 Cant Full flash change OS

    Going from GM update from 24280476 to 24283067. I am trying to go back to an old OS to check a tune and it wont let me. It gives me an OS incapability error.\



    PS. Also when I am not plugged into my EFI cable, it is now telling me I am in "demo mode." I have to reenter a code I know. If I can find my card. LOL It says "I'm not "authorised" to make changes. Changes will be discarded." Authorized is spelled wrong FYI.
    2007.5 RCLB 4x4 WT LMM 8594OS

  2. #2
    Forum tyhee Site Admin GMPX's Avatar
    Join Date
    Apr 2003


    Hi Adam,

    The OS's should be compatible but we will need to make a change to the software to allow yours to flash, that will be in the next update.
    As far as the spelling goes, that would be the difference between British English and American English. EFILive is not based in the USA so we use British English, therefore 'authorised' is 'spelt' correctly.


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