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ritalo
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Last Activity: Today, 04:10 AM
Joined: 06-10-2023
Location: Rouen
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  • Hello,

    I have written the EFI with the power adapter and the battery. The MacBook does not power up during the process when both are plugged.

    But verification fails and the MacBook still does not boot.

    I will retry hoping it will work
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  • Hello

    The serial number is GJ0MW201G083

    The EMC number is 2631

    The motherboard model number is 820-3435-A
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  • ritalo
    started a topic MacBook Air 11 2014 - EFI corrupted

    MacBook Air 11 2014 - EFI corrupted

    Hello,

    I have a MacBook Air 11 inches 2014 and its EFI is corrupted.
    I use it with a card connected to the motherboard that replace the EFI.

    I know how to flash the EFI with a usb programmer but I don't know where to find a good EFI file.

    Thank you if you can help me

    I have attached the corrupted EFI...
    See more | Go to post

  • Hello,

    Thank you for your help

    I have unlocked the EFI file with MacEfiToolkit

    I have plugged the usb programmer to the motherboard and to the pc
    I have plugged the power adapter to the MacBook

    When I write the bin file to the EFI of the MacBook, it power up at least one time during the process and I have to power it down for the process to continue.

    But the writing is not good because after it, the MacBook powers up but does not boot, there is no "Dong" at startup and the screen stays black.​
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  • Can you tell me if I have selected the correct part of the file and if I have to fill it with 00 or FF?

    [ATTACH=JSON]{"data-align":"none","data-size":"large","title":"Capture d'\u00e9cran 2024-05-15 191902.png","data-attachmentid":3271565}[/ATTACH]...
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  • I cleaned all the connectors with electronic contact cleaner.

    Now it works.

    [ATTACH=JSON]{"data-align":"none","data-size":"large","title":"Capture d'\u00e9cran 2024-05-15 185943.png","data-attachmentid":3271552}[/ATTACH]

    I have found the $SVS value in the file.I cleaned all the connectors with electronic contact cleaner.

    Now it works.

    [ATTACH=JSON]{"data-align":"none","data-size":"large","title":"Capture d'\u00e9cran...
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  • Hello,

    Here is the file

    The usb programmer is GZUt EZP XPro V2 Usb Flash Writer
    The software I use are GZUT_EZP_XPro 2.1 and WinHex 20.3 SR 5

    I am not using a clip, I am attaching the chip by plugging the programmer on the connector on the motherboard....
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  • Hello,

    I read again and can open the file with MacEfiToolkit but still can't find $SVS in it

    [ATTACH=JSON]{"data-align":"none","data-size":"full","title":"2024_05_15.jpg","data-attachmentid":3271280}[/ATTACH]...
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  • Hello,

    Thank you for the link.

    The software does not recognize my file

    [ATTACH=JSON]{"alt":"Click image for larger versionName:\tmefit-114-message.jpgViews:\t0Size:\t58.4 KBID:\t3271182","data-align":"none","data-attachmentid":"3271182","data-size":"medium","title":"mefit-114-message.jpg"}[/ATTACH]...
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  • MacBook Air 13 2014 - Remove EFI password

    Hello,

    I have a MacBook Air 13 inches 2014.

    I have set a EFI password and I can't remember it : now I want to reinstall macOS and I can't because the MacBook is asking for the password.

    I know how to remove the password with a usb programmer.
    I plug the usb programmer to the motherboard and to my pc with usb, I read the EFI and I save it to a file.

    Then I have to find this value in the file : $SVS because it indicate where is the password.

    But I can't find the value.

    I have attached the file​

    Thank...
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