Check out [link|https://www.youtube.com/watch?v=qut-2ZQn_oc|this video]. You will need an SPI flash programmer and it is a pretty difficult and risky process but it can be done. Any future firmware updates will overwrite the boot chime though. To be honest, I don’t know if this applies to the 12” MacBooks since the SPI may be different due to how compact the board is.
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Check out [link|https://www.youtube.com/watch?v=qut-2ZQn_oc|this video]. You will need an SPI flash programmer and it is a pretty difficult and risky process but it can be done. Any future firmware updates will overwrite the boot chime though. To be honest, I don’t know if this applies to the 12” MacBooks since the SPI may be different due to how compact the board is but it probably is your best bet.
Check out [link|https://www.youtube.com/watch?v=qut-2ZQn_oc|this video]. You will need an SPI flash programmer and it is a pretty difficult and risky process but it can be done. Any future firmware updates will overwrite the boot chime though. To be honest, I don’t know if this applies to the 12” MacBooks since the SPI may be different due to how compact the board is.