An original receipt or invoice showing the device's serial number.
On non-Apple PCs, this involves entering the BIOS menu (usually via keys like F2, F10, or Del) to manage administrative or supervisor passwords under the "Security" tab.
Some technicians choose to desolder the original EFI chip and solder on a new one pre-programmed with unlocked firmware.
An original receipt or invoice showing the device's serial number.
On non-Apple PCs, this involves entering the BIOS menu (usually via keys like F2, F10, or Del) to manage administrative or supervisor passwords under the "Security" tab.
Some technicians choose to desolder the original EFI chip and solder on a new one pre-programmed with unlocked firmware.
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