If you just want to reformat the hard-drive (losing all the data) and re-install a fresh copy of MacOS you might be able to achieve this by putting it into DFU mode, depending on what machine it is.
Check out this guide: https://mrmacintosh.com/how-to-restore-bridgeos-on-a-t2-mac-how-to-put-a-mac-into-dfu-mode/
I recently did this for a 2018 MBP and can confirm it works. Might need to try the configurator steps a few times, it seems to be unreliable.
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If it was donated and has EFI it might also be enrolled in MDM, in which case you should read through this guide BEFORE installing a fresh version of MacOS:
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If it was donated and has an EFI password it might also be enrolled in MDM, in which case you should read through this guide BEFORE installing a fresh version of MacOS:
If you just want to reformat the hard-drive (losing all the data) and re-install a fresh copy of MacOS you might be able to achieve this by putting it into DFU mode, depending on what machine it is.
Check out this guide: https://mrmacintosh.com/how-to-restore-bridgeos-on-a-t2-mac-how-to-put-a-mac-into-dfu-mode/
I recently did this for a 2018 MBP and can confirm it works. Might need to try the configurator steps a few times, it seems to be unreliable.
If it was donated and has EFI it might also be enrolled in MDM, in which case you should read through this guide BEFORE installing a fresh version of MacOS:
https://gist.github.com/henrik242/65d26a7deca30bdb9828e183809690bd