This work only for MacBook/iMac should be in a locked state (i.e., password-protected).
Steps:
1. Access Recovery Mode:
- For MacBook T2: Boot the device in Recovery Mode by holding CMD + R.
- For MacBook M1, M2, M3: Hold the Power Button and choose Recovery Mode.
2. Execute Key Combination:
- Once the Mac in recovery mode hold all 5 keys: Control + Option + Command + Shift + Dot
- Wait for a few seconds until a red screen appears.
3. Dump Diagnostic File:
- A Finder window will pop up.
- Insert a USB drive and save the diagnostic file by choosing Save to USB.
4. Extract Information:
- Open tool > Choose File .tgz from USB and wait tool decrypt owner info.
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