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crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 Spencer Day
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| [title] Unfasten the lower case | |
| - | [* black] Before starting this procedure, disable your Mac's ***Auto Boot*** feature. Auto Boot powers on your Mac when you open the lid, and may be accidentally triggered during disassembly. [guide|110034|Use this guide|new_window=true] to disable Auto Boot. |
| - | [* icon_note] If your MacBook is running Big Sur v11.1 or later, disabling Auto Boot may not work. Proceed normally, but make sure to disconnect the battery as soon as you're inside. |
| - | [* icon_caution] Before you start, completely power off and unplug your MacBook Air. Close the display and flip the laptop upside-down. |
| [* black] Use a P5 Pentalobe driver to remove the four 6.4 mm screws securing the lower case: | |
| [* red] Two screws with ***fewer threads*** near the hinges | |
| [* orange] Two screws with ***more threads*** near the front of the MacBook |