Description
A3240 Aftermarket Lid Angle Sensor for 2024 MacBook Air 13″ M4
CONDITION:
- New Aftermarket
TECHNICAL SPECIFICATIONS:
- Compatible Identifying Number:
- 821-04129-02
- FM2152 01632119
ABOUT:
-
The lid angle sensor for the 2024 MacBook Air 13″ M4 (A3240) monitors the position of the MacBook’s lid, allowing the system to respond correctly when opening or closing. If your MacBook isn’t waking, sleeping, or adjusting the display properly when the lid moves, this sensor may need replacement. Installing a new sensor restores proper lid detection and system response.






