If your Eco Hardshell Case for MacBook Air M2 keeps falling off, the cause is nearly always a clip that never snapped in or a MacBook with different chassis dimensions. The Eco Hardshell Case for MacBook Air M2 (ST-MBAM2CL, ST-MBAM2DR) is designed specifically for the 13.6-inch MacBook Air with the M2, M3, or M4 chip, and it holds on with 6 clips on the top case and 7 clips on the bottom case.

How to get your Eco Hardshell Case for MacBook Air M2 to stay on

1. Confirm you have the right model. The Eco Hardshell Case for MacBook Air M2 fits the 13.6-inch MacBook Air with the M2, M3, or M4 chip, which all share the same chassis design.
2. Rule out the models it is not built for. It does not fit the MacBook Air M1 (2020) or earlier, which have different chassis dimensions, the 15-inch MacBook Air, any MacBook Pro, or non-Apple laptops.
3. Check your MacBook model before going further. Click the Apple menu, choose About This Mac, and look at the model name and chip.
4. Clean your MacBook before installing the case. Dust and grit along the edges keep the clips from closing fully.
5. Install the top case and press until all 6 clips snap into place. If the top case is on correctly, the logo sits at the bottom right.
6. Install the bottom case and press until all 7 clips snap into place.
7. Pay special attention to the long clip on the bottom case. If that long clip does not snap into place, the case will fall off.
8. Check that all the cutouts line up with the ports and vents. With the Eco Hardshell Case for MacBook Air M2 installed correctly, you have full access to the MagSafe port, Thunderbolt ports, and headphone jack.
9. If a corner still lifts, take the Eco Hardshell Case for MacBook Air M2 off completely, clean both the MacBook and the inside of the case, then reinstall the top and bottom pieces one at a time, pressing along every edge until each clip clicks.