If the MTB-CUT M288 triggers an alarm during the installation process—especially when installing on iPhone models—please don't worry.
This happens because the silicone pad, which ensures the screen protector is pressed firmly against the phone during vacuum installation, may accidentally press the side power button of the phone. This is a normal and does not indicate a machine malfunction.
Recommendation:
Before placing the phone into the installation chamber of the MTB-CUT M288, turn off the phone.