System for Detecting Proper Positioning of Accessory

A system for detecting proper positioning of an accessory, including an electronic device and an to be attached accessory. The electronic device includes a first attachment component, a magnetometer, and a processor. The to be attached accessory includes a second attachment component. The second attachment component is configured to be attached to the first attachment component, so that the to be attached accessory is fixed through attachment to the electronic device in a first orientation or a second orientation. The magnetometer is further configured to be triggered by a combined magnetic field of the first attachment component and the second attachment component to output the magnetic field intensity information when the accessory is fixed through attachment to the electronic device in the first orientation or the second orientation. The processor indicates whether the accessory is fixed in position based on the magnetic field intensity information.