Magnetometer. The last sensor of the trifecta is the magnetometer. A magnetometer is essentially a compass, it can tell you which direction is north. This sensor is used to detect which direction the device is moving in relation to the ground. However, a magnetometer needs rotational information to calculate which direction the phone is facing. The proximity sensor detects when a user is holding the phone near their face during a call and turns off the display to prevent keypad presses and battery consumption from the display. The proximity/light sensor is located to the right of the earpiece. From a Home screen, tap. With an Unshielded Sensor, magnetic flux is spread widely in front of the Sensor and the sides of the Sensor coil are not covered with metal. This model is easily affected by surrounding metal objects (magnetic objects), so care must be taken in selecting the mounting location. And I am having a problem on getting a specific value of the proximity sensor in Swift. While TYPE_PROXIMITY in Android returns an int type value of distance from object in cm unit, CLProximity of Swift only returns enum values telling whether the distance is far or near. Reboot your device. A temporary software glitch can be easily solved by rebooting the device. The steps to reboot your iPhone X are: Press and hold power button. Slide the screen to power off. Wait for 30seconds till the device power goes off. Press and the power button to power it on back. I had the proximity sesnor issue too, I found that by removing the screen protector that I had on the problem would go away, obviously I didn't want to be walking around with an iPhone with no screen protector on it so I just got an old one that I had lying around and just cut the top of it off so that there is no screen protector covering the whole speaker section so now the actual LCD screen (4)Proximity Sensors provide high-speed response, compared with switches that require physical contact. For information on high-speed response, refer to Explanation of Terms on page 3. (5)Proximity Sensors can be used in a wide temperature range. Proximity Sensors can be used in temperatures ranging from −40 to 200°C. Turn on Magnifier, tap , then tap . Position iPhone so the rear camera can detect doors around you. If you don’t hear the sound or speech feedback, make sure Silent mode is turned off. See Adjust the volume on iPhone. When you’re finished, tap Done to return to the Magnifier screen. Identification. You can identify the iPhone 11 Pro by finding one of the model numbers either on the inner edge of the SIM card tray or within the phone's Settings app: A2160. A2215. A2217. You can find the model number through the phone's UI by going to the Settings app and navigating to General > About. The tweak allows you to quickly enable or disable the proximity sensor using an activator gesture. This tweak makes use of the Activator package from Ryan Petrich to specify a custom gesture to invoke the functionality. You can set gesture from within the Activator preferences panel in the app’s Settings. The tweak can be used, for instance H5Dkb.