How to Calibrate a G-Sensor on an Android Smartphone

To correct problems with the sensor, calibrate your device's accelerometer, commonly known as the G-Sensor or magnetometer, using Android Settings. While many Android devices donโ€™t provide a native calibration utility, you can test and calibrate your accelerometer on Android 4.4 KitKat using free third-party apps, such as Victor Dmitrienko's Accelerometer Sensor or Antoine Vianey's Bubble Level. You may need to wave your device in the pattern of a figure-eight before you calibrate it on a flat surface, as this helps calibrate all three axes of the sensor.

phone on white background. Isolated 3D image
The G-Sensor detects the position of your device on three axes.
credit: Sergey Ilin/iStock/Getty Images

Android Settings

Step

Open "Settings." For example, select the "Settings" gear icon at the top right of your notifications drawer.

Step

Select "Display & Gestures" or "Motions and Gestures." This setting menu name varies depending on the manufacturer and version of your Android device.

Step

Select the option relating to your G-Sensor, such as "G-Sensor" or "G-Sensor Calibration."

Step

Place your device on its back on a flat surface and then select "Calibrate." Keep your phone steady during calibration, during which the green circles move. The process is complete when the circles stop moving.

Accelerometer Sensor

Step

Download and install "Accelerometer Sensor" from the Play Store (link in Resources).

Step

Open "Accelerometer Sensor" and then lay your device on a flat surface on its back. If you receive the "No Sensor" message, then your device may not have an accelerometer.

Step

Hold your device in your hand, wave it in the air in the pattern of a figure-eight a few times and then set the device back down on a flat surface. Accelerometer Sensor automatically re-adjusts the range of your accelerometer and can effectively calibrate your G-Sensor.

Bubble Level

Step

Download and install the "Bubble Level" app (link in Resources).

Step

Open "Bubble Level," select the "Menu" button resembling three dots, and then select "Calibrate" to display the Calibrate Your Phone pop-up.

Step

Set your device down on a flat surface on its back and select "Calibrate." Your device automatically calibrates and then displays zeros in the two G-Sensor value boxes at the bottom of the screen.