Run a test by tapping the icon for the feature you want to run. Select Hardware test to run diagnostics on the display, backlight, touch screen, multi-touch capability, flash, front and rear camera, and the proximity sensor. Choose Troubleshoot to test the touch-screen display, battery, audio, camera, connectivity, and more. Open the app and tap Device diagnosis & hardware performance tests in the Troubleshooting section. Motorola phones can use the Device Help app, which comes preinstalled on some devices. If the test is successful, a checkmark appears on its icon. Alternatively, tap the Test all button to perform all the tests one after the other. Tap the individual icons to run diagnostic tests on the battery, SIM card, sensors, touch screen, flashlight, camera, microphone, speaker, Bluetooth, Wi-Fi, and more. Open the app and tap the Diagnostic button on the home screen. It provides sales and technical support, and a built-in diagnostics tool as well. Samsung offers its own free app known as Samsung Members, which can be downloaded from Google Play. Tap the back button from the main menu to return to the Phone app. You can also tap Touch and then move your finger around the screen to test the touch screen and tap Low Frequency to test low-frequency sounds.Īfter your test is done, touch the screen or tap the back button to return to the main screen. Tap Receiver to check the audio, Vibration to try the vibrating feature, and Sensor to test the accelerometer and other sensors. Tap Red, Green, or Blue to test those pixel colors. A diagnostic screen pops up with buttons for a variety of tests. Open the Phone app, tap the Keypad, and then type * #0*#0*#. When you finish using the Apple Hardware Test, quit the test by clicking either the Restart or Shut Down button.Samsung’s Galaxy smartphones have a built-in diagnostics tool that's accessible from the keypad.To do so, place a checkmark in the Perform Extended Testing (takes considerably more time) box, and then click the Test button. If no trouble was found, you may still want to run the extended test, which is better at finding memory and graphics problems.If you see an error in the test results, take a look at the error code section below for a list of common error codes and what they mean. The Test Results area of the window displays either a "No trouble found" message or a list of problems.
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