Wondering if your smartphone is in good health? Whether it’s a used phone you just bought or an old device you want to sell, you can put it through a series of diagnostic tests. Some Android devices have built-in diagnostics, but the App Store and Google Play Store also offer third-party test apps.
Apps like Phone Doctor Plus, Phone Diagnostics, Phone Check and Test, Zinny, and iDiagnosis can run a series of tests to check your phone’s touch screen, audio, video, camera, microphone, sensors, and other components. Here’s how they work.
Run diagnostics on Samsung phones
Samsung’s Galaxy smartphones have a built-in diagnostic tool that can be accessed through the keyboard. Open the Phone app, tap the keypad and type *#0*##0*#. A diagnostic screen appears with buttons for various tests.
Crane Red, Vegetableor Blue to test those pixel colors. Crane Recipient to check the sound, Vibrations to try out the vibration function, and Sensor to test the accelerometer and other sensors. You can also tap To touch then move your finger across the screen to test the touch screen and tap Low frequency to test low-frequency sounds.
After your test is complete, touch the screen or tap the back button to return to the main screen. Tap the back button in the main menu to return to the Phone app.
Samsung members for Samsung phones
Samsung offers its own free app, known as Samsung Members, which can be downloaded from Google Play. It offers sales and technical support, as well as a built-in diagnostic tool. Open the app and tap the Diagnostic button on the home screen.
Tap the individual icons to run diagnostic tests on the battery, SIM card, sensors, touchscreen, flashlight, camera, microphone, speaker, Bluetooth, Wi-Fi, and more. You can also tap the Test everything button to run all tests in sequence. If the test is successful, a check mark appears on the icon.
Run diagnostics on Motorola phones
Motorola phones can use the Device Help app, which is pre-installed on some devices. Open the app and tap Device diagnostics and hardware performance tests in the Troubleshooting section. To elect Resolving problems to test the touchscreen, battery, audio, camera, connectivity, and more.
Select Hardware test to run diagnostics on the display, backlight, touch screen, multi-touch, flash, front and rear camera, and proximity sensor. Run a test by tapping the icon for the function you want to run. You can tap Full Test on the Hardware screen to run all available diagnostics.
Phone Doctor Plus for iPhone and Android
Phone Doctor Plus runs on iOS and Android and starts with a list of different tests you can run, including those for memory, CPU, speaker, microphone, Wi-Fi, Bluetooth, GPS, touchscreen, camera, charging, and much more. Press Play to run all tests or swipe left to view a list of all available tests that you can run individually. The app then displays the results of any tests.
Phone Doctor Plus offers a status screen that shows your battery charge, available storage, free memory and network bandwidth. It also examines and displays the trade-in value of your phone. The Android app launches an inventory report that ensures all components of the phone are original and a battery health test to check the health of your battery.
Phone diagnostics for iPhone and Android
Phone Diagnostics is available for iPhone and Android and offers a series of tests to check your touchscreen, camera, speaker, microphone, Wi-Fi, cellular access and many other components. Just tap the button for the test you want to run or tap Get started to run all tests in sequence.
The multi-touch test asks you to place three fingers on the screen. The camera test takes photos with the front and rear cameras, while the video recording test takes a quick video with the rear camera. The motion test asks you to move your phone and the GPS test verifies your location on a map.
The app does not generate any reports or results, but any successful test will turn the button green, while a failed or interrupted test will appear red. The app may also try to direct you to a repair shop if your phone needs repair. The basic version is free with ads, but you can pay $1.99 to become ad-free.
Check and test phone for android
Phone Check and Test, designed for Android, allows you to activate a comprehensive set of diagnostics on your device. The app starts with an overview explaining how it works, how to perform the different tests and what each test entails. A monitor screen shows you current usage for memory, storage, battery, Wi-Fi, and cellular.
To run the guided tests, select the features you want to include. The app can monitor your battery, network connectivity, audio, display, touchscreen, GPS, camera, and sensors, among other things. Some tests run automatically, while others require your input.
Tap after each test OK if your phone passes or Not OK if something raises a red flag. You can also skip each test and go to the next one. A summary screen then displays the results of each test.
Zinnie for Android
Designed for Android devices, Zinny offers a series of diagnostic tests to check your battery, wireless charging, memory, flash, storage, audio, sensors, screen, camera, and network connection. You can set up the dashboard to display your favorite tests for easy access. Otherwise, tap Phone check to run each individual test or all tests in sequence.
A Phone Vitals screen shows you the stats for specific features, such as the battery, sound, screen, and camera. On an internet screen you can check and view your wifi speed and mobile connection. And a Toolbox screen offers tests to troubleshoot specific issues, such as screen burn-in and water in your speaker.
The basic version of the app is free, but saddles you with ads. For $1.49 a month, a Pro version ditches the ads and runs a few more tests too.
iDiagnostics for iPhone
The free iDiagnosis app is designed for the iPhone (and iPad) and monitors the touch screen, microphone, headphones, speaker, gyroscope, compass, Wi-Fi connectivity, sensors, volume controls, charger, Face ID, camera and more from your device.
You run each test individually, with some working independently and others requiring a response from you. A successful test shows a green check mark, a failed test shows a red mark. After the tests are complete, a Status Details screen shows you the results of each test, indicating whether it passed or failed and the date and time it was run.
Another screen shows various stats on your phone, including the OS version, amount of memory, screen size, resolution, pixel density, storage, and battery level.