Wondering if your smartphone is healthy? Whether it’s a used phone you just bought or an older device you’re looking to sell, you can put it through a series of diagnostic tests. Some Android devices have built-in diagnostic tools, but the App Store and Google Play Store also offer third-party diagnostic tools.

Apps like Phone Doctor Plus, Phone Diagnostics, Phone Check and Test, and TextX can run a battery of tests to check touchscreen, audio, video, camera, microphone, sensors, and more. other components of your phone. Here’s how they work.

Run diagnostics on Samsung phones

Samsung’s Galaxy line of smartphones has a built-in diagnostic tool accessible from the keyboard. Open the Phone app and tap Keyboard, then type *#0*#. A diagnostic screen appears with buttons for a variety of tests.

Faucet Red, Green, Where Blue to test these pixel colors. Faucet Recipient check the sound, Vibration to try the vibration function, or Sensor to test the accelerometer and other sensors. You can also touch To touch then move your finger across the screen to test the touchscreen, or press Low frequency to test low frequency sounds.

When your test is complete, touch the screen or press the back button to return to the main screen. If you press the back button on the main menu, you will be returned to the Phone app.

Samsung members for Samsung phones

samsung members

Samsung offers its own free app called Samsung Members, which can be downloaded from Google Play. It provides sales and technical support, as well as an integrated diagnostic tool. Open the app and tap the Diagnostic button on the home screen.

Tap individual icons to run diagnostic tests on Battery, SIM, Sensors, Touchscreen, Flashlight, Camera, Microphone, Speaker, Bluetooth, Wi -Fi, etc. Otherwise, press the Test everything button to perform all the tests one after the other. If the test is successful, a checkmark appears on its icon.

Run diagnostics on Motorola phones

device help

Motorola phones can use the Device Help application, which is pre-installed on some devices. Open the app and tap Device diagnostics. To choose Troubleshoot to test touch screen, battery, sound, camera, connectivity, etc.

To select Hardware testing to run diagnostics on the display, backlight, touchscreen, multi-touch capability, flash, front and rear cameras, and proximity sensor. Run a test by tapping the icon of the feature you want to run. You can tap Full Test on the Hardware screen to perform all available diagnostics.

Phone Doctor Plus for iPhone and Android

phone doctor plus

Designed for iOS and Android, Phone Doctor Plus starts by showing you a list of different tests to run, including those for memory, processor, speaker, microphone, Wi-Fi, Bluetooth, GPS, touch screen, camera, charging and many more. . Press the Player to run all tests or swipe left to view a list of all available tests that you can run individually. The application then displays the results of all tests.

The app also provides a status screen that shows your battery charge, available storage, free memory, and network bandwidth. It also finds and displays your phone’s trade-in value. The Android app also runs an inventory report that makes sure all phone components are original and a battery health test to check your battery status.

Phone diagnostics for iPhone and Android

phone diagnostic app

Available for iPhone and Android, Phone Diagnostics offers a range of tests to check your touchscreen, camera, speaker, microphone, Wi-Fi, cellular access and many other components. Simply press the button for the test you wish to run or press To start up run all the tests one after the other.

The multi-touch test asks you to place three fingers on the screen. The camera test takes photos using the front and rear cameras, while the video recording test records a quick video using the rear camera. The movement test asks you to move your phone and the GPS test checks your location on a map.

The app does not generate any reports or results, but each successful test turns its button green, while a failed or aborted test appears red. The app may also attempt to direct you to a repair shop if your phone needs fixing. The basic version is free with ads, but you can pay $1.99 to go ad-free.

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Check and test phone for android

phone verification

Designed for Android, Phone Check and Test lets you trigger a full suite of diagnostics on your device. The app starts with an overview to explain how it works, how to run its various tests, and what each test encompasses. A monitor screen shows you current memory, storage, battery, Wi-Fi and cellular usage.

To run the guided tests, select the features you want to include. The app can check your battery, network connectivity, audio, display, touchscreen, GPS, camera, and sensors, among other features. Some of the tests run automatically, while others require your input.

After each test, you can press Okay if your phone goes or Disagree if something raises a red flag. You can also skip any test and move on to the next one. A summary screen then displays the results of each test.

TextX for iPhone


Designed for the iPhone (and iPad), the free TestX app can run diagnostics on the touchscreen, headphones, speaker, microphone, accelerometer, compass, Wi-Fi, your phone’s Bluetooth, battery, sensors, camera and flash.

The application offers great flexibility to run the different tests. You can choose Quick Scan to check key features or press Full Scan to check everything. Alternatively, you can perform all tests of a certain category or just run a specific test.

A green circle indicates a test that has been successfully completed. After running the necessary tests, you can generate a full report to see the results. As a bonus, the app provides password-protected access to notes, files, photo albums, and other content you want to create and secure.

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