How to Run Diagnostics on Android Phone

Are you planning to buy a secondhand Android Phone from your neighborhood or a friend? Then, it’s important to run a hardware diagnostics test on your Android Phone before purchasing it. A hardware diagnostics test encompasses a deep analysis of the smartphone’s processor performance and the hardware components, including the touchscreen, camera, speakers, microphone, and more. Just by entering certain codes on your Android Phone’s dial pad, you can enter into the diagnostic screen and perform the test. If you are unsure of how to do it, go through this guide.

What Can Hardware Diagnostic Tell About Your Android Phone?

A diagnostics test is more or less like a doctor’s checkup, which gives you the current health and information about your Android Phone. Using these test results, you can diagnose problems and understand the steps needed to restore a phone to its full potential. The following factors are the primary things that you can check under the diagnostics test.

• Audio system
• Camera
• Battery state
• LCD display
• GPS
• Touch-screen display
• Sensors
• Network connectivity, and more.

How to Use Android Secret Codes

To use the Android secret codes on your smartphone, follow the steps below.

• Get your Android Phone and open the dial pad.
• Now, enter any code using the numerical keypad.

• Once done, the process will start automatically if your phone supports the particular code. On the next screen, you will be prompted with a list of 36 tests to undergo on your smartphone.
• Choose the one, and test your phone’s hardware and other functions.

Best Secret Codes and Hardware Tests to Perform on Android Phones

The below is a list of hardware tests and secret codes that you can undergo on your Android Phone. Have a look at them and perform the test.

List of Hardware Tests for Android Phone

Here are some of the hardware tests that can be performed on Android Phones. However, these tests may vary according to the smartphone brand.

• Software Version: You can check various functionalities, including system stability, app compatibility, updates, security patches, overall user experience, and more.
• SIM Test: You can check the SIM card’s status and whether it is properly inserted and recognized by the phone. Then, you can verify the network signal strength and operator details.
• SD Card: It helps you check the read, and write speeds of your SD card, scan for potential errors on the card, and verify whether the card is detected and functioning properly.
• Motor: To check the functionality of various physical buttons and vibration motors on the smartphone, including the power and volume buttons.
• LED: You can check the LED notification light on your phone, including its brightness, color variations, etc.
• Touchpanel self-test: This allows you to test the responsiveness and functionality of your phone’s touchscreen by tapping on various areas of the phone screen.
• Touchpanel: To verify the touchscreen and LCD of your phone.
• Color: It is a color vision test that checks your phone’s ability to distinguish between different colors.
• Receive: To verify whether your smartphone can successfully receive data, signals, or messages.
• Play Music by Receiver: It is a way to test the sound quality of a receiver or speaker by playing a variety of music.
• Speaker Test: To verify the functionality of your phone’s built-in speakers by playing various audio tones at different volumes.
• Play Music by Speaker: You can check for blockages, volume, audio decoding problems, and speaker button issues.
• Headset Test: To check whether your earphones or headphones are functioning properly and to test the microphone quality.
• Main Mic Test: You can verify if your phone’s primary microphone is working properly.
• Sub Mic Test: To specifically check the functionality of the secondary microphone.
• Headset FM: To speak into the microphone and observe the audio level meter in your sound settings.
• GPS: You can check the accuracy and functionality of your Android phone’s GPS by viewing signal strength from different satellites.
• WiFi: This test lets you check the strength of the WiFi signal, check the internet speed, and identify potential issues with your network connection.
• WLAN Address: It provides you with a unique identifier for your phone’s WiFi connection.
• Bluetooth: You can primarily check if your phone can successfully detect and connect to other Bluetooth devices like headphones, speakers, etc.
• Bluetooth Address: To check the unique identifier of your phone’s Bluetooth connection.
• Gyroscope: It is used to measure the phone’s orientation and rotation.
• Accelerator: It measures the processing power of the phone, mainly on the CPU and GPU.
• Magnetic Sensor: It checks the functionality of your phone’s magnetometer, allowing you to verify your phone’s compass app.
• Proximity Sensor Test: A function that allows you to check if the proximity sensor on your phone is working properly.
• Light Sensor Test: It tests the function of the phone’s ambient light sensor and whether it is working properly by displaying how the sensor reacts to different levels of light in the environment.
• OTG Plug-In: To check whether your phone allows you to connect to other devices using a USB cable or adapter.
• Charger Test: This test allows you to check if your phone’s charging system is working properly by monitoring the charging speed and voltage when plugged into a charger.
• Master Back Camera: It is a test for the phone’s rear camera capabilities, including color reproduction, zoom performance, autofocus accuracy, and more.
• Back Camera Aux_4&5: It is used to test the auxiliary camera connection on a rear-facing camera.
• FrontCamera: A function to test the phone’s settings, such as front-facing camera, focus, color accuracy, image quality, and more.
• Finger Sensor Test: To check whether the fingerprint sensor is working properly by placing your finger on the sensor.
• FingerprintEncroll: It is the process of scanning and testing your fingerprint multiple times on the phone’s fingerprint sensor to register and use it as a security method to unlock your device.
• Battery Capacity: It helps you to measure how a battery performs under a simulated load.

Hardware Test Codes for Top 20 Android Smartphone Brands

These codes can tell you important details about your phone’s hardware and software. Use these codes as shortcuts based on your Android Phone and perform various tasks.

Can I Use Third-party Apps to Run Diagnostics Test on Android Phone?

Yes. You can also use third-party software to run diagnostics test and to gather information about your Android Phone. Some of the best third-party apps for Android Phones are Phone Check and Test, TestM, Phone Doctor Plus, Phone Diagnostics Software, and more. This type of software is designed to be fast and efficient than secret codes.

It is easy to access, use, and understand, and doesn’t require any hidden codes or menus. All you have to do is just download the software, run the program, and receive a clear report of the phone’s working condition. Using the third-party software will be much easier to run a hardware diagnostic test for large batches of smartphones.

FAQ