Is your mobile failing? So you can find out what's wrong with him

Through hidden codes and third-party apps you can discover what failures your mobile is suffering.

Sometimes you can perceive that your mobile is failing, but you don’t know which component is having problems. In this guide, we explain the methods to use to find out what happens to your mobile and thus be able to solve errors before it is too late.

To find out which components are not working as they should, you can use hidden codes that allow a comprehensive hardware test or resort to third-party apps that fulfill the same function. Next, we will carefully see all the possible options to find out the failures of your mobile so that you can choose the one that interests you most.

Huawei Nova 5T featured

There are several methods that allow you to discover the failures that your mobile is suffering.

Is your mobile failing? So you can find out what’s wrong with him

Although the technology is becoming more advanced, there are mobile phones that continue to have a high failure rate. So it is It is recommended that you know how to find the damaged components on your smartphone if it is the case. On the one hand, you can do it through hidden codes, which vary by manufacturer, and, on the other hand, through applications dedicated to testing all the components of the terminal.

How to find out what happens to your mobile with hidden codes

Although it is an unknown function, most Android phones have a system diagnostic test that analyzes the operation of all the components. To access this hidden menu you must enter a code in the Phone app, figure that depends on the manufacturer of the terminal. Next, you will be able to know the codes to access the system diagnostic test of the best-known brands.

  • Samsung: writing the code * # 0 * # all together.

  • Xiaomi: writing the code * # * # 64844 # * # * all together or through the CIT menu.

  • Sony**: writing the code * # * # 7378423 # * # * all together.

  • HTC: writing the code * # * # 3424 # * # * all together.

  • Huawei: with the code * # * # 2846579 # * # * in the Phone app.

  • Motorola: with the code ## 4636 ##.

By entering these codes in the phone app, you will access the system test where you can see a list of all the components of the terminal. One by one, you can go checking the operation of those elements, like the screen, battery, WiFi or camera connection.

With that test, that no need third-party apps or root, you will be able to find out what happens to your mobile, get going to fix the errors and thus get the phone to work normally again. If, for some reason, this method does not convince you or does not work on your terminal, you can use the following: third-party apps.

How to find out what’s wrong with your phone with diagnostic apps

In the Play Store we find several applications dedicated to carrying out diagnostic tests on your mobile to help you find out what’s wrong. In this article you will be able to know three of the best mobile phone testing apps, all of them free.


TestM, an app that we already recommended a few years ago, is still one of the most popular tools to test the operation of the elements of a terminal. Free and also available for iOS, TestM is ideal for analyze the condition of the components and receive a general report in a few minutes.

Can test the screen, the microphone and the speakers, the battery, cameras and up to a dozen more components of your mobile. Without a doubt, TestM is one of the best apps you can download to find out what’s wrong with your phone and fix it.

Phone Doctor Plus

App Phone Doctor Plus

The Phone Doctor Plus app is available for both Android and iOS.

Another free application to find out what’s going wrong on your phone is Phone Doctor Plus, with more than 1 million downloads on the Play Store and also available for the iOS operating system. This app examine the status of about 30 items on your mobile and details where the problem is. For example, if you can’t open a web page, Phone Doctor Plus informs you about the exact failure of the network connection.

Touch screen, battery, memory, compass, microphone and speakers, flash, bluetooth connection and camera are some of the other elements that you can try with this application.

Phone Check

App Phone Check

Phone Check is a free app to test the components of your mobile.

Finally, you can also use Phone Check to quickly check if your mobile is working correctly or not. Memory, storage, battery, mobile networks or WiFi connection are some of the aspects that you can try with this app. If you receive the check in green, you can rest easy, everything is correct in the terminal. On the contrary, if the color is red, the mobile has bugs that you must fix.

Phone Check helps you test the operation of all components with a guided analysis that explains all the steps you must follow. When finished, you’ll see a full report on the phone’s status, and you can even send it to your email.

Discover more guides like this in our Guides section, get more out of your Android!

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