How to Run Diagnostics on iPhone or Android Device – Guide

Perhaps you have encountered problems with it and need to troubleshoot. Or maybe you want to sell or donate your device and want to make sure it’s in good condition. Whatever the reason, you can run a diagnostic on your phone with a handy app called TestM. Developed for iOS and Android, TestM can run diagnostic tests to check screen, sound, camera, connectivity and other functions. You can run a full test that checks all features. You can run a quick test to check just a few key components. You can run tests for a specific group. your camera or its connectivity. And you can only test one feature. Many of the tests are interactive and require you to take a selfie, listen to audio, or tap specific areas of the screen. Upon completion of the test, the application will present a status report indicating any issues. You can share this report via email, messages or any other service. And while the app is geared towards mobile phones, it supports the iPad. The only downside is that, being a free app, TestM releases ads regularly so you have to deal with them.


most androids phones have some simple diagnostic tools hidden in the operating system, but they vary between devices. The tools are found by typing codes into your phone app dialer — how to enter cheat codes in a video game. Enter the codes below and the menus should open automatically. Here are the two main codes usable on most Android devices:

#0# hidden diagnostics menu:

some androids phones come with a full diagnostics menu. You will be able to perform a check-up for at least some of the phonehardware. However, this code is not available on all phones— nothing happened when I tried the code on a Pixel XL, for example, although the menu appeared on a Samsung Galaxy S9. For those who have access, it is a practice trick. The menu offers several independent tests to check your phone’s performance from various parts of it’s screen (touch recognition, color accuracy), your cameras, sensor and physique. buttons like the power and volume controls.

##4636## usage info menu:

This menu will show up on more devices than the hidden diagnostics menu, but the information shared will be different between devices. At the very least, you’ll be able to see the app’s usage history; real-time cellular and wifi connection statistics; and basic phone information such as the current service provider, phone number, etc. You don’t need to press the call button or anything else to open the hidden menus, they will open automatically. If nothing happens when you enter the code, then your phone don’t have the feature. Likewise, some devices don’t provide very useful information, such as the aforementioned Google Pixel (which relies on Google to collect diagnostic information from your device). phone in the background). If that’s the case, go to the next section for some recommendations for third-party diagnostic apps.

Phone Verify and Test (Android)

Phone Check and Test is a simple looking app, but it does a lot more than just checking that your phone’s hardware is “working”. A full scan includes comprehensive CPU, memory and battery diagnostics, and the test gauges are very detailed. This does Phone Check and Test is a little less user-friendly than TestM, but it is an excellent troubleshooting tool that provides a lot of data. The free version has ads, but they are minimal, and you can upgrade to Plus for just $2 to remove them. The Plus version also adds a few more testing tools and allows you to run independent tests for each piece of hardware separately, saving you time on a full system scan.


Apple is notorious for its products being “walled gardens”, which makes it difficult for users to perform DIY check-ups and fixes on their devices. Unsurprisingly, you won’t find any built-in diagnostic tests that you can run on an iPhone. That said, the iPhone settings include detailed reads on battery performance and history. To find this data, go to Settings > Battery.

Running diagnostic checks

With limited options available on iOS, the only real option to run diagnostics on your iPhone or iPad is to use a third-party app. These apps are also useful for Android phones that don’t have built-in diagnostic tools – or if you want a more detailed (and less complicated) way to test your phonehardware.

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