How to run diagnostic test on your smartphone

EddieEd · 发表于 2019-04-17 03:47:50

Built-in diagnostics tools[br][br]Android[br][br]Most Android phones have a few simple diagnostics tools hidden in the OS, but they vary between devices. The tools are found by typing codes into your phone app’s dialer—kinda like inputting cheat codes in a video game. Type in the codes below, and the menus should automatically open.[br][br]Here are the two main codes usable on most Android devices:[br] [br]*#0*# hidden diagnostics menu: Some Android phones come with a full diagnostics menu. You’ll be able to run a check-up for at least some of the phone’s hardware. However, this code isn’t available on all phones nothing happened when I tried the code on a Pixel XL, for example, though the menu appeared on a Samsung Galaxy S9. For those that do have access, it’s a handy trick. The menu offers a number of standalone tests to check the performance of your phone’s various parts, such as your screen (touch recognition, color accuracy), your cameras, sensor, and physical buttons like the power and volume controls.[br][br] [br]*#*#4636#*#* usage information 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 should be able to see app usage history; real-time wifi and cellular network connection stats; and basic phone information like the current service carrier, phone number, et cetera.[br][br]You don’t have to press the call button or anything else to open the hidden menus, they’ll just open automatically. If nothing happens when you type in the code, then your phone doesn’t have the feature. Similarly, some devices don’t provide very helpful information, like the aforementioned Google Pixel (which relies on Google collecting diagnostic information from your phone in the background). If that’s the case, then jump on down to the next section for some recommendations for third-party diagnostics apps.