Mobile devices come in with tight hardware integration and are not designed to be upgraded by the users, like their larger brethren, they come in mobile operating systems. It is due to this reason that, troubleshooting mobile devices are way more sophisticated than desktop and portable computers. We will look at the common mobile issues across all devices and some of the procedures to take care of those issues.
Touchscreen and display issues
Modern mobile devices come in with a touchscreen and some may come in with additional variations but touchscreen prevails. This is one of the urgent issues that needs to be addressed seems a smartphone is defamed without the use of the screen.
Mobile devices have brightness control that is set on either auto-mode or manually. The settings may not always work perfectly. Some apps directly control the brightness to adjust to their apps need to provide proper comfort to the user.
An always dim display could be a sign that the panel is having some issue but always check the settings for display first. Manually change the brightness level and turn off auto-adjusting mode, and see if they cover the appropriate range of output. If it does output as you expect and have seen before, you may be looking at the panel issue. If it behaves right, something might be controlling them.
These whole auto-adjustments works by the input coming from either the front or back camera. Make sure they are not covered or have a layer of dust or filth, which may be blocking the detection of the appropriate brightness. One thing often happens which confuses user is when the device is in a dim room but the brightness is quite higher. The reason for this is often, the device is pointed towards a light source that is not present in the room enough to illuminate but it is somewhere outside and the device is picking it up, setting the brightness accordingly.
Keep an eye on the apps that control the brightness. These apps were written in such to control the behaviour of the brightness. These can be some amount of brightness on the screen on some part or the whole app-wide. For instance, using an app like any e-reader. They often interfere with the display brightness for the right reading experience.
This may lead to the strange behaviour of your phone’s brightness. Generally, you want to manually set the brightness or set it auto again and see if the problem still persists even though you are not using the e-reader app, and make sure you completely close the app before resetting the adjustment. If the problem still remains, you might want to perform a soft reset. Meaning, reboot the device. Typically, a soft reset does the job and brings back the device’s usual behaviour.
Sound issue with the speakers
One of the most obvious reasons for no sound on the device is often the volume is turned down all the way or it is on mute. If this is happening automatically, you need to trace back the apps you have used and see which app may be the suspect by carefully analysing them. This generally requires you to get down the layers of configuration settings for both the app and device. The device may have completely separate settings for controlling the media, where you could easily make the mistake of turning down the slide for the one you did not intend to. These devices also have hardware buttons to control them. Press them and see if it works. If that did not work, you may need to go through the configuration settings. If none of these works, then you might be looking at the hardware level issues where something might happen to the speakers. You will likely need to take them to the service centre for repair.