The touch screen of your Android phone or tablet does not work or introduces problems of operation?Well, the solution may be simpler than you imagine.
Before you begin, it is good to ensure a few things: empty the memory of your device, deleting photos, videos and applications that you do not use. After, disconnect your Android device, count to ten, and then turn on the power again. In many cases, only do this already solves any problem in the touchscreen of the Android. If still not resolve, it is time to begin the step-by-step resolution of problems.
Problems at the Touch of the Phone or Tablet: Diagnostic Tool
The method to be used depends on the phone model, but the general procedure is similar. It is used in a test system built on the Android operating system for testing or touchscreen. Keep in mind that this test system changes a little in each device, and you will not have problems.
The name of this test system is a Diagnostic Tool, that allows you to test various components of the Android device, such as sensors, buttons, and the screen of the device.
To open the diagnostic tool, you will need to enter a code in the dialer of your Android device. Codes for the manufacturers Android the most popular are:
- *#7353# – Samsung
- *#*#3424#*#* – HTC
- *#*#7378423#*#* – Sony
- *#0*# – Motorola
- 2945#*# OR 2945*#01*# – LG
It may be necessary to tap the dial button or not (some models open the diagnostics menu automatically. It is then that we will begin our testing.
Testing the Touch Screen of the Android
Type the code that activates the diagnostic tool on your device. In the list of options that appears, you have two types of test to the screen: TSP Dot mode and TSP Grid Mode (the grid).
In Dot mode, it will be placed a mark on each point that you press on the screen of the device.
In Grid mode, a grid dividing the screen into several sections allows you to test each sector on the touch screen to see if all the parts are working correctly. This is the best way to test, since it can detect the points where the smartphone or tablet is failing.
In both cases, you will tap the screen at various points, testing you, to know whether the device is detecting the touches.
How to Fix the Screen on Your Phone or Tablet?
After the diagnosis of the problem, if you found that there is some problem in the screen, it is time to repair the display of your Android device. The step-by-step repair is simple.
- Mobile does not display any signs of physical damage: the chances are that you have a software problem. Update the Android system, remove the battery from the device, or return the same to the factory settings.
- Cell phone does not shows signs of physical damage, and other solutions have been attempted: it may be that the screen has been damaged or a connector has come loose. In this case, or you will have to open the unit or take it to a repair center to check what is the possible defect.
- The cell phone has already suffered some kind of damage: it can be moisture damage, falls, esbarrões, impacts, heat, cold, or dust in excess. Will be required for the replacement of the screen or the components needed to detect the touch.
Safe Mode Android
To be 100% sure that the problem of the display hardware of the mobile phone, you can connect your Android in safe mode. Press the button to turn off and when you get the options, press the button on the screen off for a few seconds. When the cell phone questions if you want to restart in safe mode, tap OK. This way, your Android device will load only the applications essential to its operation. If the screen is still not working, great are the chances to be a hardware problem.
Display with Stripes, Black Spots and Other Problems
Displays may also exhibit other problems, such as colors that are not shown properly, stripes on the screen, black dots on the screen of the device, etc. The same steps for the diagnosis of the problems and the solutions of problems of sensitivity to touch.
It is necessary to remind the readers that there are cases in which device screens and digitizers (the “translators” of the taps on the screen for commands) may have some problems after some time of use, or manufacturing problems. Some manufacturers offer warranty for these problems, and in other cases, you will need to pay for the repair out of your own pocket.
There are applications that also help to test the sensitivity to the touch and the color of the device. Just download them directly from the Play Store.
Got any questions about how to diagnose problems in the display and touch the phone? Is a problem that needs solving? Share in the comments and we will be happy to help!