Does the touch screen on your Android phone or tablet not work or have malfunction? Well, the solution may be simpler than you might think.
Before you begin, it’s a good idea to make sure you have a few things to do: Empty the memory of your device, deleting photos, videos, and applications you do not use. Then, turn off your Android device, count to ten, and then turn it on again. In many cases, doing so already solves any problem on the Android touchscreen. If it still does not resolve, it’s time to get started troubleshooting step by step.
Mobile or tablet touch issues: diagnostic tool
The method to be used depends on the cellular model, but the general procedure is similar. It uses a test system built into the Android operating system to test or touchscreen. Keep in mind that this testing system changes a bit on each device and you will have no problems.
The name of this testing system is Diagnostic Tool, which allows you to test various Android device components, such as sensors, buttons, and the device screen.
To open the diagnostic tool, you’ll need to enter a code on the dialer of your Android device. Codes for the most popular Android manufacturers are:
- * # 7353 # – Samsung
- * # * # 3424 # * # * – HTC
- * # * # 7378423 # * # * – Sony
- * # 0 * # – Motorola
- 2945 # * # OR 2945 * # 01 * # – LG
It may be necessary to touch the dial button or not (some models already open the diagnostics menu automatically, so we will start our tests.
Testing the Android touch screen
Enter the code that activates the diagnostic tool on your device. In the list of options that will appear, you have two types of test for the screen: TSP Dot mode and TSP Grid mode.
In Dot mode, a mark will be placed at each point you press on the device’s screen.
In Grid mode, a grid dividing the screen into multiple sections allows you to test each sector of the touch screen to see if all parts are working properly. This is the best way to test, as it can detect spots where your smartphone or tablet is crashing.
In both cases, you will touch the screen at various points, testing to see if the device is detecting the ringtones.
How do I fix the screen on my phone or tablet?
After diagnosing the problem, if you find that there is a problem on the screen, it’s time to fix the display of your Android device. The step by step of the repair is simple.
- Cell phone does not show any signs of physical damage: chances are you have a software problem. Update the Android system, remove the battery from the device, or return it to the factory settings.
- Cell phone shows no signs of physical damage and other solutions have been attempted: the screen may have been damaged or some connector has come loose. In this case, either you have to open the device or take it to a service center to check for a possible defect.
- Cell phone has already suffered some kind of damage: it can be damage by humidity, falls, bumps, impacts, heat, cold, or excess dust. It will be necessary to replace the screen or components needed to detect the touch.
Android Safe Mode
To be 100% sure that the display problem is the phone hardware, you can turn Android on in safe mode. Press the power off button and when the options appear, press the button on the power off screen for a few seconds. When your phone asks if you want to restart in safe mode, tap OK. That way, your Android device will only load applications that are essential for its operation. If the screen still does not work, chances are it’s a hardware problem.
Display with stripes, black dots and other problems
Displays may also have other problems, such as colors that are not displayed correctly, stripes on the screen, black dots on the device screen, etc. The same steps for diagnosing problems and solutions to touch sensitivity problems.
Readers need to be reminded that there are cases where device screens and scanners (the “onscreen” translators for commands) may experience problems after some time of use or fabrication problems. Some manufacturers offer warranty for these problems, and in other cases, you will need to pay for the repair from your own pocket.
There are apps that also help you test your device’s touch sensitivity and color. Just download them directly from the Play Store.
Any questions about how to diagnose issues with the display and touch of the phone? Do you have a problem you need to troubleshoot? Share the feedback and we’ll be happy to help!