How To Fix Part of the Touch Screen Not Working on Tecno Spark 20 Pro

You probably touch the screen of your phone hundreds of times per day. It’s no surprise that smartphone touchscreens are one of the most common components to fail, given their delicate glass construction. However, a part of the touch screen not working on your Tecno Spark 20 Pro does not necessarily mean it is a hardware issue. There could be other reasons why your Android’s touch screen stopped responding.

If your phone’s touchscreen frequently fails to respond, there are several things you can try before calling a professional. This article will reveal those proven fixes you can easily perform independently.

Part 1. Why Is Part of My Screen Not Working

There are two possible causes as to why your phone’s touch screen is not working. One is the touch screen may have been damaged, and the other is the Tecno Spark 20 Pro device may be experiencing technical difficulties.

If you drop your phone and it becomes stuck against something, the touch screen’s connectivity may fail. Only a part of the touch screen may sometimes become damaged and unresponsive. That may also occur when there is a technical failure, such as the phone hanging. A part of the touch screen not working can occur when malware is downloaded or when phone settings are changed.

Now, the problem can affect any Android phone, and users may encounter the following error messages on their respective phone models:

Tecno Spark 20 Pro P40 lite half touch screen not working
Nexus touch screen not working
LG screen is unresponsive to touch
Tecno Spark 20 Pro left side of the screen is not working
Redmi’s whole screen is unresponsive to touch

Part 2. Different Types of Touch Screen Issues and What You Should Check Before Fixing

You may experience a variety of touch screens not working on Android issues:

A certain part of the touch screen is not working.
Your touches do not register on the touch screen.
The touch screen incorrectly responds to your touch.
Half touch screen is not working.
The touch screen becomes frozen or hangs.
The screen flashes, flickers, or remains blank.
Theleft side of the phone screen is not working.

Before proceeding to how to fix an unresponsive touch screen on an Android device, you should complete the following steps:

Examine the screen of your device. Check to see if it is cracked or chipped.
If the screen is damaged, it must be replaced.
Remove the Tecno Spark 20 Pro device cover and screen protector if they are not damaged.
If there is a sticker on the Tecno Spark 20 Pro device screen, you must remove it.
Before continuing, make sure your screen is spotless.

Part 3. How To Fix Part of the Touch Screen Not Working (No Physical Damage)

If you have already tried running the Tecno Spark 20 Pro device in diagnostic mode and verified that it is not physically damaged, then the problem is most likely technical. If your Tecno Spark 20 Pro’s screen is not responding to touches for technical reasons, follow the methods below to resolve the issue.

Restart Your Device

When your touch screen stops working, the first thing you should do is restart your device. The operation is known as soft resetting. You cannot turn your device off from the option on the screen because the touch screen is not responding. Here are the steps to take.

Step 1: Hold the “Power” button until the Tecno Spark 20 Pro device turns off.

Tip: If you hold down the power button for a few seconds, you will see the “Power Off” and “Restart” options on the screen. You can’t use it because the entire screen isn’t responding. Hence, you should press and hold the “Power” button for as long as necessary.

Step 2: When the Tecno Spark 20 Pro device turns off, wait a few seconds.

Step 3: Press and hold the “Power” button to restart the Tecno Spark 20 Pro device.

Check to see if the Android auto touch screen is not working problem has been resolved. Otherwise, proceed with the following methods.

Turn On Safe Mode

You should switch to Safe mode whenever an application or piece of software causes a problem on your device. Only the most fundamental system components are loaded and used when operating in Safe mode.

If your touch screen is functional in safe mode, the issue is most likely internal. You can quickly fix the Android touchscreen issue by following the prompts given below to activate the safe mode:

Step 1: To force a restart, press and hold the Tecno Spark 20 Pro device’s “Power” button for an extended period.

Step 2: Maintain pressure on the “Power” button. Take your finger off it once you see the manufacturer’s logo.

Step 3: When you let go of the “Power” button, press and hold the “Volume Down” button. After that, a “Safe Mode” label will appear in your screen’s lower-left corner.

Turn Off Developer Options

Every smartphone is bound to have limitations. However, smartphone makers include a “Developer Options” menu for advanced users. Here, restrictions are removed, and user preferences can be customized.

If you enable Developer Options on some Android devices, they may stop working properly. If you have recently activated Developer Options and your touchscreen is no longer responding as expected, you should disable it. To do so, follow the instructions below:

Step 1: Launch the Settings app on your device.

Step 2: Select the System menu item, which usually locates at the bottom of the screen.

Step 3: Tap the Advanced options menu, then select Developer Options.

Step 4: You will then find the switch to turn it on or off. Disable itby toggling the button off.

Step 5: Restart your device to check if the part of the touch screen not working issue has been resolved.

Reset Device to Factory Settings

Resetting your device to its factory settings will return it to its state when you first unboxed it. All your phone’s data and installed apps will be erased, including any malware on your device that may be causing the issue to occur. Here’s how to restore your device to factory settings:

Step 1: Since your touch screen is not working, you can factory reset it using Google’s Find My Device web service.

Step 2: Go to Find My Device from any device and sign in to the Google account associated with the damaged screen device.

Step 3: After successfully logging in, you will see your device’s name. Select the Erase Device option.

Step 4: Confirm by pressing the Erase Device button.

Tip: Since all your data will be removed, it’s recommended to back up your data first before resetting your device to factory settings.

Part 4. Fix Using a Third-Party App – Wondershare Dr.Fone

If you’ve exhausted all other options and still can’t fix your Android’s part of the touch screen not working issue, it’s time to resort to Dr.Fone – System Repair! It allows you to repair Android system issues with a single click.

Many users have reported exceptions on their Android devices, such as touch screen failure, black screen of death, system UI failure, app crashing, etc. And in this case, people should seek an Android repair tool.

Dr.Fone – System Repair has made it easier than ever for Android users experiencing technical issues with their device, including an unresponsive touch screen, among other system issues. The best part is that no data will be lost while repairing Android system issues.

Follow the steps given below on how to use Wondershare Dr.Fone System Repair for Android:

Step 1: Select the System Repair option from the main window after starting Dr. Fone.

Step 2: Connect your Tecno Spark 20 Pro or tablet to the computer using the appropriate cable. Choose Android Repair from the three options shown on the left side of the screen.

Step 3: The device information screen will appear in the next window. There, input your device’s unified brand, name, model, country/region, and carrier information. Then click Next after you confirm the warning.

The Android repair procedure may wipe out all data on your device. To confirm and proceed, enter “000000”.

Note: It is strongly advised that you back up your Android data before attempting Android repair.

Step 4: Before repairing your Tecno Spark 20 Pro, you must boot it into Download mode. To boot your Tecno Spark 20 Pro or tablet into DFU mode, follow the steps below:

For a device that has a Home button:

Turn off your phone or tablet.
Hold the Volume Down, Home, and Power buttons for 5 to 10 seconds.
To enter Download mode, release all the buttons and press the Volume Up button.

For a device that lacks a Home button:

Turn off the Tecno Spark 20 Pro device.
Hold the Volume Down, Bixby, and Power buttons for 5 to 10 seconds.
To enter Download mode, release all the buttons and press the Volume Up button.

Step 5: Then press the Next button. The program will then download the firmware. After downloading and verifying the firmware, the program will automatically repair your Tecno Spark 20 Pro. And in a while, your Tecno Spark 20 Pro’s system issues will be resolved.

Supported OS

Check Dr.Fone’s supported operating systems below before using the application to fix your mobile technical issues.

Platform	Supported OS
Windows	Windows 11/10/8.1/8/7/Vista/XP
Mac	Mac 14/13/12/11/10.15/10.14/X/10.13/10.12/10.11/10.10/10.9/10.8

Key Features

Dr.Fone – System Repair is a data management and recovery tool that contains several toolkits in one program, each designed to repair a specific phone problem. Check out its key features below:

One-click Android Repair Tool
Troubleshoots and repairs a wide range of Android system problems, including black screen of death, Play Store not working, apps crashing, phone stuck in a boot loop, and bricked Android issues
A high success rate for fixing Android system issues
Fixes Android system back to normal

Pros

Here are the advantages of using Dr.Fone – System Repair:

Highly intuitive UI/UX/. No need for any skill to operate it
Provides a comprehensive set of toolkits, including advanced data recovery and system repair
Data management is simple and seamless for both Android and iOS devices
Data backup with Dr. Fone is simple and quick.

Cons

Check below to know Dr.Fone – System Repair’s limitations:

Depending on the toolkit required, the program can be costly.

safe & secure

Conclusion

Fixing an Android part of the touch screen not working issue can be quickly done with just a few fixes you can do on your own. However, there may be times when the solutions provided above may not work, and the worst part is factory resetting your phone erases all your data.

That’s why Dr.Fone – System Repair might be your best solution. It has all the tools you need to keep your Tecno Spark 20 Pro 100%. Not only that, but with Dr.Fone, you can repair your Android system issues without dealing with any data loss.

Gmail Not Working on Tecno Spark 20 Pro: 7 Common Problems & Fixes

Ever since Android is introduced, it has almost eliminated the need of computers to work through Gmail. Gmail carries much importance especially when you’re a working person. A lot of work is done through mails on daily basis. But maybe today is not your lucky day. Maybe Gmail is giving you a hard time today. Is it? Is your Gmail not responding or keeps stopping you from going further? Well! There is no need to be bothered anymore. We are discussing some of the general Gmail problems along with their fixes. So, if your Gmail is not working on Android, you can go through this article and find the relevant solution.

Problem 1: Gmail App not responding or keeps crashing

First and foremost, the most common situation people meet with is when there Gmail keeps crashing. Or simply, it doesn’t respond at all. When you open it, it stuck for a few seconds and then you have to close it. It seriously is an annoying issue. If your Gmail is also not responding or crashing and you aren’t able to work properly, following are the solution you can follow.

Clear Cache

The first thing you can do to fix Gmail not responding issue is to clear the cache of Gmail. This has higher chance to get the issue resolved. To do this:

Go to “Settings” and look for “Apps & Notifications”. Please note that the option may vary in some Android phone like it maybe “Application” or “App Manager”. So, don’t panic and look for the option carefully.
Now, from the apps list, search “Gmail” and tap on it.
Go to “Storage” followed by “Clear Cache”.

Restart the Tecno Spark 20 Pro device

Restarting the Tecno Spark 20 Pro device in the first place simply resolves many problems and so in the instance when Gmail keeps stopping. Simply long press the power button of your device and restart the Tecno Spark 20 Pro device. See of the problem gets vanished or not.

Factory Reset the Tecno Spark 20 Pro device

The next option that you can try is resetting your device. This will lead to data loss so we suggest you to take backup firstly and then proceed with this method.

Hit on “Settings” and search for “Backup & Reset” option.
Tap on “Reset” or “Erase all data” (the option name again may vary).

If unfortunately the above solutions don’t work, there is a requirement to flash the stock Android ROM again. Before you wonder how, there is a professional one-click tool that can surely be of assistance. It is Dr.Fone - System Repair (Android) . The tool takes special care of the Android phones and fixes almost every system issues with ease. It takes no special technical skills and performs efficiently.

Problem 2: Gmail won’t sync between all ends

The next most common problem where people get stuck with is when there Gmail won’t sync. Here are the solutions to this particular problem.

Make Space in the Phone

When Gmail stops syncing, one of the things that can save you is clearing the storage. It is the space that maybe the culprit and therefore the syncing don’t work at all. We would like to suggest you removing the unwanted apps to clear the storage or deleting the downloaded files. You can also transfer the important files to your computer and make the space vacant.

Check Gmail Sync Settings

When still the Gmail not working issue persists and you can’t sync, make sure to check the Gmal sync settings. For this, follow the steps below:

Launch the Gmail app and tap on the menu icon (three horizontal lines).
Tap “Settings” and choose your account.
Check the box next to “Sync Gmail” if it’s not checked.

Restart the Tecno Spark 20 Pro device

Again, restarting can also be helpful in this situation. When you boot the Tecno Spark 20 Pro device again, check if your Gmail can sync or not.

Problem 3: Gmail won’t load

In case you are using the Gmail over your web browser and it has tested your patience in loading, here are the solutions that could prove to be fruitful for you. Please check these out.

Ensure to Use Gmail Supported Browser

First of all, you need to make sure that the browser you are using works with Gmail or not. Gmail can smoothly perform in Google Chrome, Firefox, Safari, Internet Explorer and Microsoft Edge. However, the browsers should be updated. So, please make sure that these browsers are running on the latest versions. Moreover, in case you use Chromebook, don’t forget to update the operating system in order to let it support Gmail.

Clear Cache of web browser

If you tried the above method but to no avail, try to clear the cache and cookies of the web browser. But by doing so, the browser history will be removed. As well as, the records of the websites you previously enjoyed will also be lost.

Check browser extensions or add-ons

If not the above one, try this tip. It encourages you to check your browser extensions. Perhaps these are interfering with the Gmail and due to this conflict, Gmail won’t load. You can either turn off these extensions and plug-ins temporarily or make use of the incognito mode of the browser where there are no such things like extensions and plug-ins.

Problem 4: Gmail can’t send or receive

Gmail also gives you problem in sending or receive mails and messages. And to troubleshoot such issue, following are the solutions mentioned.

Check the Latest Version of Gmail

This issue is likely to emerge when you are using an outdated version of Gmail. And therefore, the first solution says you to check if the Gmail update is available. You can go to the Play Store and from the “My apps & games” option, you can see if Gmail needs to be updated or not.

Verify Internet Connection

Another thing that carries weight while you can send or receive mails is the internet connection. As we all know that Gmail won’t respond if the Tecno Spark 20 Pro device is not connected to the internet. Therefore, you are advised to turn off Wi-Fi and then enable it again. Also, please ensure to switch to Wi-Fi if you are using the cellular data. This may hamper the process and stop you from receiving or sending mails.

Remove you Account and Add Again

If still Gmail keeps stopping you to go ahead, make sure to once sign out from it. To do this:

Open your Gmail app and go to “Manage accounts on this device”.
Now, tap on the account you are working with. Tap on “REMOVE ACCOUNT” thereafter. After this, you can again sign in and then check if the problem is gone or not.

Problem 5: Stuck in sending

Now, here is another annoying problem that doesn’t let Gmail working on Android properly. This problem addresses the situation where users send a mail but it gets stuck on sending. If this is the problem that you are going through, the following solutions will help you.

Try Alternative Gmail Address

First of all, if Gmail is not working due to stuck in sending issue, we advise you to make use of some other Gmail address to send the mail. If the problem still occurs, jump to the next solution.

Check Network Connection

As already mentioned, be sure of an active internet connection while working with Gmail. When you are not using a stable connection, it may lead to stuck on sending, Gmail crashing and many other issues. You can fix the issue by doing these three things:

Most importantly, use only Wi-Fi rather than cellular data if you want a smoother process.
Turn off Wi-Fi and then turn it on again after nearly 5 seconds. Do the same with the router. Plug it out and the plug in.
Lastly, turn on Airplane mode and after a few seconds, turn it off again.

Now try to send the mail and see if things are still the same or not.

Check Attachments

Large attachments can also be the reason for this issue. We would here like to suggest you to check the attachments you are sending. If these are not so important, you can remove them and send the mail. Or if it is not possible to send the mail without attachments, compressing the files can be a solution.

Problem 6: “Account not synced” issue

Many times, the users get the error that says “Account not synced” while they try to work with Gmail. And this is the 6^th problem we are introducing. The ways mentioned below will assist to get out of the trouble.

Make Space in the Phone

When Gmail stops to further the process by prompting “Accounts not synced” issue, be sure that your Tecno Spark 20 Pro has some storage in it. If not, create it straight away. As we also mentioned in one of the above solutions, you can either delete the unnecessary files or transfer the important files to the PC to make the space in the phone. Go along with this tip and see if it works.

Check Gmail Sync Settings

As another solution, check Gmail sync settings to get the issue fixed.

Simply open Gmail and hit the menu icon which is three horizontal lines on the top.
Go to “Settings” and choose your account.
See the tiny box beside “Sync Gmail” and check it if it is not.

Restart the Tecno Spark 20 Pro device

If the above method went futile, simply restart your device. Take help of the Power button on your device. Long press it and from the options, restart it. This will hopefully work for you.

Problem 7: Gmail app running slow

The last problem that you may face is the slow-going Gmail app. In simple words, you may experience that Gmail app is operating extremely slowly. To fix this, following solutions will help you.

Restart the Phone

It is a universal method to fix minor Android system issues. And here too, we would like you to restart your Tecno Spark 20 Pro in the first place when you find that Gmail is not responding due to the sluggish behavior.

Clear Storage of Device

Usually all the apps start running slow when the Tecno Spark 20 Pro device is not having sufficient space. As the apps need space to function quickly and appropriately, having the Tecno Spark 20 Pro device on low storage can prove to be a bad luck for Gmail. So, make sure you wipe out the items you no longer needed on your device and create some room so that the Gmail responds nicely and won’t be running slow anymore.

Update Gmail App

As the last tip that will indeed help you is to update the Gmail app. Until you update the app when required, Gmail keeps stopping you from working and you will definitely get frustrated. Therefore, go to Play Store and look for the Gmail update. If it is available, welcome it with smile and bid farewell to the problem of slow running Gmail.

What if your problem still doesn’t get resolved after following these 3 tips? Well! If that is the case, we will again recommend you to make use of an expert one-click tool to flash the stock Android ROM.

Dr.Fone - System Repair (Android) is going to help you serving the purpose. This mighty tool possesses huge success rate and one can rely on it for its simplicity and security. It is designed to work with numerous problem related to Android system. So, no matter if your Gmail keeps crashing or keeps stopping, it has the solution for everything.

Dr.Fone - System Repair

Fix all Gmail issues caused by Android system:

Gmail app corruption or not opening
Gmail app crashing or stopping
Gmail app not responding

Simple Solutions to Fix Android SystemUI Has Stopped Error For Tecno Spark 20 Pro

In this article, you will learn possible causes of Android SystemUI stopping error and 4 methods to fix this issue. Get Dr.Fone - System Repair (Android) to fix Android SystemUI stopping more easily.

Android SystemUI isn’t responding or Android, unfortunately, the process com.android.systemui has stopped is a not a rare error and is observed in all Android devices these days. The error usually pops up on your device while you are using it with a message on the screen saying Android. Unfortunately, the process com.android.systemui has stopped.

The Android SystemUI isn’t responding error message may also read as “Unfortunately, SystemUI has stopped”.

Android SystemUI error can be very confusing as it leaves affected users with only one option, i.e., “OK”, as shown in the images above. If you click on “OK” you will continue to use your device smoothly, but only until the SystemUI isn’t responding error pops-up on your main screen again. You may restart your device, but the Android SystemUI has stopped the problem continues to annoy you until you find a permanent solution for it.

If you are also among the various users who see Android, unfortunately, the process com.android.systemui has stopped error, then do not worry. SystemUI isn’t responding. Error is not a serious issue and can be tackled easily by carefully examining the reasons behind the problem.

Looking for suitable solutions to fix Android SystemUI has stopped error? Then read on to find out all about Android SystemUI isn’t responding error and the most effective ways to fix it.

Part 1: Why Android SystemUI Has stopped happens?

Android device owners would agree that OS updates are very helpful as they fix the bug problem and improve the overall working of your device. However, sometimes these updates may be infected due to which they do not download and install properly. A corrupted OS update may cause Android; unfortunately, the process com.android.systemui has stopped error. All Android updates are directly designed around the Google App, and thus, the problem will persist until the Google App is also updated. Sometimes, even the Google App update may cause such a glitch if it is not successfully downloaded and installed.

Another reason for the Android SystemUI isn’t responding error to occur, maybe because of flashing a new ROM or due to improper firmware update installation. Even when you restore the backed up data from cloud or your Google Account, such Android, unfortunately, the process com.android.systemui has stopped error may show up.

It is not possible to say for sure which one of the above-mentioned reasons is causing your device to show Android SystemUI is not responding error. But what we can do is move on to fixing the Android SystemUI by following any one of the three methods given the following segments.

Part 2: How to fix “com.android.systemui has stopped” in one click

As we’ve learned that Android system UI isn’t responding issue is primarily because of the Android OS updates not installed properly or were corrupted. Hence, there comes the need for a powerful Android system repair tool that can help you rectify such annoying errors.

To serve the purpose, we would like to introduce, Dr.Fone - System Repair (Android) . It is one of its kind of applications and is highly recommended as it has a proven success rate to resolve almost all Android system issues.

It’s now time to understand how to fix Android ‘unfortunately, the process com.android.systemui has stopped’ or in simple words, Android system UI isn’t responding.

Note: Before we proceed to Android repair, please ensure to make a backup of all your data . This is because the Android repair process may wipe out all the data on your device to fix the Android OS issues.

Phase 1: Connect and prepare your Tecno Spark 20 Pro

Step 1 – Download the Dr.Fone toolkit over your PC. Install it and launch it over. Opt for the “System Repair” tab from the main screen and get your Tecno Spark 20 Pro connected to the PC.

Step 2 – You need to select “Android Repair” from the left panel and then hit the ‘Start’ button.

Step 3 – Next, you need to select the correct information about your device (i.e., brand, name, model, country/region, and carrier details). Check the warning down below and hit “Next”.

Phase 2: Boot Android in ‘Download’ mode to perform the repair.

Step 1 –You’re now required to boot your Android in Download mode. Here’s what you need to do to put your Android in DFU mode.

If your Android has a Home button:

Turn off your device. Hold down “Volume Down + Home + Power” buttons altogether for about 10seconds. Let go of the buttons afterward and hit the Volume Up to boot in download mode.

In case your Android has no Home button:

Turn off your device. Hold down “Volume Down + Bixby + Power” buttons altogether for about 10seconds. Let go of the buttons afterward and hit the Volume Up to boot in download mode.

Step 2 – Once done, hit “Next” to initiate the downloading of the firmware.

Step 3 – As soon as the download completes, the Android repair will automatically be started by the program.

Step 4 – In a just a matter of a few minutes, your Android system UI isn’t responding issue will be resolved.

Part 3: Uninstall Google updates to fix Android SystemUI issue

All Android SystemUI isn’t responding errors are circled the Google App as the Android platform is heavily dependent on it. If you have recently updated your Google App and the Android, unfortunately, the process com.android.systemui has stopped error keeps popping up at regular intervals, make sure you uninstall Google App updates as soon as possible.

Follow the steps given below to fix the Android SystemUI has stopped issue by rolling back the Google App updates:

Visit “Settings” and select “Apps” or “Application Manager”.
Now swipe to view “All” Apps.
From the list of Apps, select “Google App”.
Finally, tap on “Uninstall Updates” as shown hereunder.

Note: To prevent the Android SystemUI isn’t responding error to occur in the future, do not forget to change your Google Play Store settings to “Do Not Auto-Update Apps”.

Part 4: Wipe Cache partition to fix Android SystemUI error

Android, unfortunately, the process com.android.systemui has stopped error can also be fixed by clearing your cache partitions. These partitions are nothing but storage locations for your modem, kernels, system files, drivers, and built-in Apps data.

It is advisable to clear Cache portions regularly to keep your UI clean and free of glitches.

Android SystemUI isn’t responding error can be overcome by clearing the cache in recovery mode.

Different Android devices have different ways to put it in recovery mode. Refer to your device’s manual to enter the recovery mode screen on your device and then follow the steps given below to fix Android; unfortunately, the process com.android.systemui has stopped error by clearing the cache partition:

Once you are the recovery mode screen, you will see several options as shown in the screenshot.

Use the volume down key to scroll down and select ”Wipe cache partition” as shown below.

After the process is completed, select “Reboot System” which is the first option in the recovery mode screen.

This method will help you de-clutter your device and erase all the clogged up unwanted files. You may lose App related data too, but that is a small price to pay to fix the Android SystemUI isn’t responding error.

If the Android SystemUI has stopped the problem persists, there is only one way out. Read on to find out about it.

Part 5: Fix Android SystemUI error by factory reset

Factory Resetting your device to fix Android; unfortunately, the process com.android.systemui has stopped error is a desperate measure and should be the last thing to do on your list. Take this step only when the above mentored two techniques fail to work.

Also, make sure you take a back-up of all your data and contents stored in your Tecno Spark 20 Pro on the cloud, Google Account or an external memory device because once you perform a factory reset on your device, all media, contents, data and other files are wiped out, including your device settings.

Follow the steps given below to factory reset your device to solve the Android SystemUI isn’t responding problem:

Visit “Settings” by clicking the settings icon as shown below.

Now select “Backup and Reset”.

In this step, select “Factory data reset” and then “Reset Device”.
Finally, tap on “ERASE EVERYTHING” as shown below to Factory Reset your device.

After the factory reset process is completed, your device will automatically restart, and you will have to set it up once again.

The whole process of factory resetting your Tecno Spark 20 Pro might sound tedious, risky, and cumbersome, but it helps to fix the Android SystemUI has stopped error 9 out of 10 times. So, think carefully before using this remedy.

Android SystemUI isn’t responding or Android, unfortunately, the process com.android.systemui has stopped error is commonly seen by users on their devices. It is not a random error and is linked to either the software, Google App, cache partition, or data stored in the Tecno Spark 20 Pro device. It is fairly simple to deal with this issue as all you need to do is install or roll back your Android OS update, uninstall Google App updates, clear cache partition, or factory reset your device to clear all data, files, and settings stored in it. The methods listed and explained above are the best ways to fight the problem and to prevent it from troubling you in the future. These methods have been adopted by affected users all over the world who recommend them because they are safe and involve minimum risks as compared to other tools to solve the Android SystemUI has stopped error. So go ahead and try them now!

Fix Guide

How To Fix Part of the Touch Screen Not Working on Tecno Spark 20 Pro | Dr.fone