Press and hold the power button for at least 10 seconds. Keep holding it until you see the Huawei logo appear on the screen. This force restart is the quickest way to clear a temporary software glitch that's freezing the touchscreen.
Before trying the fixes, map the problem with a touch screen tester in your browser. Dragging a finger across the grid reveals exactly which areas of the screen respond and which do not.
Key Points
- Force Restart Your Phone : This is the most effective first step for a frozen screen.
- Clean the Screen Thoroughly : Dirt, oil, or moisture can interfere with the touch sensors.
- Remove the Screen Protector or Case : A poorly fitted accessory might be the culprit.
- Boot into Safe Mode : This helps determine if a third-party app is causing the problem.
- Check for Software Updates : Huawei releases patches that can fix touchscreen bugs.
- Calibrate the Touchscreen : Use the built-in service menu to reset the touch sensitivity.
- Perform a Factory Reset : This erases all data, so back up first using Huawei's backup tools.
- Consider a Hardware Issue : Physical damage or a faulty display may require professional service.
I'd start with this one every time. It works for most unresponsive screen issues on the Pura 70 Pro, especially if the problem started after installing an app from a third-party store. The phone will reboot and, in most cases, the touchscreen will work normally again.
Clean the Screen and Your Hands
It sounds simple, but a dirty screen is a common cause of touch problems. Use a soft, lint-free cloth to wipe away any fingerprints, oil, or dust. Make sure your hands are completely dry, as moisture can confuse the capacitive touch sensors.
If you've used any lotions or hand sanitizer recently, wash and thoroughly dry your hands before trying the screen again. Sometimes the issue isn't the phone at all, but a layer of something on the screen that's interrupting your touch.
Remove Any Screen Protector or Case
A poorly applied tempered glass screen protector can sometimes create a small air gap or interfere with the touch sensitivity. Carefully remove the screen protector and test the bare screen.
Similarly, some bulky cases can press on the edges of the screen or lift the protector slightly. Take the case off and see if the touch response improves. If the screen works fine without the protector, you may need to apply a new one more carefully.
Boot Your Pura 70 Pro in Safe Mode
Safe Mode temporarily disables all apps you've installed from the AppGallery or sideloaded. To enter Safe Mode, press and hold the power button until the power off menu appears.
Then, tap and hold the "Power off" option on your screen. A prompt will appear asking if you want to reboot to Safe Mode. Tap "OK". If your screen is completely unresponsive and you can't get to this menu, you can try force restarting the phone and immediately holding the volume down button as it boots up.
If the touchscreen works perfectly in Safe Mode, you know a recently installed app is causing the conflict. You'll need to uninstall apps one by one to find the culprit, paying special attention to any from outside the official Huawei AppGallery.
Check for an EMUI Software Update
Huawei releases updates for EMUI that often include bug fixes for system performance, including touchscreen responsiveness. Connect to Wi-Fi and go to Settings > System & updates > Software update.
Tap "Check for updates". If an update is available, download and install it. It's best to do this while your phone is charging, as the process can take a few minutes. I've seen updates resolve touchscreen lag and dead zones on other Huawei models.
Calibrate the Touchscreen
EMUI has a hidden service menu for hardware diagnostics, including touchscreen calibration. Open your phone dialer and enter *#*#2846579#*#*. This will open the ProjectMenu.
Navigate to ProjectMenu > Single Item Test > TP Test. Follow the on-screen instructions, which will involve tracing patterns or tapping dots across the entire screen. This process can reset the touchscreen's calibration data.
Once the test is complete, exit the menu and restart your phone. This can be particularly helpful if only a specific area of the screen feels off.
Perform a Factory Reset
This will erase everything on your phone, so it's a last resort. Before you begin, ensure you've backed up your data using Huawei's built-in backup to an SD card or your computer. With the phone powered on, go to Settings > System & updates > Reset > Factory data reset.
Tap "Reset phone" and enter your lock screen password if prompted. Confirm your choice. The phone will erase all data and reboot with factory settings. If a deep software corruption was causing the touch issue, this should clear it.
Look for Signs of Physical Damage
If all software fixes fail, the problem is likely hardware. Inspect the screen closely for any new cracks, even hairline ones, or spots where the display shows discoloration or lines. These are clear indicators of physical damage.
Think about whether the phone has been dropped, exposed to moisture, or subjected to extreme pressure recently. Since the Pura 70 Pro has a curved display, impacts on the edges can sometimes damage the touch digitizer underneath the glass. In this case, the display assembly would likely need to be replaced by a professional technician.