1, use mobile phone when charging.
The mobile phone charger will generate a certain electromagnetic field when it works, and the screen will be automatically calibrated every time it is charged. In the process of calibration, there will be interference from electromagnetic environment and a certain probability of "false alarm point". In this case, the touch screen is insensitive and ineffective. It is not recommended that you use your mobile phone while charging.
2. When operating a single software, the touch screen fails.
If your mobile phone is used normally every day, the touch screen function will be abnormal only when a specific program is opened. There may be the following reasons.
Enter Settings-Application Management, find the software, clear the data and cache, and clear the cached data generated by the software in the past.
If the software version is too low or there are compatibility problems with the mobile phone, you can uninstall the software and download it again in the "software store".
3. Irregular touch screen failure
If the touch screen of your mobile phone fails irregularly during use, there may be the following reasons.
The screen is covered with film, wet or liquid and water. It is recommended to cancel the filming attempt and clean the screen.
When the mobile phone is put in the pocket, friction produces static electricity, which leads to touch failure. I suggest you try again after a while.
Due to system reasons, you can download the firmware package to the mobile phone reloading system (search for "brush machine" for detailed steps).
After eliminating the above situation, you can take the mobile phone to the OPPO service center for inspection and maintenance.