Probable causes and solutions:
1. Impact of non-standard charger: When a non-standard charger is used for charging, if the mobile phone is changed from charging to charging, the abnormal charging may cause interference to the touchscreen and cause the response jumper of the touchscreen. It is recommended that you remove the charger and try again.
2. Impact on the environment: In a high-humidity environment (for example, a bathroom), due to the abnormal response to the touchscreen capacitor, it may cause the touchscreen to jump. It is recommended that you try again in a normal environment.
3. Gloves mode (supported by some mobile phones) is enabled: In this mode, the touchscreen sensitivity is greatly improved. If you use gloves without using gloves, you may have the illusion of jumping the screen. It is recommended that you disable this mode in normal cases.
4. Compatibility of third-party applications: Ensure that the mobile phone software and third-party applications are updated to the latest versions. Some third-party applications may have unsensitive touchscreens. You can refer to the comments of the application market.
5. If you still have any problem, please back up personal data and take the equipment purchase voucher to ZTE after-sales service office for repair.