A：1. Impact of non-standard chargers: Using non-standard chargers may interfere with the touchscreen, causing it to malfunction and jump around. It is recommended to use the standard charger.
2. Environmental factors: In high-humidity environments (such as bathrooms), abnormal capacitive reactions of the touchscreen may cause screen jumping and other problems. It is recommended to avoid use in humid or high-temperature environments.
3. If your device supports glove mode, please check if it is enabled. In this mode, the touchscreen sensitivity will be greatly increased, which may cause the screen to become overly sensitive, resulting in random jumping. It is recommended to disable glove mode when using the device without gloves.
4. Ensure that both the phone software and third-party applications are updated to the latest version. Some third-party applications have design flaws that may cause the touchscreen to become insensitive or jump around.
5. After ruling out environmental and software factors, if the problem is confirmed to be a touchscreen malfunction, repair or replacement is necessary.