Signature anomaly is caused by inconsistent signatures caused by repeated installation of software, which needs to be uninstalled and reinstalled. The operation method is as follows:

1. First, press and hold the icon of the software, and then click the cross in the upper left corner of the icon to uninstall the software.

2. After uninstalling, open the formal application market and search for the software name.

3. Next, download the software again and install it.

4. Finally, click the icon of the software again to enter the software, and there will be no abnormal signature problem.