You can go in.
EMUI 5. 1: Settings? & gt security and privacy > security > device manager
EMUI 8。 X/9.0: Settings? & gt security and privacy > more security settings > device manager
This problem can be solved by deleting the activated device manager software.
note:
If deactivating the above two applications does not solve the problem, please try deactivating the remaining activated applications to solve the problem.
Deactivating other activated applications will not affect the functionality of the application, but will enable you to reactivate it the next time you start the application.