In my lenovoA536 phone an malicious app that is alarm controller and calendar service is unknowingly installed and it is creating a problem I am not able to uninstall the app as it is automatically stored in in-built app so factory reset can remove it??

In my Lenovo A536 phone a malicious app that is alarm controller and calendar service is unknowingly installed and it is creating a problem.

I am not able to uninstall the app as it is automatically stored in in-built app.

So can Factory Reset remove it?

In my lenovoA536 phone an malicious app is unknowingly installed and it is creating a problem I am not able to uninstall the app as it is automatically stored in in-built app so factory reset can remove it??

In my lenovoA536 phone an malicious app that is alarm controller and calendar service is unknowingly installed and it is creating a problem I am not able to uninstall the app as it is automatically stored in in-built app so factory reset can remove it??