That's weird. After reboot, it gets stuck on the same percentage? Did you try to reinstall AMS? And why is it all red at the top?
Hi Filip,
Reinstall AMS and now all of the problems are fixed
(including uninstall protection and app locking issue).
But the two talked above features aren't seem stable. The first time when uninstall or open an (locked) app (in order to test uninstall protection and app locking), it shows avast PIN, but after entered the correct PIN and try with another app, it doesn't show the PIN anymore. It takes sometimes to show PIN at the next testing time.
Regarding the red color at the top, it is the theme of my phone. As I know, the top of Google Play app is the same color. So I think it's okay ^^
I feel more comfortable now after a long time worried about issues with my AMS. By the way thank you Filip for your help.