Hello,
we apologize for this Samsung specific issue. On Samsung devices we can’t open correct Settings screen.
Pls,
- Go to the Settings → General → Security → Apps with access to usage data
- Tap the “Avast Mobile Security” checkbox
→ “Allow access” pop-up is shown
- Tap “OK”
→ “Avast Mobile Security” checkbox is checked and you can go to the Avast Mobile Security app and set App Locking