Your Android device still requires a password to unlock even after disabling the Pre-installation Scan.
This happens because the Pre-installation Scan requires you to create a password before it can be enabled. However, the password will not be removed if the Pre-installation Scan is disabled or your Mobile Security for Android program is uninstalled.
Fix Trend Micro App Credentials
- Remove Trend Micro Inc Root CA
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- From your Android device, go to Settings.
- Tap Security.
- Tap Trusted Credentials.
- Tap User.
- Tap Trend Micro Inc. Root CA.
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Tap Remove.
You need to scroll down to find the Remove button.
You can now remove the password for your lockscreen. If the problem persists, proceed to the next step.
- Clear credentials
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- From your Android device, go to Settings.
- Tap Security.
- Tap Clear Credentials.
- A warning message will appear, read it, then tap OK. You can now remove the password for your lockscreen.