What should I do if the clock of Samsung note 4 becomes smaller when receiving text messages on the lock screen?

You can perform the following operations:

1. Try restarting the phone.

2. Touch the mobile application-Settings-Application Manager-Menu key-Reset Application Preferences-Reset Application Try.

3. After backing up the phone data, try restoring the phone to factory settings.

4. If the problem persists, it is recommended to bring the repair card, purchase invoice and mobile phone to the nearest Samsung mobile phone customer service to have the phone tested.