Why will the keypad on my Samsung Galaxy Centura not stay on when trying to get voicemail?

Adjust the delay time before the screen automatically turns off. Go to SettingsDisplay. Tap on Sleep and adjust the time. You can choose from: 15 seconds, 30 seconds, 1 minute, 2 minutes, 5 minutes, 10 minutes, and 30 minutes

Not the answer you were looking for?