How to Refresh Gmail on Android
If you have turned off auto sync, you can manually refresh Gmail on Android phones and tablet, to check your new emails and unread messages in your ...
Continue
If you enable Stay Awake mode on HTC One, then the screen will never sleep if you plug it to a charger. To learn how to keep HTC One screen while charging, do as follows:
1. Open "Settings" app
2. Tap "Developer Options"
3. Mark "Stay Awake"
If you want to change the setting of display time out, see: How to Change Screen Time Out on HTC One