How to Enable Lock Screen Widgets on KitKat
If you already own an Android device running Android 4.4 KitKat (Let' say Nexus 5), you have noticed lock screen widgets are not enabled by default ...
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When you fist start using your HTC One M8, some quick tips are shown (Green pop-up balloons) to help you get the most of your device. To disable or review all tips again, do as follows:
1. Open Settings app and go to About.
2. Open Help.
3. To disable showing the tips, make sure to unmark the "Show all quick tips" option
4. If you want to see all the tips again, touch "Review all tips again" and confirm the process.