Yay! You got the beta 7 update, good for you! What's next?? Try clearing the cache partition. It'll increase the chances of you having a better software experience. Here's how.
1. Turn off the device.
2. Press and hold the volume up key and the power button.
3. When the Android logo displays, release both keys.
4. An 'Installing system update' message may be shown briefly before the Android Recovery menu options appear.
5. Press the volume down key several times to highlight the wipe cache partition.
6. Press the power button to select.
7. Press the volume down key to highlight Yes, then press the power button to select.
8. When the process is complete, the Reboot system is now highlighted.
