How to setup Face Unlock on Android
Activate Face Unlock through the following path:
Settings > Security > Screen Lock > Face Unlock.
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When your Android phone is in your pocket or bags, the Ringer sound can volume up automatically. Learn how to increase Ringer Volume on Samsung Galaxy S4, S3 and other Samsung devices. (This instruction is based on Galaxy S4 new menu style)
1.Go to Setting
2.Go to My Device tab
3.Open “Call”
4.Under the “Ringtone and sound settings” enable “Increase Volume in pocket”
5.The ringtone volume increases when the device is in a pocket or a bag
Read More Galaxy S4 Tips and Tricks