iPhone 4 Portable Genius

iPhone 4 Portable Genius

4.11 - 1251 ratings - Source

In the Silent section, the Vibrate setting determines whether iPhone vibrates when the phone is in silent mode. Vibrating is a good ... To lockthe ringer volume, tapthe Change with Buttons switch to the Off position. ... Unfortunately, keeping the screen bright enough to read comfortably extracts a heavy cost in battery power.

Title:iPhone 4 Portable Genius
Author:Paul McFedries
Publisher:John Wiley & Sons - 2011-03-16


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