HTC Sprint User Manual page 258

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Turn GPS on only when a precise location is needed. To prevent some apps from
using GPS in the background, clear the Device sensors option in Settings > Location
> Mode. Select it only when you need your precise location while using navigation or
location-based apps. For more information on location services, see
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If the Sleep mode option in Settings > Power is enabled, at low peak times, your phone
will turn off the data connection after the screen has been off for 15 minutes and there's
no network activity (no downloads, streaming, or data usage). The data connection
resumes when you switch the screen back on.
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Turn on Airplane mode when you don't need any wireless connections and you don't
want to receive calls or messages. For details, see
Manage Your Display
Lowering the brightness, letting the display sleep when not in use, and keeping it simple helps
save battery power.
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Use automatic brightness (the default), or manually lower the brightness.
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Set the screen timeout to a shorter time.
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Don't use a live wallpaper for your Home screen. Animation effects are nice to show off
to other people but they drain your battery. Changing your wallpaper to a plain, black
background can also help a little. The less color is displayed, the less battery is used.
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Set the Web browser to auto dim the screen while webpages load. Open the Internet
app, and then touch > Settings > Accessibility > Dim screen during page loading.
For more details, see
Manage Your Apps
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Install the latest software and application updates. Updates sometimes include battery
performance improvements.
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Uninstall or disable apps that you never use.
Many apps run processes or sync data in the background even when you're not using them. If
there are apps that you don't need anymore, uninstall them. See
If an app came preloaded and can't be uninstalled, disabling the app can still prevent it from
continuously running or syncing data. In Settings > Apps, swipe to the ALL tab, touch the app,
and then touch Disable.
Settings
Display & Gestures Settings.
Location
Airplane Mode.
Uninstall Third-party
Settings.
Apps.
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