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Apple iPhone 4S

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iOS is the operating system software installed on your iPhone. To find out which version you have: Tap Settings, Tap General, Tap About, and view the version number.

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My mobile phone's battery life is short

This troubleshooting guide will take you through a number of possible causes to help you find a solution to your problem.

We found 6 possible causes:

Wi-Fi is turned on
Mobile data is turned on
GPS is turned on
The display brightness is set too high
You have running applications
Bluetooth is turned on

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