There are too many running apps

End running apps.

1 of 7 steps Press the Application key.

2 of 7 steps Press the active applications icon.To end an application:

3 of 7 steps Press End next to the required application.To end all applications:

4 of 7 steps Press End all.

5 of 7 steps Press OK.

6 of 7 steps Press the Home key to return to the home screen.

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The display brightness is set too high

Set the display brightness.

1 of 5 steps Slide your finger down the display starting from the top edge of your phone.

2 of 5 steps Press Auto to turn the function on or off.If you turn off the function:

3 of 5 steps Press and drag the indicator next to the brightness icon right or left to set the display brightness.

4 of 5 steps Press the Home key to return to the home screen.

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GPS is turned on

Turn off GPS.

1 of 13 steps Slide your finger down the display starting from the top edge of your phone.

2 of 13 steps Press the settings icon.

3 of 13 steps Press Location.

4 of 13 steps Press the indicator next to "Location" to turn the function on or off.If you turn on the function:

5 of 13 steps Press Agree.

6 of 13 steps Press Mode.Proceed to step 3.If you turn off the function:Proceed to step 5.

7 of 13 steps Select one of the following options:Turn on satellite-based and network-based GPS, go to 3a.Turn on network-based GPS, go to 3b.Turn on satellite-based GPS, go to 3c.

8 of 13 steps Press High accuracy.

9 of 13 steps Press Power saving.

10 of 13 steps Press GPS only.

11 of 13 steps Press the Return key.

12 of 13 steps Press the Home key to return to the home screen.

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Mobile data is turned on

Turn off mobile data.

1 of 4 steps Slide two fingers down the display starting from the top edge of your phone.

2 of 4 steps Press Mobile data to turn the function on or off.

3 of 4 steps Press the Home key to return to the home screen.

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Wi-Fi is turned on

Turn off Wi-Fi.

1 of 4 steps Slide your finger down the display starting from the top edge of your phone.

2 of 4 steps Press Wi-Fi to turn the function on or off.

3 of 4 steps Press the Home key to return to the home screen.

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