Restore original settings
If your device is not working properly, you can reset some settings to their original values.
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End all calls and connections.
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Select Menu > Settings and Rest. fact. sett. > Settings only .
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Enter the security code.
This does not affect documents or files stored on your device.
After restoring the original settings, your device switches off and then on again. This may take longer than usual.
Related topics
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See Format a memory card .
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See Lock your device .