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I have an LG-E400f and when I make a call - the screen goes black and the options for keypad, loud speaker etc are not available

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  • 18 Answers

You need to change your phone Software

Posted on Dec 03, 2012

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Posted on Jan 02, 2017

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SOURCE: LG chocolate touch screen goes black once I call

I had the same, or a very similar problem. What happened with mine, was the sensor on the upper right corner of the phone was getting blocked. It is supposed to sense when you have the phone next to your face and then it will darken the screen, Mine had plastic that was obstructing it. Hope this helps.

Posted on May 16, 2010

  • 1 Answer

SOURCE: LG-E400f Users Manual

they should have the manual on lg" website for download

Posted on Sep 30, 2012

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ur defalt phones codes is 12345 or 00000 u can use it
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I had the same, or a very similar problem. What happened with mine, was the sensor on the upper right corner of the phone was getting blocked. It is supposed to sense when you have the phone next to your face and then it will darken the screen, Mine had plastic that was obstructing it. Hope this helps.

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