Why does the Nokis 4.2 black out for some time, say - 5 secs when using apps like Twitter or Whatsapp?what might be the cause?
That sounds strange! It could be all sorts of reasons, but it's probably either an Android misconfiguration or some other app you've installed which is interfering with display. You can try these steps to try and isolate and remove the problem:
Great I'll try the second option
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