Question about Nokia N70 Cellular Phone

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My n70 is just vibrating and not ringing and is

My n70 is just vibrating and not ringing and is just showing white screen but i can answer call

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Anonymous

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The LCD display connector is either loose or the LCD is faulty, the speaker contacts are loose or the speaker is faulty.. Other than that, you have to have it checked by a qualified technician. Follow the procedures below to disassemble the phone and check the LCD, connectors and speaker.

  1. Wear a pair of electro-static discharge (ESD) protective gloves.
  2. Unlock and remove the battery cover.
  3. Unlock the clips of the front cover beginning at the bottom by prying the latches with your fingernail or a prying tool one at a time.
  4. Carefully remove the front cover.
  5. Protect the display with a plastic film.
  6. Remove the 6 screws using a T6 screwdriver.
  7. Swing the user interface (UI) frame assembly upwards from the bottom. Bear in mind that the flex connector is still connected.
  8. Disconnect the flex connector carefully by prying it.
  9. Clean the connectors using a soft-bristle toothbrush with a lacquer thinner.
  10. Remove the engine board and place it in a cushioned non-conducting tray.
  11. Clean the speaker terminals and contact pads on the engine board using a cotton bud with lacquer thinner or alcohol.
  12. Lift up the speaker terminals to ensure it makes contact with the contact pads on the engine board.
  13. Check the resistance of the speaker using a multimeter. The resistance reading should be 20-30 ohms, otherwise replace speaker.
  14. Put back the engine board.
  15. Reconnect the flex connector firmly and reassemble the UI frame assembly.
  16. Remove the protective plastic film and reinstall the front cover.
  17. Insert the battery and turn on the phone.
  18. There should be a display and tone when the hands appear on screen. Otherwise, have your phone checked by a qualified technician.
Check this out for the complete disassembly:


Posted on Nov 24, 2009

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it depends if its a screen problem or a virus problem.

Those are one of the things that can make a phone screen to be white.

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In the case of screen problem, loose the phone first and check it the screen is well fixed. If well fixed, then it means you have to buy another screen.

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