Question about Samsung D840 Cellular Phone

1 Answer

My phone won't work properly.

All the keys on my samsung D840 are not working except the numbers so therefore i cannot get onto the menu or contact list, is their anything i can do to fix this? or will i have to take it to a repair shop?

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  • 4 more comments 
  • madonnajones Nov 12, 2007

    The button to switch the phone on does not work properly and even if it works there is no display on the screen.

  • jenniwren Nov 27, 2007

    The buttons on my phone keep "freezing" - either the "up" "down" and "enter" button; or the"left arrow" and green "call" button - extremely frustrating!! Seems to be software problem - as resolves, if you leave it for a while, then recurs. But annoying when trying to acces mesages or make a quick call. Any solutions gratefully received!

  • j12356 Feb 09, 2008

    My Samsung D840 will not activate to Bluetooth gives coming up with Bluetooth failed.

    Bluetooth is stuck in the OFF states.

    Keep on press the activation button or my my devices and bluetooth still keeps on failing

  • Anonymous May 19, 2008

    hi i dropped my phone in the sink whilst the tap was running so it didnt really get soaked but most of the keys have stopped working . i can still get calls and messages but i cant read them ! can anyone help please ? its a samsung SGH-L760

  • Anonymous May 19, 2008

    hi i have a samsung SGH-L760 and i have stupidly knocked it into the sink whilst the tap was running it didnt get soaked but it got wet enough to stop the buttons from working i can still accept calls and receive messages i just cant read them ! can anyone help ?

  • Anonymous Jun 11, 2008

    my phone has frozen. can turn it on then nothing. have to remove battery to turn off

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  • 18 Answers

Your need to take it to the repair shop. what happen for this to your phone? did you drop it?

Posted on Sep 17, 2007

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The SIM card may not be making proper contact in the cell phone.
Remove the SIM card and clean the SIM card contacts with methylated spirits, insert the SIM card back.

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The function keys dont work but the number keys do is this an easy repair thanks samsung d 840


there could be several solution to your problem
1. try to open your phone and clean it with a old toothbrush make sure nothing is blocking the keys

2. Donwload the pc maneger for this phone and look of you can fix the software if otherwise reset it

3. if this dont works i recommend to go to a phone shop and give it to them or maby you have still warenty on it but good luck

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jd014e9445 - the power button needs to be resolder back on or replace....so take it to a mobile service center to have it rectify.


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The only thing i can think is that somehow in your connection settings it got switched to the incorrect bands

if your in europe change to 900/1800
if north america change it to 850/1900

otherwise you will need to seek a professional to flash your phone for you

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