Question about Sony Ericsson Cyber-shot C902 Cellular Phone

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Frequent shutdown of se c902 mobile

I recently bought a SE c902 mobile and it worked perfectly for about a month or two. I update its firmware regularly but even then it frequently shuts down. plz help me.

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  • harrrdcorex Nov 30, 2008

    I have exactly the same problem, even when I'm not actually doing anything on the phone it'll turn itself off and back on again.
    It's so so irritating, especially when it was fine for the first two months or so!

  • sadj007 Dec 01, 2008

    I have the same problem and I can use my memory phone card since a made un SW update from SE webpage.

  • alexroles Dec 03, 2008

    Same problem, it just switches itself off and on again. It worked fine before and ive had it for about 1 month. Really annoying coz i dunno what it is. Plz can someone help.

  • kaseii Jan 01, 2009

    same thing with my c902 as well

  • Anonymous Feb 11, 2009

    Same problem and after updated software. I don't know what to say, except blame on to Sony Ericsson company and welcome Nokia Inc. !!!

  • Anonymous Feb 18, 2009

    Same problem after updating firmware.

    Not using bluetooth, headset or car kits.

    A solution for this long termed problem would be nice.

  • debbiecallan May 11, 2010

    is it when you are using the phone with a bluetooth device?? headset or car kit??

    Sometimes compatibility problems occur between devices...



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The copper contacts connecting to the battery may be after getting jammed in. Use a paperclip to just pull out the contacts after removing the battery and this will help the contacts touch off the battery causing no re-boots. I use this technique whenever someone has this problem and around 90% of the time, it works

Posted on Jun 04, 2009


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I cannot update my firmware. when i try to do it and error message prompts on my screen saying the software is modified and cannot be updated

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I would recommend that you upgrade the firmware on the device..Once the firmware is update you shouldnt have any problems..To update the firmware follow the link below
Please rate accordingly
Thank you

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Sounds like a silly question but did you update the phone via the SE suite or via a flash updater? there may be problems if you left your sim in, if you flashed the phone. If you updated via the SE suite then take a look at the troubleshooting guide and moan to SE. As long as you haven't voided the warrenty on your phone there should be no problem with SE or your service provider repairing your phone for free. :)

Hope this helps. One last thing to try is to out another sim in the phone and see if it works. With any other provider except O2 you will need to use a sim the same as yours.

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