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    Hi guys

    Problem: my lumia 800 is dead (not sure its hardware or software problem).

    Background: About a month or two ago, there were some battery issues.
    e.g 1) sometime battery shows 100% for hours then all of sudden battery saver mode appear and battery zero, or some time battery drain too fast and % decrease gradually.
    2) mobile heat up too much when using 3G or playing video files and battery drain.

    last week i turned on 3G and battery drained too quickly and display off.

    So i thought battery is almost dead

    Things I have tried:

    1) Tried soft and hard reset with combination keys, but no display
    2) went to local repair shop, he said its front panel display issue. (but i dont think so)
    3) I tried to connect it to computer with and without display/touch panel, there Qualcom device appeared in Device Manager but i was unable to install drivers.
    4) Removed battery, Removed display/touch panel. connect it to computer, there was sound from computer and vibrate on mobile. but device was not turned on.
    5) I purchased new battery, placed battery, but now No Qualcom device, but still there is sound on computer and vibrate on phone.but device was not turned on.

    Current Scenario: My Lumia 800 just vibrate when i plug in charger or connect it to PC and sound there on PC, but now nothing more at mobile or PC.

    Query: Is My lumia Dead ? Software or Hardware ?
    09-05-2015 02:41 PM

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