1. AC Question's Avatar
    LG G4 Model LS991

    With the Phone plugged in to a power source

    When the battery is removed I see the indicator of a battery outline in white with a blinking red question mark; remainder of the screen is lit and displaying black background color

    With the battery inserted the computer completely blanks and the screen light turns off.

    When the phone is not connected to a cable then it does not matter if the battery is inserted or not the screen does not power on.

    The phone is unresponsive to a USB Cable plugged into the computer; I.e. I can't access it via computer

    The phone is unresponsive to pressing any buttons; including holding the power button in for 2 minutes with the phone powered or unpowered

    any thoughts about how to get the phone working so I can retreive content off the phone and back it up?

    12-01-2015 10:53 PM
  2. anon(782252)'s Avatar
    Since you have a Sprint version, it sounds like maybe the motherboard completely failed. A Sprint tech may be able to retrieve data off the device.
    12-02-2015 07:17 PM
  3. B. Diddy's Avatar
    Welcome to Android Central! Have you also tried a new or different battery, in case that battery is defective?
    12-02-2015 07:45 PM

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