1. AC Question's Avatar
    I have had this phone for 18 months and have only had this problem once before. Last time I plugged it in, unplugged it, left it for a few hours, and eventually it began responding. This time it's been going on for about 48 hours and no matter what the screen stays black and the charging light gives no indication when the device is plugged in. When I tried plugging the phone into my tablet, the tablet acknowledged that there was a device attached, but could not recognize it. I tried holding down the volume down key and the power key simultaneously, I tried holding down the volume up key and power key simultaneously, and I tried just holding down the power key but to no avail. Any insight I could get on this problem would be much appreciated.
    02-19-2015 04:14 PM
  2. B. Diddy's Avatar
    Welcome to Android Central! That doesn't sound good. You might have to bring it to a repair shop to figure out if the problem is with the power button, the battery, or the motherboard.
    02-19-2015 11:14 PM
  3. Cyanogenmod1's Avatar
    Try taking out the battery.
    02-19-2015 11:34 PM
  4. Rukbat's Avatar
    The battery is non-removable.

    The fact that the tab recognizes a device means that there's power in the One's battery, and the data pins on the microUSB connector are connected. One oor both of the power pins may not be connected, so as B. Diddy said, it has to go to the shop.
    B. Diddy likes this.
    02-20-2015 12:14 AM
  5. Sophos's Avatar
    Try holding both the volume up AND down simultaneously while pressing the power button. Hold all three for at least 20 seconds. I read this worked for someone else having a similar situation.

    Good luck

    I play with my food
    02-20-2015 12:28 AM

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