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  1. Thread Author  Thread Author    #1  

    Default Issues charging a USB device from keyboard

    I have the keyboard attachment to the tf300, and I can't seem to figure out how to charge my phone via USB without having the tablet screen on. If I turn the tablet screen off, either by pressing the power button or closing the tablet/keyboard, the phone stops charging. Is there a work around to this that I just haven't thought of? Thanks in advance.
  2. #2  
    GMJeff's Avatar

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    Default Re: Issues charging a USB device from keyboard

    It usually means that the usb ports are turning off when the screen shuts off because the device is going into a sleep state.

    There may be a setting on the device that allows for the usb to stay awake, but I am sure the manufacturer meant it that way to save battery life.

    Sent from my SAMSUNG-SGH-I317 using Android Central Forums
  3. #3  

    Default Re: Issues charging a USB device from keyboard

    Quote Originally Posted by Jevangil View Post
    It usually means that the usb ports are turning off when the screen shuts off because the device is going into a sleep state.

    There may be a setting on the device that allows for the usb to stay awake, but I am sure the manufacturer meant it that way to save battery life.

    Sent from my SAMSUNG-SGH-I317 using Android Central Forums
    He's right. If you desperately need to charge your phone, change a few settings:
    Display always on
    Power saving mode
    Brightness lowest possible.
    Doing that I was able to get a decent charge to my Gnex before the tablet died. If you find another solution, feel free to share!

    Sent from my Galaxy Nexus using Tapatalk 2

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