Custom Image Xbox One Profile. Then connect it to xbox one and leave. Press the xbox button on your controller to open the guide.
Install xbox beta app on your phone or laptop. Insert the usb drive into the xbox one and open the media player app. Select customize profile change gamerpic.
When it s displayed press the menu button on your controller and select set as background.
Move the joystick up to the profile selection at the top. First copy an image you want to use as gamerpic to it. Select upload a custom image and choose one to use from your connected device or onedrive. Xbox one supports external drive and usb drives as well.