My J1 keeps switching off the screen within a second or something if my finger isn't on it and I can't find a way to control that.

And it won't download apps saying there's no space but there 12 G free on the SD card and I can't find the place to tell it to use that.

Can anyone help or direct me to where I can find some help?


See More: How To Fix A J1 With Screen And Space Problems?