Why is nothing working

This happened with mine before n I've never been able to get it back on know matter what I tried, nothing worked. So unfortunately it's done for sorry to say. U can try to factory resetting it but if that doesn't work there's nothing else that will. To factory reset hold the power and the volume down button at the same time and if anything happens or the screen reboots it may have worked. U have nothing to lose.

Try charging for a long time, 12 hours or more, and then turn it on by holding the power button down for maybe 45 seconds or so.

Buy a vga, dvi or hdmi cable depending on what your pc uses and plug it into a different monitor or tv. If this works, you can also purchase a wireless board and mouse and have it working on the tv

You need a new touch-screen.

The screen is broke and needs to be replaced. ur lookin at about hundred bucks just for the screen. replace is better than to fix

If you are having this problem with the tablet, but the charger works fine with the cellphone, then mKe sure that you are using the right charger for the tablet, or it could be that the charging port in the tablet is damage, or the battery needs to be replace.

Try recalbrating the screen in the main settings or go to a professional to get it fixed

hold the power button down for 10-15 seconds to force a power off. When turning back on, hold the power button down until you either feel it vibrate or something comes up on the screen.

Press and hold the power button for fifteen seconds or so. Does it turn off then? If so, press and hold the power button for a second or two. Does it start to reboot then? Does it work properly now?

It looks like your tablet isn't calibrated correctly. Go to the settings and look for touch screen calibration.