I believe it is a t300 it has Android 4.1 jellybean and I bought it 3 years ago. It goes on and off by itself From the onscreen Asus Insignia, then the pinwheel spinning , to the desktop, then after 15 seconds it turns off, then comes on again in 30 seconds) until it wears out the battery and You can't do anything with it other then turn the sound up and down and sometime lock it.(It kind of looks like it will only lock it after I turn the sound up or down but the touch screen does nothing.