NO DISPALY AFTER FALL FRON 3FT. HEIGHT

Put it in a Tupperware container with rice in it for a week. Remove the battery if you can.

Maybe the screen is damaged due to the fall.Take it to a repair center.

A triangle with an ! in it usually means that it's operating system has been rooted. Is it second hand if so the previous owner has been playing around with it and the warranty is void.It can be wiped and reinstalled, but you need to know what you are doing, there are instructions and videos on u tube showing how it's done.

You probably broke the screen or a cable popped out. I made a video on how I replaced the screen in one.

you might have a deffective battery, which is a very common problem to tabs... especially if your using a generic tablet....

my t tablet fell on my screen now its showing the screen a little

The blue screen is known as the screen of death for a reason. You can try getting it fixed but most likely you'll need to replace it.

You can damage the battery but it is very rare to actually do that. What you need to do is plug it in to the wall charger and leave it alone over night. At that point it should be just fine. it will actually start to show some signs of life after a few hours but don't be tempted to do anything wih it. it will first show a charge light or something after maybe 40 minutes if it is a faster charger.
If it shows no life the next day then you can try charging again but at this point you may hae a problem that requires either a battery replacement or warrenty. The battery has a microcontroller on it and when the battey gets real low they do not behave that well and typically you get the stone dead brick behaviour. And most people do not let it charge long enough to get it working. It is possible that there are other problems but those are usually moore serious and require replacement of the unit. The battery can be replaced but requires the etire case to be disassembled.
So charge it then check your warrenty and it may need serious repairs or to be replaced. If it is out of warrenty then you need to be careful on the cost verses replaceemn

In the upper left hand corner of your Literati there dispalys a battery looking icon. In this icon will display a cable plug once you connect the charging cable.

The hopeless literati guru

Could fall out (if your laptop is a little 'aged' and missing the securing clips!)

It's likely that your sudden loss of power has caused a operating system corruption causing it to not boot anymore.

If the laptop isn't powering on at all it's likely to be a hardware problem. Try leaving it on charge for an hour or so un-touched, or take it to a repair-man.

If you can at least power it on my first suggestion would be to try loading Windows in Safe Mode (tap the F8 key just before the Windows logo displays). Try and back-up any important files and restore your computer using any disks the manufactor supplied when you bought it.