The tablet got wet - Nabi 2

Links below tell how to save from water spill.
To show your appreciation press the helpful button and follow me on fixya for more tips and info.

How To Save Wet Cell Phone Or Tablet

The secret to saving wet phone or tablet

How To Dry Out and Hopefully Save Wet Phones and Tablets Apartment Therapy...

How To Fix Wet Cell Phones And Tablets

My kindle tablet and my fire 10 tablet have water damage Help!

Wipe dry best you can. dry with hair dryer for 10 min. do not over heat, then place in a bag of rice for a couple days. good luck.
check links below, PRESS THE HELPFUL BUTTON

How To Save Wet Cell Phone Or Tablet

The secret to saving wet phone or tablet

How To Dry Out and Hopefully Save Wet Phones and Tablets Apartment Therapy...

Secret Tips How to Save Wet Phone or Tablet

If the tablet got wet and you tried to turn it on wet, it won't turn on ever. It's done...
Don't lose hope, take it to some repair service but don't have much expectations.
For the future, remember NEVER turn on a wet electronic device

just wet - no problems. But if you got it drowned then that's a problem: the cheapest way is to replace it.
For wet device: put it into closed box (remove battery first) with a lot of salt around (keep the salt from the device though) for a day.

what did you clean them with ? water?, bad move. you should only clean your electronics with acceptable electronic cleaning solutions,
or Rubbing Alcohol on a lint free wipe very lightly saturated then swing the cloth around in the air for a few second to make sure its not dripping wet, but very lightly damp. then make sure all units are off with no current flowing through. also make sure that you DO NOT turn them on straight after let them dry completely. ( when applied to items should see a streaking not an overall wetness.(if overall wet, you've used to much) drying time is based on wetness.) Use hair dryer if necessary.
Good Luck, try the dryer on the headphones. including the tablet plug in area. you might have gotten water in it.too!

Did you try the bag of rice trick?

Put it in a large bowl. Then add rice. Rice has a habit of soaking up water. After a few days try your luck and turn it on.

Lines on the screen indicate motherboard issues. You should be able to use it for a while longer, but the motherboard will likely fail. You could attempt trying to get it repaired if it is under warranty, but as it is water damage it might not be covered.

It could also be the logic board. Usually, there are weep / drainage holes in the bottom of the laptop. See if there's any traces of moisture there, and you'll know if it got wet or not.

Sounds like it could have been wet. You could try replacing the keyboard.