Random Letter pressing?

If This is happening to you that means you spilled a liquid on it didint you?
If food or liquid has ever been spilled into the keyboard, it can cause the keys to stick and be repeated. Spilled liquid can also cause the circuit board in the keyboard to short out, causing keys to be repeated. It can be worth trying to use canned air and blowing out any food material and dry out any spilled liquid, to see if that fixes the repeating keys issue. However, food and some liquids may leave behind a sticky residue, which could cause they keys to continue sticking and repeating. Sticking Keys - As keyboards get used and wear down over time, some of the keys can begin to stick. Sometimes it's a physical sticking, where the keys don't release back to their normal position after you press them. This can cause the keyboard to repeat those keys. Other times the keys may release back to their normal position, but the circuit board in the keyboard may be experiencing a sort of sticking as well, causing the keys to be repeated. Try To see Also if its your connection if its bad. I hope this helped.