Ok so i found fix, i forgot to plug in palmrest so my touchpad and keyboard dont work, after plug it in everything works fine except trackpoint (that has the broken tape) but i dont use it anyway, thanks for quick reply, now i can sleep well and dont waste money 
Today i replace thermal paste, after this i saw that my keyboard and touchpad stop working, i saw that one tape from keyboard is torn but why touchpad stop working too? Maybe keyboard is not broken yet, can someone help me? Dell e7450 
Keyboard and touchpad stop working