Some keys doesn't work

Rupesh_1703

Prominent
Jul 16, 2017
1
0
510
Some keys in my laptop is showing weird behavior..
Sometimes they work and some time they doesn't work..
Everything works fine with soft keyboard and external keyboard.

Maybe this can be the power issue?

Things I have tried:
1. Resetting laptop
2. Cleaned keys by blower and by removing them
3. Removed battery and pressed power button for 60 seconds.

All above things didn't work.