inspiron 3541 few keys not working in the keyboard
I am using dell inspiron 3541, and the OS is windows 7 professional . Sine last two days suddenly few keys are stopped working, I tried basic things like removed battery and hold few secs of power button, but nothing gives result. The following keys are not working... 1 2 3 4___ 7 8 9 0..also few letters . Tab ctrl fn keys. Please need solution. Note; Also i had replaced new key board sine last 6 months which was under warranty.