problem:laptop not function.if join adapter .light is gone.notice the motherboard.mainvoltage track is getting short circuit.
keypad particular keys are not working.no interception while working its smooth.
battery bulge .touchpad not function properly.no battery backup for usage.its troubling without connect adapter.
solution
finding the mainvoltage track and remove the capacitors voltage divider section.its clear.no blocking voltages.
replacing the new keypad by soldering and fix even and tighter.its hard to damage.
fix new battery and charging well.no problems.