I have a problem with my Acer E5 575G laptop shutting down unexpectedly?

I bought this laptop 1 years ago. Laptop used to shutdown unexpectedly after it reach to battery 70% . I reset, uninstalled battery driver and many more also followed all the answers on acer community. Then after I contact to acer service center and they said to replace battery. I replaced battery but the problem didn't solved. Now laptop don't run on battery power. Its shows 30% battery power and doesn't charge and don't start on battery I have to AC adapter to use laptop. Laptop is performing so nice, it don't have problem with board. What might be other possible problem? I need urgent help please!

Accepted answers

JackE

Sorry, if a full erase-everything factory ALT+F10 cold boot reset failed to fix the problem, it strongly suggests a mainboard hardware failure. So what has your local technician done to this machine to come to his conclusion that it is NOT a hardware issue? Jack E/NJ

All comments

JackE

Turn off the machine. Unplug charger. When you gently insert and withdraw a paperclip into the pinhole, does it feel like it's a spring-loaded switch? If yes, then gently insert and withdraw the paperclip in a 'down & up motion' several times to try to clean the switch contacts. Then plug in the charger for about an hour --- make sure the battery LED is steady on yellow or blue. Then unplug the charger again. Try to turn on the machine without the charger again. Jack E/NJ

gsduwadi

<<Turn off the machine. Unplug charger. When you gently insert and withdraw a paperclip into the pinhole, does it feel like it's a spring-loaded switch?>>
YES it feels like spring-loaded.
Done multiple times up and down.
I plug the charger, LED lights about 2 minutes and goes away.

JackE

>>>I plug the charger, LED lights about 2 minutes and goes away. >>>

Do you still have your old battery to see if it behaves the same way? Jack E/NJ

gsduwadi

Yes I have my old battery should I replace it.

JackE

I just want to try to repeat this experiment with the old battery that you did earlier with the new battery to see if the old battery gives the same results as the new battery. Does the battery LED light for about 2 minutes and goes away after the same experiment? Jack E/NJ

EXPERIMENT

<<<Turn off the machine. Unplug charger. When you gently insert and withdraw a paperclip into the pinhole, does it feel like it's a spring-loaded switch?>>
YES it feels like spring-loaded.
Done multiple times up and down.
I plug the charger, LED lights about 2 minutes and goes away.

gsduwadi

Yes I replaced with old battery the yellow light goes longer for an hour.

JackE

What happens to the battery light after an hour with the old battery? Jack E/NJ

gsduwadi

it was yellow no change in color..

JackE

Yes, but is it still yellow with the old battery? Is the LED still turned on? Remember, the new battery only stayed yellow for 2 minutes then turned off. Jack E/NJ