Open the bottom case and unplug the battery. It has a clear tab on it. Pull out not up. Then plug charger in and perform SMC reset. Lights on charger will change from amber to green. Normal. After Reset, should power on. Replace battery. Hope this works.
Open the bottom case and unplug the battery. It has a clear tab on it. Pull out not up. Then plug charger in and perform SMC reset. Lights on charger will change from amber to green. Normal. After Reset, should power on. Replace battery. Hope this works.