Why is it not turning on

so i have 2 possible theories as to why your system may not be working :

1.Battery: teardown your laptop and take apart the battery, it is about an inch from the bottom on your laptop. once you do that ensure that there is no residual power by pressing on the power button for about 10-15 seconds. connect the charging cable again, if the green light still shows up, it could mean that your battery is dead or at least not functioning to its fullest extent.

2.Screen: in case the battery is working fine the likely culprit is the screen. you can try replacing that.
here is the guide for the same: Asus Chromebook C101P Screen Replacement - iFixit Repair Guide