MBP not starting up after disconnecting battery from logic board?
So yesterday my macbook pro was working perfectly fine nothing wrong with it at all but after i followed the guide on ifixit.com to upgrade ram the computer would not start up unless it was plugged into the magsafe adapter. The led on the charger is always green which i think means that the battery isnt being charged. when i am able to power it up while its charging, in the menu bar the battery icon has an X over it and says no batteries available power source: power adapter.
please help asap as need this computer for school!!
also i have already tried smc reset and pram resets but nothing changes.