Dead MacBook Pro with flashing battery indicator
So I have a MacBook Pro, unibody, early 2011.
The machine doesn't boot up, it just lights the battery indicator five times when pressing the battery indicator button. After some presses, only one light appears to blink (five times again) and then suddenly stops responding.
The battery indicator lights are only seen with the MagSafe connected. And the MagSafe light stays green forever. (went orange one time and then returned to green). Without MagSafe, it's 100% dead.
Tried to heat the board, no success. MagSafe charger is 85W, so no problems with lower chargers.
Any ideas on how to solve this issue?
Thanks in advance.
EDIT: the machine doesn't boot up even without the battery (MagSafe only).
PS #1 - Nov 3rd
So I just got a 60W charger (aftermarket) to test with this MacBook Pro.
The results are "better", on par to what I expected. The machine still doesn't boot, with or without the battery (MagSafe only). However, the 60W MagSafe appears to fix the "death" of the battery indicator lights (finally).
So it starts with a blinking LED for a few seconds, and then "upgrade" to the full LED blinking five times. I didn't receive the battery yet - maybe next week.
Q: MacBooks are able to power on ONLY with the MagSafe power?
Is this a good question?