M11XR3 power issue, random blinking power button

Hello everybody !

I just experience a BIG problem !

This morning ... (ohh who cares about my life ;-) )

So the problem is that when the laptop is plugged in with the A/C, it will work with my PowerButton turning Blue, then Light blue (starting the light circle) for x sec (kinda random between 1-3 sec and sometime it will run a full light circle Blue-Yellow-Blue) then DARK...  disconnected ...THEN ! it turn ON again ... and that cycle repeats itself !

If I unplug the A/C then plug it in, I have (Dark,1-2sec)(Blue,2 sec)(Dark,4sec)(Blue,2sec) ect,

Here is a pattern of when it turns on (in sec)  : 5.0, 4.0, 4.0, 4.0, 8.0, 14.0, 6.0, 4.0, 4.0, 9.0, 4.0, 5.0, 4.0, 5.0, 4.0, 7.0

the 14 here is a complete circle of the light,

I don't understand ! It worked fine, I got to work and then plugged it back and ... doesn't work anymore !

I tried different plugs ... no difference (yeah I know it's kinda stupid).

I also tried to see if it was the connector (gently pushing it in every direction), but it work, I got power for 1 sec then nothing then 1 sec again, so it should not be the connection.

So ... doesn't anyone has already exprienced that ?

Do you think it's an A/C problem ? a battery ? Or the motheboard ?