820-00136-A doesn´t work with original magsafe

2click

Member
Hi, I have this board and a weird problem... when I use mu PSU it turns on, I get a green light on the magsafe cable and everything seems to be ok. When I connected it to the original magsafe 85w it damaged U7100 and high and low mosfets, all where shorted to ground, what can be causing this behavior?
 
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