hello friends, i have a 2014 macbook pro 15inch and it won't turn on. mobo number is 820-3662-A. The voltage rail pp3v3_s5 is ok. All other rails are trying to switch on. They continuously go up and down , on and off, on and off all the time, can someone help me please because this is my only laptop,
thnks,
miltis
thnks,
miltis
