For $29/mo, we provide access to advanced level technicians who will answer your questions on any Macbook board related matter to the best of their knowledge promptly & walk you through how to solve your problem so you can deliver a working board to your customer.
Hi I tried with kown good USB OSX and did pram reset. Tried different rams one ram slot at a time battery disconnected. Still restart when shutdown from osx but can shutdown pressing the power button.
HI Info, This is SOLVED. I noticeed PCIE_WAKE_L was going down to 1.9v after couple of seconds. check resisters all good. Replaced U3900 SOLVED. Thank you very mcuh for your help. See you until nest time I trouble you.