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.
board turns on for half second, either see battery logo or apple logo, then disappears with only backlight. i've tried putting in dfu many times but was unsuccessful. is drawing 20v with .22 amps constant.