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.
MacBook Pro 15 820-2850 vertical red lines when it uses intregrated GPU, dedicated gpu works perfectly. What could be the cause? is more probably mux or failing intel gpu?