A1286 2011 15” MacBook Pro

{|class="wikitable" 100% of GPU's are faulty Use Dosdudes by pass https://doslabelectronics.com/Demux.html or CMIzapper GPU KILLER http://www.cmizapper.com/products/tiresias-gpukiller.html
 * Loading bar not going all the way (By Pass GPU)
 * Lines or artefacts on screen (By Pass GPU)