Does your MacBook Pro has a black screen issue? Kernel panic issue? Or a noisy fan issue?
Most of the old generations Macs have defective graphics card (GPU) issues. Normally, to be able to solve this issue, the logic board requires replacement. However, the same issue appears again in a short period of time. This issue is lying on the defective manufacturer part and the majority of the parts have the same issue. Due to this reason, there is no permanent repair option for graphics card failure.
Apart from this, there is one model that has the same symptoms but a different issue and it is repairable!
If your MacBook Pro Retina 15″ Mid 2012/ Early 2013 model has any of the issues below;
* Black screen or blank white or blue screen
*Device suddenly gives the kernel panic
* or fans are running at high-speed and working noisy.
· MacBook Pro (Retina 15″ Mid 2012)
· MacBook Pro (Retina 15” Early 2013)
If one or more of these issues have seen on the device, the problem comes from the U8900 GMUX chip not the defective graphics card. To be able to solve this issue, the device requires the Logic Board Repair Service to re-solder U8900 GMUX chip.