Chosen Solution

Hello, I have a problem with my MacBook Pro [early 2013 15 inch retina display]; the problem is in the screen and the HDMI and thunderbolt ports, Here the video i recorded to explaining my problem http://youtu.be/FUO-vdt1dg4}Macbook,

  • as I show you in the video the problem is when I wake up my laptop or restart the screen stay black (doesn’t work) I should close it for 30 seconds and open it again (sometimes I do this step 2 or 3 times) and it’s work good, about the HDMI and thunderbolt ports they doesn’t work. I’ve try to reset NVRAM & PRAM , but nothing work ! I’m facing this problem from 4 month ago, and I search a lot on the web to fix it but there’s no solution! This problem starts one day when I was browsing internet and playing music, suddenly my laptop screen came black and the sound was killed, when I press any button in the keyboard it make sound, so I had to force shutdown my mac, after that the problem starts, after 2 months it repeated once and this time my Mac gave me a report logs. panic(cpu 0 caller 0xffffff80004dbf5e): Kernel trap at 0xffffff800084c16e, type 13=general protection Systems Log (full) Hope anyone here can help me.

It costs me a new logic board !

I would try setting up a bootable USB thumb drive, then restart it off of the thumb drive. Use the control panel boot disk setting to select the USB drive. What happens then? If that worked you’ll need to redo the OS. I would strongly recommend you make a backup of all of your files before doing the next step. Now run Disk Utility on the SSD make sure to do disk & permission repairs (you may need to do it a few times). If after 10 times it is still coming back with errors you’ll need to reformat the SSD and install a fresh copy of the OS. Hopefully its an OS issue and not a hardware issue. If it is a hardware issue you may want to bring this into an Apple Store as it sounds like it may need a new logic board. Given the GPF (Panic call) it could be either a hardware or OS level issue. Let us know how it goes - Good luck!

Swapping in new logic board appears to be the standard procedure Apple will do. Apple will not attempt to repair any faulty main logic board, as surface mounted boards are tricky to repair. When in doubt, they will just prescribe the new logic board option to their customer. The issue with this approach is, with the high-level integration on the logic board, it will mean getting a new CPU, GPU and the lot even if there is only one tiny fault in one component. This approach would mean additional cost for customers. Also noted that the current version of MBP shell are not tough at all, compared to the last generation. The thickness of the aluminium at various edges is simply too thin and can easily be dented to cause internal damage…maybe Apple should look into reinforcing the corner and edges to provide better protection.

I wouldn’t believe it if I hadn’t done it myself. When I replaced the hard drive with an Apple hard drive, not one from a third-party, the machine boots. Beforehand I could press the power button and would get fans, but no image on screen and no chime. Sometimes with the third-party hard drive in the computer I could press the F1 or F2 button repeatedly upon start up and I could get an image—if I had the HDMI cord plugged in. I’m not sure the logic behind it, but I suspect it had to do with it trying to throw the image to the external monitor. I never did get an image to the external monitor, but having the HDMI cord plugged in in combination with the repeated pressing of F1 or F2 would make the image come up on the Mac’s display. Once I put the original hard drive back in or put in a Apple hard drive, everything worked fine.

Good luck, and I hope this works for y’all. Chris Leeds Certified Independent Apple Specialist Well Connected Life Dallas, Texas