Q: macbook pro mid-2010 deleted mac parition and now will not boot

To me it apears that either your Mac has a hardware problem or that the format/file on the HD are messed up and it tryies to boot to a Recovery partion and gets confused bevause of what it reads on the disk.

If you disconnect the internal disk and connect a SB non-system disk then if you can boot to Internet Recovery that indicates a problem with the internal drive.

Sorry to hear about your computer DeeJay

The only way to tell for sure what is going on if hardware, is to open it up, disassemble and trouble shoot. Not really a DIY affair. My guess is that you have an nVIDIA GPU and during that time there were lots of reports of bad solder being used.

You can Google oven repair of NVIDIA GPUs and consider trying it. If a close visual inspection shows some bad solder, you can also use a handheld heat gun to reflow the solder instead of the oven trick. Considering your computer is currently toast anyway and you don't want to spend the money for repair, you have nothing to lose. Of course the next problem is that even if you manage to get it working, the next time it gets really hot, you may be right back here again.

iFixit has excellent step by step repair guides for how to disassemble/reassemble your computer.

While Apple does an excellent job of refurbishing older laptops, for $600.00 you could buy a slightly newer used computer. You could also consider spending that money towards a new computer.

Apple was not the only manufacture that had problems with nVidia GPUs

Good Luck, Greg

"If i post a photo of my logic board would it be easier for you to see if it has bad soldering"

No, not really.

I do from time to time repair circuit boards/computers, but "seeing" means careful examination with a magnifying glass and then I normally go after connections with a multi-tester checking continuity and ohms. Maybe even an oscilloscope.

The truth also is that sometimes you just won't see anything. Other times, you do see something obvious and if you are very lucky, it is where you can get to it.

Since the GPU is a separate chip on the Logic board, you can at least look where it connects. Discoloration or seeing solder pulled away from the contact points are would be the first things I would look for.

Sorry I can't be more help, but long distance remote circuit board repairs are really beyond my help.

Greg

I doubt it since the previous solder problems were between the GPU and logic board. They were under the GPU so they were not visible.