Unless the repair shop does micro soldering, you are likely looking at a motherboard replacement.

And the micro soldering service could be around the same price as the replacement motherboard.

It is shame, but I don't do much soldering and finding local people with the skill is difficult. Maybe it is something that I can add to my services later, as one of my sons has an interest in it. I could always learn, too, but it wouldn't have a quick return on my investment for time (though I already have the majority of the equipment I need).