It's like USS, rain sensors, lidar etc... it's just Elon Musk NEVER admit he made some wrong choices so he will just continue to dig an it will eventually works. That's at the same time his strength and weakness : he never giveup.
I don't see the issue here. They can increase the voltage with a converter / transformer. We master this technique since at least a century, lol. Same for cable / socket, it can be adapted. Last resort they can could switch to a more recent Intel Atom...
Think of this : they managed to switch...