It might technically be possible to desolder and upgrade the CPU, GPU, and RAM chips with a SMD reflow station, but I am not 100% sure if it works. Note: I don’t take responsibility if you try this and you ruin the Surface Pro

I use B-7000 for phone and tablet repairs as it is a strong glue that gets soft when heated. If you are interested, here is the link for the glue: https://www.amazon.com/MMOBIEL-Multipurp...