Upgrade Surface Pro?

I wanted to ask if I could upgrade my Surface Pro laptop. Can you do that? Answers would be helpful.

As far as I know you can't open the case because the screen is stuck together.

accordingly, the devices are not repaired but always replaced.

was at least like that with the 3rd generation

So you can save your files and then exchange them for 2500 euro?

Ne the exchange fee is lower. But you won't get a better one, even just the same device.

A total cheek.