Hardware sticker laptop settled, problems with returns?

Un
2

I want to send a laptop back (cancellation) but I have made the stickers underneath the keyboard. What is the legal situation? Could there be problems with the return in the form of value replacement or similar?

Br

If the laptop is not in its original state, there could be problems.

(Warning, I'm not 100% sure)

Sp

Removing stickers goes beyond a simple trial and error.

Here, the dealer can demand compensation.