Replace motherboard from US to PAL

Hello,

I bought the pink 3ds xl (the American version) since there’s no EU version in that color..

and I was wondering if replacing the US motherboard to a EU motherboard will change the region of the console?

Because all of my games and my account are EU and I would really like to keep the pink shell..

I am really bad at fixing stuff (already broke my ds lite trying to replace the shell..) and I have no one willing to replace the motherboard in israel.

Is there anyone willing to help me? :(