Chosen Solution

I want to upgrade to a newer phone but dont have the money to pay for a full phone so I’m wondering if I could find a way to put a galaxy s9’s logic board in my galaxy s7 edge. Just want to know if its actually possible and how easy it might be.

Yes in many cases you should be fine. Some newer models may have issues but the 7 series from my understanding your fine

Lemonade Gaming I hate to be Negative Nancy here but there is no way you can make it fit. The Sub PBA, all the flexes and all connections are entirely different in every aspect. So you’d be doing a lot of reverse engineering and metal work to get the board to fix your S7 Edge case. This is your board

and this is the S9