Maybe a shop that isn't Nintendo.

@Farofa there are shops that have a policy to not bring modded consoles in tho

Oh, rsrs, let me search some that allow modded consoles.

Try Geekmatics or BetaGamma.

I would take out the sd card and create a back-up of everything in case anything goes wrong. Ive taken my sd card out before and nothing was damaged on my end. While on this topic, I too need to find a repair shop as well. Last time i took it in, they broke my home button. :/

Thanks!