I bought my gateway cart a while back (2015) for my 9.2 (U.S) firmware Old 3DS XL. I haven't touched my 3DS in a few months, and never changed the launcher.dat file since I first got it working (with 3.1 I believe.) I decided to change the launcher.dat file to the newest (3.7.2) but now whenever I try to access the gateway menu through the browser, the browser crashes with an error "An error has occured. Please save your data..." I've tried pretty much everything. I formatted both of my sd cards (the one in the red cart and the 3DS original sd card.) I tried deleting my cookies/history and then accessing the site. I tried the guide that uses the homebrew launcher, but only get a black screen when I choose the gateway application. What else should I try? Thanks!