"safety_test" not working on GM9?

I am following this guide, https://3ds.hacks.guide/uninstall-cfw.ht... Since i am trying to unmod my 3ds but whenever i try to do it, It does all of the steps and it stops at "boot G:/exefs/.firm And no, no error code, nothing just a black screen, BUT WAIT! It's "sorta" what i mean is that it is a gray likeish screen Which means it's still in gm9, but nothing appears, I am not going on their discord cuz of gen alpha and that crap.. Nothing is wrong with my CFW 3DS, like AT ALL. And didn't do anything that would brick it if i unmodded it, Because i checked this guide steps muitple times, PLEASE HELP :(

would darthmango answer?!??! :0 and if he does js to let u know i have my 3ds fixed nand finally worked somehow-