For me it worked with new3DS on 11.0.0-33 with homebrew launcher's save manager - no freezes at yellow screen. But I don't know, how maybe because of the 11.0.0-33 sysNAND (SM works only from this version and up), or the fact that new3DS doesn't need to reboot while lunching the SM cartridge or the CIA version, like old3DS does. I got the cartridge version of SUN btw, and it doesn't work on old3DS Gateway, rxTools (gives the "cartridge has has been removed" black screen) and save manager freezes at yellow screen, like said above.
PS. svdt behaves like save manager works only with new3DS.