dstt freezing homebrew roms

i have a dstti and a ds lite.my card keeps freezing homebrew roms but runs regular non homebrew roms perfectly.I've reformatted it to every format and no luck. It runs the homebrew sometimes, but then it also freezes at the loading screen. Any one know how to fix it?

Homebrew needs DLDI patching, which your card's firmware needs to have. Try downloading the newest firmware, or just don't play homebrew.

What particular homebrew/s? It should be auto-patching anyway, and the lack of DLDI code doesn't freeze it at load-time.