I need Help on my flashcart 1.4.5u (DSXL)

http : // www . r4issdhc . com/this is my flashcart and i cannot play on my DSXL 1.4.5u versionany help?

Replying to #1

Quite simply because your flash cart's official website only state that the latest firmware supports v.1.43 (DSi), not v.1.45 (DSi). Go buy a better supported flash cartridge.