Riivolution isn't working anymore

[DETHMETAL]

I've recently started using riivolution again, and the hacks on my flash drive have worked perfectly before.
But for no reason riivolution won't even read my flashdrive anymore. it worked perfectly last week. now all it does is boot the normal brawl disc. i've tried re-formatting my flashdrive, and i've tried re-installing riivolution with no success. Please help if you can.

 

[DTST]

Try a different version of Riivolution.

[DETHMETAL]

i had 1.4, which stopped working. i got the new version 1.5, which also didn't work.

[DTST]

Try re-installing 1.4.

[Mansta8]

Try a different USB slot, mine didn't work when I first used it, and this fixed it.

[DETHMETAL]

i actually tried the two different usb slots several times. it didn't work. i'm gonna' try my sd card..