Yeah, I have a problem as well...
The thing is, i was trying to download the new wood for my r5 revolution sdhc or whatever, right? But after all my missed intents, now it doesn't want to work (stays on Loading like a little b...). And then, I put the old software back, but it still doesn't work. And trying to see what wasn't working, i changed the microSD card with another one my sibling has... mine worked on hers, but hers didn't wwork on mine at all (same thing), meaning... the card doesn't work... I guess? So is it really that? If not, what is it? And how can I fix it? Please help me with this, and i'd rly appreciate it >.<