From the knowledge I gained from various hackers you can't really brick the 1000-2000 if you have a magic memory stick and a pandora battery, if you do you just use those and good as new.

Since I'm still new to it myself I'm not sure exactly but it seems to be true.

I was on 5.50 CFW and it ran like a cow that had a few gallons of prune juice aka not well at all.

I put it on 6.60 CFW and it runs like a champ.