Sounds like its bricked and because of the fact that its a 3000, basically means that there is no way of recovering it.
EDIT: Just to make sure it has nothing to do with the flash1, try this;
1. Power off your PSP
2. Hold down "Select" "Start" "Square" "Triangle" at the same time while you power up your PSP
3. If it works, then your back in business, if it dont work, then its a perma brick