Well first of all, i hope that nobody has to use this tutorial ever

But since a lot of people have been asking what to do ive made a tutorial.
-What to do if you think youve bricked your psp:
1. If you have a custom firmware, use recovery mode to reflash your psp to 1.5 or the same custom firmware. Im sure that there are plenty of topics covering that.
2. If you dont have a custom firmware, i dont know what you can do. If someone know anythin, feel free to reply with something.
-What to do if you have a (permanent) brick
1. Call sony and say that you little brother ripped the battery pack out your psp while upgrading to 3.11
2. Go to the store you bought your psp and say that suddenly your psp stopped working and that you want a new one.
3. Try selling your psp on e-bay, there seem to be people who need bricked psp's for experiments to unbrick it.
4. Watch some tutorials on how to open up your psp, and sell the lcd, d-pad, etc separatly.
5. Make a video of you demolishing your psp. (no just kiddin

)
6. Buy u Undiluted Platinum modchip, at their own site, or off ebay and replace your own NAND-flash memory with the modchip, and your psp should be working (thanks sale 666

) This is pretty expensive though

7. Go to wallmart, buy a new PSP, put your bricked one in the psp-case, say it doesnt work and ask for a refund
Hope this helps....