How to fix a psp that has the error (DADADADA)?

Question

Ive been trying to update my psp and every time I do it says that it can't play and follows with (DADADADA). What do I do?

Answer 1

step 1: get a hammer

step 2: bang hammer on psp

step 3: smile

Answer 2

This video has helped people solve it

http://www.youtube.com/watch?v=VDwV7vKteiU