Did Not Work

I did everthing with the pandora thing followed all the procedures but it did not work. It would not downgrade. Ihave firmware 3.73(fat psp). Can somebody plaese help me.

What is not working? Did you stick the Pandora's Battery and Magic Memory stick in your PSP?
Or can you not run the Pandora Installer on your PSP?

Did you create it on a homebrew enabled psp? cause it wont work on anything else than that...if it was already created before using it on your psp then please elaborate on what your doing so that we can try and pinpoint an error.