It is a rare case that the sticker password doesn't work (it has happened that the sticker was exchanged in factory).
Are you really sure-sure that you are not mis-reading a character or two?
Before doing anything else, try again, check:
If you are defintely positive that the sticker password doesn't work you can still Netinstall, as there is a way to remove the password that way, but since it is not easy-peasy try first the above.