Alright let me clear it up can you still use your ps3? Is the red screen only coming up when you try to update? If so then your still kinda in the clear..if its popping up as soon as you turn on the console then your bricked..
Id recommend going into the recovery menu and trying to **** around with that a bit, maybe do a system restore via recovery menu? No idea.
**dont hold me responsible if you end up bricking