30.01.25 is a scanner assembly error. There is no need to update anything here but the scanner assembly itself.
Check all of the contacts that the scanner assembly has to the main printer. Reseat them all to be safe and make sure they are nice and secure. If that doesnt work then you will have to find a replacement scanner and install it. Its a very simple replacement proceedure if you feel like investing the money in another scanner assembly.
If not then invest the money for teh scanner into a new printer model.
Some other suggestions were posted here: