https://mattpilz.com/how-to-downgrade-epson-xp-printer-firmware-fix-ink-not-recognized-error-xp-300-to-xp-640/ This site has a solution that worked for my XP-330
Epson "ransomware'd" my XP-330 on Sept 25,2019. They say in multiple emails that I am required to buy their criminally over priced ink for it to work. Has anyone started the class action lawsuit yet? Where and how do I get the firmware downgrade? If I can't fix it I will use it for target practice.
My 3rd party inks have been throttled by the new Epson update.
After firmware update, cartridges not recognized