Guide: Downgrade Printer Firmware (Fix Ink Not Recognized Error) Epson XP-300 to XP-630 (XP-640-646) - YouTube
WIC Reset Utility - When Your printer gives messages: Recovery Mode or ROM Not Writable printer stops and you have to use this solution: Upload Recovery Firmware. It can be easily done
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Epson's update disabled my printer. What to do? Firmware roll back or something better - YouTube