This paper would be incomplete without addressing the physical limitation. Resetting the counter via software tells the printer that the ink pad is empty.
Epson charges approximately $60–$100 to replace the waste ink pads and reset the counter (plus shipping). A new Epson L3210 costs around $250. A typically costs $15–$30.
A premium resetter will read your current firmware version (e.g., 1.2.3) and confirm compatibility before making any changes. It should warn you if the firmware is too new.
Here is the better, safer, and most effective method to reset your Epson L3210.