Same problem here:
Recently i do a reset for maintenance box (T6716) and it's work. But i do several time for cleaning head and when i make a charge ink for my printer the waste ink overflowed and maintenance box go to end service life too. I make a reset for maintenance box again. but when i put it inside the printer i got this message. " cannot recognize the maintenance box ". screen shot
Is there any modded firmware that not read the maintenance box? if i install the modded firmware from this site then will my printer will not read the maintenance box?
https://inkchip.net/soft/
I did that for my old printer WF-5110 via WIC reset. But WIC reset not has a modded firmware for WF-C5210.
Thanks in advance.