Want to ask first before changing the firmware -
Just acquired a WF-7720 (using 27 cartridge) through grey import but at where I live only WF-7721 (using T188 cartridge) is available...
Will be using genuine cartridge as I am really after the pigment ink.
After making chipless is it possible to use the T188 cartridge directly? Or is it possible to flash the WF-7721 firmware?