yes, we know yours dont have the solution. I just wonder to know if we change the WF-3820 firmware for the WF-3720 firmware it could be possible works ? Because it seems both are the same printer.
Hello friends, we are using the ARC chip with bottom reset and it is working very well. Works only in european models. Please check:
https://www.youtube.com/watch?v=_iuxF_iOAtk