I have the P600, I changed the firmware to chipless using the key and WIC tool from here.
I have installed 2 new ink cartridges compatible versions so far and they worked.
I am installing the Vivid Magenta and i cant get it to recognise it.
The two screenshots of the WIC report show the difference when i have genuine cartridge and compatible ones installed.
I have turned the printer off and on again still same error.
Can anybody help to force this to clear and force it to reset the VM