I need to rollback the firmware on this printer. I need more detail. I understand running the updater and powering down on purpose to get the printer in recovery mode. Need more detail on the correct older firmware to accept the after market inks and more detail on how to swap this file to "fool" the updater process. Also would like more detail on how to change updates to never. Have seen how to use updater to change to never but this printer does not seem to give me that option. Thanks.