alice 0 Report post Posted September 25, 2020 Hey, I just bought a 'renewed' XP-15000 and a CISS set on ebay, but I can't seem to figure out how to downgrade the firwmare, and the chipless install failed as well. Is this possible? Firmware NW07K7 07/07/2020 Share this post Link to post Share on other sites
wic.support 30 Report post Posted September 25, 2020 Chipless firmware has version NW07K7 as well, updater is supposed to fail during update. Please, read this: https://forum.2manuals.com/index.php?/topic/80765-how-to-update-and-activate-chipless-firmware-complete-guide/ Share this post Link to post Share on other sites
alice 0 Report post Posted September 28, 2020 Right. Okay. I bought the license and it worked. It's just a bit deceiving. And the firmware update utility and wic reset were unable to help me verify if my printer would work with it. Regardless, I've got it working. If you have any changelogs for your firmware updates, could be nice to see Share this post Link to post Share on other sites