jorgeg73 Hi there,
They are different BIOS version family.
EQi12D401 is your original version, you need to update to EQI12D406,
EQI12403–there is no letter D in this version, and D means DDR4, so this version means that the item model doesn’t have an on-board DDR4 RAM in it.
Since your item is bricked, please contact our support team for RMA. Please contact us at support-pc@bee-link.com