WBX not recognized with USRP1

Im having trouble getting WBX cards to work with my USRP1. Im using the
same code I did with the FLEX400 card, but i get the following error:

"Warning: Treating daughterboard with invalid eeprom contents as if it
were a ‘basic rx’

Warning: This is almost certainly wrong… use appropriate burn-*-eeprom

My USRP board is rev 4.5, S/N 5443. Is there a different way of
addressing the WBX cards vs the old FLEX400?

I tried the card with usrp2 and it works fine, so i know the WBX card is
ok. but still no worky on USRP1. serial number 5443. any help?