Ubuntu 14.10 ZTE Open - (OPEN_EU_DEV_FFOS_V1.0.0B02) is not supported

Hi Everybody, 

I have been flashing my ZTE Open but I got this message over and over again
"roamer2 (OPEN_EU_DEV_FFOS_V1.0.0B02) is not supported."

How can I fix this, because I don't know where can I find the correct image to install before flashing my ZTE?

Thank you. BTW nice project 
