DCT4 flash problema

[ikarus]

Hi Friends!

I have dct-4 1.01 doungle. I downloaded flash file from
Brad /8310 v554/. I use DCT4 flasher 2.0. When I push flash the
/Sw ask: u_2nd.fia 1506byte/

sw said: Invalid flash descriptor received

Please help,
Best regards

Thx

Ikarus