Default MDA II dead after update now shows usb v1.01 on display

hallo

i have download RUU16007ger_t-mobile_de from t_mobile site.
now i start update but connection broken up.
i started update again but no connection with pc active sync and mda.
on mda display shows all times usb v1.01.

i read in forum many posts but i understand not all.
i`m new mda user pls help me.

thx

best regards
alex