hey phil! long time no see. haha! anyway, never thought this say would come. but my exact same phone (w850i) suddenly started with this white screen problem also. i ofcourse have tried to reflash it completely(including rewriting the gdfs) but still does the same thing. Difference between my problem and the person who asked the question is the my flash DOESNT have that imie vs gdfs mis-match. Another difference is that sometime the phone screen will be fine and then suddenly it starts with the white screen again. Dont know if this helps, but the phone does seem to operate fine when the screen goes white(well atleast i think) and i have replaced the flex and the lcd already. please advize on the matter. thanks