Hi.I would like to ask you did enybody have problem with Qcn. file because I can not to fix it .I have upgrated me software and Acer download tool showed me this message please somebody can help me wit this issue . :The size of QCN file is not valid.The Qcn inside your phone is probably crashed.Do you want to continue download process??? Thanks very much to everione who can help me with this problem...