File RS-500 100% OK FILE 
        http://forum.gsmhosting.com/vbb/f296/qmobile-x3-mtk-6571-factory-file-1945808/#post11032386

              https://docs.google.com/uc?id=0B-p8BFBjV5xwdXRld1VpUkZyeHc&export=download