Da so may' zo bang uc deu su dung rat lag sau 1 thoi gian... Voi lai luot bang uc hay bi loi. vd: ta muon download 1 file nao` do' bang uc, nhung kich down no' bao' 1 tu rat choang vang: "ERROR'', thu lai nhieu lan van error, rat nhieu may bi nhu the nay, neu the thi ho tro download pro den muc nao cung chi la con so ''0''. trong khi do op era mod luot luon binh thuong, ngoai tru khi trang truy cap die, voi lai no ho tro download nhanh xap xi uc => cai nao pro hon?