1, hien nay sky 810nen up rom theo kieu nao thi an toan ko bi can't mount 2, minh moi tap pha sky nen thay dog nay chet nhieu nen nho ace hd minh flash rom dc ko 3,may minh hien tai die imei ma nghe noi co the flash dc backup . nhung phai dung cwm, ma day la nguyen nhan can't mount. vay cho hoi bac nao co cao kien gi giup gium minh 4! PRO nao co cwm an toan thi cho minh xin hien tai dang dung ban 810k android 4.0 ban goc thanks you