Bạn vo phan quan li Bluetooth (bang cach vao settings->bluetooth hoac an vao thanh taskbar tren mang hinh -> 1 cai bang chay xuong, chon muc Bluetooth) roi click vao o^ visible (no' hien len dau stick V) roi click save. vay la ok, ban keu ban cua ban tim kiem lai thu xem. chuc thanh cong. minh onl = dt mong moi ng thong cam.