SAMSUNG

• *#06# xem so imel
• *#9999#
• *#2767*3855# khoi phuc toan bo thong tin EEPROM ve mac dinh
• *#8999*246# xem trang thai chuong trinh
• *#8999*289# thay doi tan so canh bao
• *#8999*324# hien thi man hinh sua loi
• *#8999*523# chinh do tuong phan manh hinh
• *#8999*636# xem trang thai bo nho
• *#8999*778# hien thi bang dich vu sim
• *#8999*842# kiem tra che do rung
• *#8999*9266# mo man hinh go loi
• *#8999*9999# kiem tra phien ban phan mem
• *#9998*228# kiem tra hoat dong cua pin
• *#0523# chinh do phan giai man hinh
• 1111 ma bao ve mac dinh cua may