kiem tra sim xem co chedotiet kiem pin hay khong.*#7780# (rst0) : khoi dong lai may (can nhap mat khau).*#7370#:khoi phuc cai dat goc (cannhap mat khau). *#7370925538# (res0wallet) : luu tru bi mat wallet (phai biet matma may). *#67705646# (opr0logo) :xoa logo mang, du ve macdinh laten mang cung cap dich vu.*#7220# (pca0) : kich hoat che do PCCH tietkiem thoi gian truy cap gprs (tuy vao mangcung cap dich vu) .*#7230# (pcd0) : tat PCCH, may tu khoi dong lai. *#2640# : hien thi ma bimat dang su dung. *#2820# : hien thi bluetooth. *#7489# : hien thi man hinh bao ve. *#3925538# : xoa bo chi tieu.x# : xem so thue baovi tri x trong the sim (x tu 1-255).#pw+1234567890+1# hoac +2#, +3#,+4#,+5#, +6#, *3370# (efr0) : kich hoat che do EFR, cho chat luong am thanh tot hon nhung ton pin hon. #3370# (efr0) : tat che doEFR neu da bat, may se khoi dong lai.*4720#(hrc0) : kich hoat che doHRC, chat luong am thanh kem nhung it ton pin hon. #4720# (hrc0) : tat HRC neu co dung, khoi dong laimay.*#0000# : thongtin phan mem (phien ban, NSX, ten phan mem).*#7760 (srn0) : xemso seri.*#06# : xem IMEI.*#92702689# (war0anty) : cac thong tin bao hanh.*#746025625# (sim0clock) : kiem tra sim xem co che do tiet kiem pin hay khong.*#7780# (rst0) : khoi dong lai may (can nhap mat khau).*#7370# :khoi phuccai dat goc (can nhap mat khau).*#7370925538# (res0wallet) : luu tru bi mat wallet (phai biet matma may).*#67705646# (opr0logo) :xoa logo mang, du ve macdinh laten mang cung cap dich vu.*#7220# (pca0) : kich hoat che do PCCH tietkiem thoi gian truy cap gprs (tuy vao mangcung cap dich vu).*#7230# (pcd0) : tat PCCH, may tu khoi dong lai. *#2640# : hienthi ma bi mat dang su dung.*#2820# : hien thibluetooth.*#7489# : hien thi man hinh bao ve.*#3925538# : xoa bo chi tieu.x# : xem so thue bao vi tri x trong the sim (x tu 1-255).#pw+1234567890+1# hoac +2#, +3#,+4#,+5#, +6#, +7# : kiem tra co khoa hay khong.#pw+xxxxxxxxxxxxxxx+1# hoac+2#,+3#, +4#, +5#,+6#, +7#: mo khoa ma symbian.>>Format may symbian s60: Tat nguonroi an giu dong thoi cac phim *, 3, goi di va nut tat mo nguon. Cac giu lieu luu tru trong bo nhodien thoai se bi xoa.(Mabao ve mac dinh cua Nokia: 12345).