Ma so bi mat philip
*#8377*# : hien thi phien ban phan mem.
*#3333*# : hien thi danh sach bi khoa.
*#7489*# : hien thi ma bi mat.
Ma so bi mat motorola
*#300#ok : xem phien ban phan mem.
*#301#ok : kiem tra ban phim.
*#303#ok : chuyen sang tieng Anh.
*#304*19980722#ok : bat Engineering mode.
*#304#ok : tat Engineering mode.
*#307#ok : kiem tra Engineering mode.
*#311#ok : doi code mac dinh cua may.
*#400#ok : ADC, CAL, VAL (???).
*#402#ok : chinh do tuong phan.
*#403#ok : thong tin nha san xuat.
*#302#ok : kiem tra Acoustic.
*#19980722#ok : quan ly mat khau.
Ma so bi mat sony
>*<<*<* : xem menu (< : sang trai, >: sang phai).
*#7353273# : kiem tra phien ban phan mem (thao sim)
*#04*0000*0000*0000# : mo dien thoai khi khong co sim.
0# : so dien thoai goi cuoi.
Ma so bi mat sony
>*<<*<* : xem menu (< : sang trai, >: sang phai).
*#7353273# : kiem tra phien ban phan mem (thao sim)
*#04*0000*0000*0000# : mo dien thoai khi khong co sim.
0# : so dien thoai goi cuoi.
Ma so bi mat nokia
*3370# (efr0) : kich hoat che doEFR, cho chat luong am thanh tot hon nhung ton pin hon.
#3370# (efr0) : tat che do EFR neu da bat, may se khoi dong lai.
*4720# (hrc0) : kich hoat che do HRC, chat luong am thanh kem nhung it ton pin hon.
#4720# (hrc0) : tat HRC neu co dung, khoi dong lai may.
*#0000# : thong tin phan mem (phien ban, NSX, ten phan mem).
*#7760 (srn0) : xem so 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 phuc cai dat goc (can nhap mat khau).
*#7370925538# (res0wallet) : luu tru bi mat wallet (phai biet mat ma may).
*#67705646# (opr0logo) : xoa logo mang, du ve mac dinh la ten mang cung cap dich vu.
*#7220# (pca0) : kich hoat che do PCCH tiet kiem thoi gian truy cap gprs (tuy vao mang cung cap dich vu).
*#7230# (pcd0) : tat PCCH, may tu khoi dong lai.
*#2640# : hien thi ma bi mat dang su dung.
*#2820# : hien thi bluetooth.
*#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 nguon roi an giu dong thoi cac phim *, 3, goi di va nut tat mo nguon. Cac giu lieu luu tru trongbo nho dien thoai se bi xoa.
(Ma bao ve mac dinh cua Nokia: 12345)
Ma so bi mat nokia
*3370# (efr0) : kich hoat che doEFR, cho chat luong am thanh tot hon nhung ton pin hon.
#3370# (efr0) : tat che do EFR neu da bat, may se khoi dong lai.
*4720# (hrc0) : kich hoat che do HRC, chat luong am thanh kem nhung it ton pin hon.
#4720# (hrc0) : tat HRC neu co dung, khoi dong lai may.
*#0000# : thong tin phan mem (phien ban, NSX, ten phan mem).
*#7760 (srn0) : xem so 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 phuc cai dat goc (can nhap mat khau).
*#7370925538# (res0wallet) : luu tru bi mat wallet (phai biet mat ma may).
*#67705646# (opr0logo) : xoa logo mang, du ve mac dinh la ten mang cung cap dich vu.
*#7220# (pca0) : kich hoat che do PCCH tiet kiem thoi gian truy cap gprs (tuy vao mang cung cap dich vu).
*#7230# (pcd0) : tat PCCH, may tu khoi dong lai.
*#2640# : hien thi ma bi mat dang su dung.
*#2820# : hien thi bluetooth.
*#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 nguon roi an giu dong thoi cac phim *, 3, goi di va nut tat mo nguon. Cac giu lieu luu tru trongbo nho dien thoai se bi xoa.
(Ma bao ve mac dinh cua Nokia: 12345)
Ma so bi mat may TQ
*#66*# : mo menu.
*#3646633# : mo menu kiem tra loi.
*#0000#ok : chuyen sang tieng Anh.
*#0086#ok : chuyen sang tieng Trung Quoc.
*#0084#ok : chuyen sang tieng Viet.
