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+ Doi voi nokia
*3370# (efr0) : kich hoat che
do EFR, 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 trong bo nho dien
thoai se bi xoa.
(Ma bao ve mac dinh cua
Nokia: 12345).
+ Doi voi may china
*#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.
+ Doi voi máy sonyeriction
>*<<*<* : 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.
+ Máy 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.
+ Máy samsung
*#9998*help# : truy cap menu
tro giup.
*#7465626# : tinh trang khoa
may.
*#7337# : unlock cho dien thoai
doi moi. *2767*java# : khoi tao java, xoa
java dang co.
*2767*media# : xoa nhac, hinh.
*2767*wap# : khoi tao lai thong
so wap.
*2767*cust# : tao lai phan mem tu EEPROM.
*2767*full# : tra lai tinh trang
xuat xuong.
*#9998*java# : menu cac tinh
nang tuong thich java.
*#9999*0# : che do man hinh. *#9999# : phien ban firm ware.
*#0837# : thong tin cau truc
phan mem.
*#8888# : phien ban phan cung.
*#9998*746# : thong tin ve sim.
*#9998*778# : hien thi bang dich vu sim.
*#0523# : do tuong phan.
*#0842# : chuyen sang che do
rung.
*#0288# : thong tin tinh trang
pin. *#8999*228# : thong so ly thyet
cua pin.
*#9998*377# : xem danh sach
cac loi.
*#9998*782# : hien thi lich va
dong ho bao thuc. *#9998*585# : thong tin vung
bo nho cam truy cap (NNM).
*#3243948# : tat tinh nang
chong nhieu am thanh.
*#0001# : hien thi thong so ve
ket noi serial. *0001*s*f*t# : thay doi cac
thong so cua ket noi serial (s =
toc do; f = 0, 1; t = 0, 1).
*#9125# : bieu tuong mat cuoi
khi sac pin.
*#8999*246# : tinh trang ung dung.
*#8999*289# : thay doi tan so
chuong bao thuc.
*#8999*324# : man hinh sua loi
(dung cho KTV).
*#8999*364# : bat tinh nang theo doi he thong WATCHDOG -
mot ung dung java.
*#8999*427# : xem thong tin do
WATCHDOG cung cap.
*#8999*523# : thay doi tuong
phan man hinh LCD. *#8999*636# : tinh trang bo
nho.
*#8999*764# : dung luong cua
sim. Mot cach kiem tra xem ban
dang dung super sim hay khong
(super co dung luong 64k). *#8999*842# : kiem tra tinh
nang rung cua dien thoai.
*#8999*862# : hien thi mot so
tinh nang khi dung dien thoai voi
carkit.
*#8999*999# : lan kiem tra cuoi cung.
*#8999*9266# : mot man hinh
sua loi khac.
*#8999*638# : hien thi thong tin
ve mang cua nha cung cap dich
vu ma ban dang su dung. *#9998*5646# : thay logo khoi
dong.
*#9998*76# : xem ma so san
pham.
*#9998*968# : giai dieu dang
duoc dung cho tinh nang bao thuc.
(Ma bao ve mac dinh cua
Samsung: 1111).
+ Máy philip
*#8377*# : hien thi phien ban
phan mem.
*#3333*# : hien thi danh sach bi
khoa.
*#7489*# : hien thi ma bi mat.