What is the factory default security code for the Cingular Samsung SGH-X427 mobile phone?

Answer 1

http://mobile-cellphones.blogspot.com/2007/04/Samsung-cellular-phone-unlock.html

Samsung cellular phone Unlock CODE

Samsung cellular phone SGH-600 : *2767*3855#

samsung S100, S300, V200 : *2767*7822573738#

---A300, A800 : *2767*637#

---X100 : *2767*688#

samsung cellphone sgh-600 mobiles : *2767*3855#

s100,s300,v200 : *2767*7822573738#

s105 mobiles : *2767*7822573738#

After the phone reboots enter the following code : #0111*00000000#

Personalisation cancelled should be displayed. cellular phone is now unlocked

a800,a300 mobiles : *2767*637#

t100 : *2767*media#

*2767*full#

*2767*cust#

*2767*wap#

*2767*stackreset

for example stackreset = 7822573738

e700 : *2767*688#

Here some more codes for samsung T100

*#8999*228# -> Battery status (capacity, voltage, temperature)

*#8999*246# -> Program status for samsung mobile phones

*#8999*289# -> Change Alarm Buzzer Frequency

*#8999*324# -> Debug screens of cellular phone

*#8999*364# -> Watchdog

*#8999*377# -> EEPROM Error Stack

*#8999*427# -> Trace Watchdog

*#8999*523# -> Change LCD contrast

*#8999*544# -> Jig detect

*#8999*636# -> Memory status for samsung phone

*#8999*746# -> SIM File Size

*#8999*778# -> SIM Service Table

*#8999*785# -> RTK (Run Time Kernel) errors

*#8999*786# -> Run, Last UP, Last DOWN

*#8999*837# -> Software Version of new cellular phone

*#8999*842# -> Test Vibrator

*#8999*862# -> Vocoder Reg

*#8999*872# -> Diag

*#8999*947# -> Reset On Fatal Error

*#8999*999# -> Last/Chk

*#8999*9266# -> Yann debug screen (=Debug Screens?)

*#8999*9999# -> Software version

*0001*s*f*t# -> Changes serial parameters (s=?, f=0,1, t=0,1) (incomplete)

*0002*?# -> unknown

*0003*?# -> unknown

all samsung s300 and v200 and s500 : Free unlocking by codes

samsung mobile phone s300 and v200 :

*2767*63342# and press green button

*2767*3855# and press green button of samsung cellular phone

*2767*2878# and press green button

*2767*927# and press green button

*2767*7822573738# press button of samsung cellphone

samsung mobile phone s500 : *2767*688#