Sony Ericsson T20
MENU tecnichal Info[type] >*<<*<* Displays :1] Info service1] Info SW2] Info hardware3] SIMlock4]setup
2] Service setup1] Contrast 3]Service Test1] Display2]Leds3]Keyboard4] ringer5] Vibration6]Headset7] Microphone8]Clock4] Names ListMENU info[Type] >*<<***<<*<* menu Tecnichal infoSW vers. and name list>*<<**<> are the right and left menu's keys Ericsson T18s/T10/A1018s >*<<*<* softwareCXC125065 Internal product codePRG970715 1515 Software version and SW rev.<* CLR <><**<> are the right and left menu's keys!!!><**Control /Enable SIM Lock!!! Ericsson R310 Technical Info : >*<<*<*Options :1) service Infoinfo SoftwareSimlockConfiguration 2) Service TestDisplayLed/IlluminationKeyboardringerVibrationHeadsetMicrophoneClock3)Text's name ListInfo personal : >*<<**< SIM Locking ( 8 digits' code ) ( it could harm your phone )1) Network2) Subnetwork3) SP4) Corporate
Access menu without Sim card To access to the menu in your phone without having a card inside do the following: type **04*0000*0000*0000# When display say "Wrong Pin" press NO and you have access to the all menus: Info, Access, Settings, Calculator, Clock, Keylock On?, Mail, Phone book. NOTE if you try this on your phone may stop at Keylock On? menu and you´ll have to take your battery out to turn the phone on again. And this will not care about Phone lock!
A way to (un)lock your cell phone on to the network(subset): 1. Press <**<>