Sony ericsson mobile Tricks

 Sony Ericsson Secret Menu:
   > * < < * < *
  > means press joystick or arrow keys to right
  < means press joystick or arrow keys to left
  1. push joy stick to RIGHT once
  2. press *
  3. push joy stick to LEFT twice
  4. press *
  5. push joy stick to LEFT once
  6. press *

  The Service Menu will appears containing following information !
  1. Service Info
    a. Software Version
    b. SIMlock
    c. Configuration
  2. Service Setting
    a. Contrast
  3. Service Test
    a. Display
    b. LED/Illumination - *This test is very cool
    c. Keyboard
    d. Buzzer
    e. Vibrator
    f. Earphone
    g. Microphone
    h. Real Time Clock
    i. Joystick Counter*

  Lockstatus: < * * <

  Shortcut to last dialed numbers: 0#

  Shortcut to sim numbers: On main menu type a number and press #

  If you change the language from default to any other language,   then it may be difficult to switch to default language.
  The shortcut is very simple. Just press < 0000 >
  < stands for left arrow button or joystick and > stands for right arrow button or joystick.

  Secret Games: Snake on the T68 
  Go to Erix and then on the main screen press 123 and you will be taken to the game.

  Secret Message:
  On Tetris on the main screen when the blocks are falling press 397 and a message will appear. 

Motorola Mobile Tricks

 Code to lock keys. Press together *7

  Note: [] (pause) means the * key held in until box appears.
  Select phone line - (use this to write things below the provider name):
  [] [] [] 0 0 8 [] 1 []

  Add phonebook to main menu:
  [] [] [] 1 0 5 [] 1 []
  Add messages to main menu:
  [] [] [] 1 0 7 [] 1 []

  Copy SIM memory (phonebook menu):
  [] [] [] 1 0 8 [] 1 []

  Eng Field options (main menu):
  [] [] [] 1 1 3 [] 1 []

  Slow (Frequency of search menu):
  [] [] [] 1 0 1 [] 1 []

  Medium (Frequency of search menu):
  [] [] [] 1 0 2 [] 1 []

  Fast (Frequency of search menu):
  [] [] [] 1 0 3 [] 1 []

  Enable EFR:
  [] [] [] 1 1 9 [] 1 []

  Function :
  [] [] [] # # # [] 1 []

  Change pin:
  [] [] [] 0 0 4 [] 1 []

  Unblocking using the "puk" number:
  [] [] [] 0 0 5 [] 1 []


  You can change GSM frequencies to 900/1800 by entering the enginnering model.
  Following the below steps:
  enter menu and press 048263* quickly,
  then you will enter the secret engineering menu under "Opcode"
  input 10*0*3 for GSM 900
  10*0*4 for GSM 1800
  10*0*5 for GSM 1900
  10*0*6 for dual band GSM 900/1800
  10*0*7 for dual band GSM 850/1900

  To add extra message space 4 your Motorola C350 C450 C550 or C650,
  press menu button, press 048263* quickly, then on the popup menu enter 47 press ok.
  press 50 and ok.press 1 ok.press 64 ok.press 1 ok.press 186 and ok.
  You will receive an extra 50 msgs memory space.Switch phone off and back on. 

Nokia mobile Tricks

 To check the phones Software revision for Nokia Mobile.
  On the main screen type *#0000#

  To enter in the secret menu in Nokia Phone.
  On the main screen type *#92702689# [*#war0anty#]
  It will take you to a secret menu where you may find some of the information below:
  1. Displays Serial Number.
  2. Displays the Month and Year of Manufacture
  3. Displays (if there) the date where the phone was purchased (MMYY)
  4. Displays the date of the last repair - if found (0000)
  5. Shows life timer of phone (time passes since last start)

  To restore Factory Settings for Nokia mobile
  *#7780# reset to factory settings.

  Taking picture without getting noticed.
  Turn on/off the "click" sound made by the camera by selecting the 'Silent' profile or by turning warning tones on/off.

  Hiding your Mobile/ Cellphone Number
  Go to: Menu > Tools > Settings > Call > Send My Caller ID >
  'Yes', 'No' or 'Set By Network' to follow the default settings of your home network.
  It works only with very few network who provide you facility of “Private Number”

Samsung mobile Tricks

  If you have downloaded corrupted or incompatible Java midlets or other media,
  which are causing problems with the phone, try this
  *2767*JAVA# Java Reset and (Deletes all Java Midlets)
  *2767*MEDIA# Reset Media (Deletes All Sounds and Pics)
  *2767*WAP# Wap Reset
  *2767*CUST# Reset Custom EEPR0M
  *2767*FULL# Reset Full EEPR0M (Caution)
  For example : *2767*JAVA# would be keyed in as *2767*5282#
  Note : Not all codes will work with SGH-C100.

  The master reset code is:
  #*7728#
  This will not delete anything from your
  mobile phone, but set each and eveything to its
  default/standard setting as it was on the time of purchase.

  To unlock your phone put a sim from another company,
  now type *#9998*3323# it will reset your phone. Push exit and then push 7,
  it will reset again. Put your other sim in and it will say sim lock,
  type in 00000000 then it should be unlocked. Type in *0141# then
  the green call batton and it's unlocked to all networks.
  This code may not work on the older phones and some of the newer phones.
  If it doesn't work you will have to reset your phone without a sim in it
  by typing *#2767*2878# or *#9998*3855# (not tested)

  Other Samsung Codes
  *#9998*4357# Help Menu
  *#9998*5282# Java menu (GRPS/CSD settings for JAVA server)
    *#9999#0# Monitor Mode
  *#9999# or *#9998*9999# Software Version
  *#8888# or *#9998*8888# Hardware Version
  *#9998*746# or *#9998*0746# or *#0746# Sim Infos
  *#9998*523# or *#9998*0523# or *#0523# Display Contrast
  *#9998*842# or *#9998*0842# or *#0842# Vibration On (until you push OK)
  *#9998*289# or *#9998*0289# or *#0289# Buzzer On (until you push OK)
  *#9998*288# or *#9998*0288# or *#0288# Battery & Field Infos
  *#9998*377# or *#9998*0377# Error log
  *#9998*778# or *#9998*0778# or *#0778# Sim Service table
  *#9998*782# show date and alarm clock
  *#8999*638# show network information
  *#9998*5646# change operator logo at startup
  *#9998*76# production number
  *#9998*968# view melody for alarm
  *#9998*585# Non-Volatile Memory (NVM)
  *#3243948# Digital Audio Interference Off
  *#32436837# Digital Audio Interference On