
To check the IMEI (International Mobile Equipment Identity) Type-
 *#06#
 Information you get from the IMEI-
 XXXXXX  XX  XXXXXX  X
 TAC      FAC     SNR      SP
 TAC = Type approval code
 FAC = Final assembly code
 SNR = Serial number
                                     SP    = Spare
(=> means press joystick, arrow keys or jogdial to the right and <= means left.)
Sony Ericsson  | 
|
| 
 Secret Menu :  | 
 => * <= <= * <= *  | 
| 
 IMEI Number  | 
 *#06#  | 
| 
 Lockstatus  | 
 <= * * <=  | 
| 
 Last dialed numbers  | 
 0#  | 
| 
 Shortcut SIM numbers  | 
 Type a number and press #  | 
| 
 To reset to default language  | 
 <= 0000 =>  | 
| 
 Samsung  | 
|
| 
 Software version  | 
 *#9999#  | 
| 
 IMEI number  | 
 *#06#  | 
| 
 Serial number  | 
 *#0001#  | 
| 
 Battery status- Memory capacity  | 
 *#9998*246#  | 
| 
 Debug screen  | 
 *#9998*324# – *#8999*324#  | 
| 
 LCD contrast  | 
 *#9998*523#  | 
| 
 Vibration test  | 
 *#9998*842# – *#8999*842#  | 
| 
 Alarm beeper – Ringtone test  | 
 *#9998*289# – *#8999*289#  | 
| 
 Smiley  | 
 *#9125#  | 
| 
 Software version  | 
 *#0837#  | 
| 
 Display contrast  | 
 *#0523# – *#8999*523#  | 
| 
 Battery info  | 
 *#0228# or *#8999*228#  | 
| 
 Display storage capacity  | 
 *#8999*636#  | 
| 
 Display SIM card information  | 
 *#8999*778#  | 
| 
 Show date and alarm clock  | 
 *#8999*782#  | 
| 
 The display during warning  | 
 *#8999*786#  | 
| 
 Samsung hardware version  | 
 *#8999*837#  | 
| 
 Show network information  | 
 *#8999*638#  | 
| 
 Display received channel number and received intensity:  | 
|
Nokia  | 
|
| 
 To check the phones Software revision type  | 
 *#0000#  | 
| 
 service menu  | 
 *#92702689# (*#WAR0ANTY#)  | 
| 
 To check whether your SIM Card supports clock stopping type  | 
 *#746025625# (*#SIM0CLOCK#)  | 
| 
 To activate EFR (Enhanced Full Rate) Enter the code (Call Quality)  | 
 *3370# (This improves call quality  |