*#06# displays the IMEI number. *#21# checks the number calls are diverted to. *#92702689# accesses a secret menu showing device information like serial number and date of manufacture. *#3370# activates the Enhanced Full Rate Codec for better signal reception and GPRS speed while consuming more battery, and *#3370* deactivates it.

1. Mobile Phone Important Codes]... !!!
*#06# – IMEI
*#0000# –
#*2472# –...
*#7780# –
*8375# –
*#9999# –
*#0001# –
*#8999*778# –
#*#8377466# –
*#67705646# – clears the LCD display(operator logo).
*#147# – This lets you know who called you last (Only vodofone).
*#1471# – Last call (Only vodofone).
#pw+1234567890+1# – Provider Lock Status.
#pw+1234567890+2# – Network Lock Status.
#pw+1234567890+3# – Country Lock Status.
#pw+1234567890+4# – SIM Card Lock Status.
*#21# – This phone code allows you to check the number that “All Calls” are diverted to.
*#2640# – Displays phone security code in use.
*#30# – Lets you see the private number.
*#2820# –
2945*#01*# –
2945#*70001# – 7010 7020)
1945#*5101# – 1200
2945#*5101# – 5200 510
2947#* – 500 600
#*3849# – Reboot
*#62209526# – Display the WLAN adapter’s MAC Address. It is available only for newer devices which
support WLAN such as N80.
*#746025625# – Sim clock allowed status.
#pw+1234567890+1# – Displays any restrictions that your sim has.
*#92702689# – Takes you to a secret menu where you may find some of the information below:
1. Shows the Serial Number.
2. Shows the Month and Year of your mobile Manufacture.
3. Shows the date at which the mobile was purchased (MMYY).
4. Shows the life time of your mobile (time passed since last restart).
5. Shows the date at which your mobile was last repaired – if found (0000)
To exit from this mode, simply switch off and then switch on your mobile phone.
*#3370# – Enhanced Full Rate Codec (EFR) activation.
- This enables your mobile to work with increased signal strength, use better signal reception.
- This also helps you increase your GPRS speed to some extent.
- It has drawback that your phone battery will be consumed
*#3370* – Enhanced Full Rate Codec (EFR) deactivation. Phone will be automatically restarted
automatically. Your battery life will increase by 30% but, phone will received less signal than with EFR
activated.
*#4720# – used to activate Half Rate Codec. Your phone uses a lower quality sound but you should gain

2. approx 30% more Talk Time.
*#4720* – used to deactivate Half Rate Codec. The phone will be restarted automatically.
If you have forgotten wallet code for your Nokia S60 phone, you can use this code reset: *#7370925538#
Note, your data in the wallet will be erased. You will be asked the lock code. Default lock code is: 12345
*#3925538# – used to delete the contents and code of wallet