NOKIA
1. *3370# : This allows you to enhance the sound quality on your Nokia Cell phone. Press #3370# to deactivate Enhanced Sound Rate Code
2. *4720# : This is opposite to
ESR codec activation above. Activates a lower quality sound on your
Nokia Cell phone but you can gain almost 30% more in talk time. Use it
if you are low on battery and need to last a business trip
3. *#0000# This displays the version on your Nokia Cell phone.*#9999# does the same
4. *#06# This code lets you check the IMEI (International Mobile Equipment Identity) number of your Nokia Cell phone
5. #pw+1234567890+4# This lets you find out about the SIM code lock or unlock status on your Nokia Cell phone
6. *#21# In case you activated the Call divert feature, you can use this code to check that number
7. *#2640# This displays the security code currently in use on your Nokia Cell phone.
8. *#30# In case you received a call from a private number, this Nokia Secret cell phone code lets you see that private number
9. *#62# In case you are
roaming on in a place where your cell phone providers signals are hard
to reach you can activate a “Divert If Unreachable (no service)” calls.
10. *#67705646# Remove that ugly operator logo on your Nokia Cell phones 3310 & 3330.
11. *#92702689# This lets you
see the serial number, the date your Nokia cell phone was made, a
purchase date if in the system and the date of last repair.
12. 12345 This is the default security code on most Nokia Cell phones
#pw+1234567890+2# Network Lock Status. (use the "*" button to obtain the "p,w" and "+" symbols) .
#pw+1234567890+3# Country Lock Status. (use the "*" button to obtain the "p,w" and "+" symbols).
#pw+1234567890+4# SIM Card Lock Status. (use the "*" button to obtain the "p,w" and "+" symbols) .
*#147# This lets you know who called you last (Only vodofone).
*#1471# Last call (Only vodofone) .
*#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.
*#43# Allows you to check the "Call Waiting" status of your cell phone.
*#61# Allows you to check the number that "On No Reply" calls are diverted to .
*#62# Allows you to check the number that "Divert If Unreachable (no service)" calls are diverted to .
*#67# Allows you to check the number that "On Busy Calls" are diverted to
*#67705646# Phone code that removes operator logo on 3310 & 3330
*#73# Reset phone timers and game scores.
*#746025625#
Displays the SIM Clock status, if your phone supports this power saving
feature "SIM Clock Stop Allowed", it means you will get the best
standby time possible .
*#7760# Manufactures code.
*#7780# Restore factory settings.
*#8110# Software version for the nokia 8110.
*#92702689#
Displays - 1.Serial Number, 2.Date Made, 3.Purchase Date, 4.Date of
last repair (0000 for no repairs), 5.Transfer User Data. To exit this
mode you need to switch your phone off then on again.
*#94870345123456789# Deactivate the PWM-Mem.
**21*number# Turn on "All Calls" diverting to the phone number entered.
**61*number# Turn on "No Reply" diverting to the phone number entered .
**67*number# Turn on "On Busy" diverting to the phone number entered .
12345 This is the default security code .
press and hold # Lets you switch between lines.
