Nokia phone codes

To display “p” press “*” three times within one second, To display “w” press “*” four times within one second, To display “+” press twice “*” within less than a second
Code Function
*3370# / #3370# Activate / Deactivate Enhanced Full Rate Codec (EFR) – Your phone uses the best sound quality but talk time is reduced my approx. 5%
*#4720# / *#4720# Activate / Deactivate Half Rate Codec – Yourphone uses a lower quality sound but you should gain approx 30% more Talk Time
*#7220# / *#7230# Enable / Disable PCCCPH support (faster GPRS)
#pw+1234567890+1# Provider Lock Status. (use the “*” button toobtain the “p,w” and “+” symbols)
#pw+1234567890+2# Network Lock Status. (use the “*” button toobtain the “p,w” and “+” symbols)
#pw+1234567890+3# Country Lock Status. (use the “*” button toobtain the “p,w” and “+” symbols)
#pw+1234567890+4# SIM Card Lock Status. (use the “*” button toobtain the “p,w” and “+” symbols)
12345 This is the default security code
*#0000# Displays your phones software version, 1st Line : Software Version, 2nd Line : Software Release Date, 3rd Line :Compression Type
*#9999# Phones software version if *#0000# does not work
*#06# For checking the International Mobile Equipment Identity (IMEI Number)
*#67705646# 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
press and hold # Lets you switchbetween lines
*#7760# Manufacturers code
*#7780# Restore factory settings
*#8110# Software version for thenokia 8110
*#92702689# Displays – 1.Serial Number, 2.Date Made, 3.PurchaseDate, 4.Date of last repair (0000 for no repairs), 5.Transfer User Data. To exit this mode you needto switch your phone off then on again!

As edited, formatted and published by 'Ucheonye Nzubechi