NOKIA SECRET CODES


Here is some useful nokia secret codes

Increase GPRS speed

*#3370#-Enhanced Full Rate Codec(EFR) activation.Increase signal strength ,better signal reception.It also help if you want to use GPRS and the service is not responding or too slow.Phone battery will drain faster though.

*#3370*-(EFR) deactivation.Increase battery life by 30% because phone receives less signals from network.

*#4720#-Half Rated Codec activation.

*#4720*-Half Rated Codec deactivation.

View IMEI number

Dial *#06#    IMEI number is displayed on the screen.

Reset to factory settings *#7780#

Clear the LCD display(operator logo) *#67705646#

To view software version *#0000#

Sim click allowed status *#746025625#

Shows if Sim have restrictions #pw+1234567890+1#

Takes you to a secret menu where you find some of informations shown below *#92702689#

1.Displays Serial number

2.Displays year and month of manufacture

3.Displays(if there) the date where the phone was purchased

4.Displays the date of last repair-if found(0000)

5.Shows life timer of phone(Time passes since last start)

Waite for more secret codes.Enjoy :)

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