Here’s a list of some useful hidden codes for the NOKIA cell phone users. Some codes are useful to get lots of hidden information about your cell phone like- IMEI no, Firmware version etc. and some helps to enhance inbuild features like sound, pictures, videos etc. Some codes are universal that works with every model but some works with particular model. To use any codes simply type the code on the main screen and dial. Check all the following:
*#06# ====>> To know the IMEI (International Mobile Equipment Identity) code
*#67705646# ====>> To clear the operator logo
*#92702689# ====>> To know the phone’s release date from factory.
*3370# ====>> To activate the Enhanced Full Rate Codec (EFR) for best sound quality but talk
time will be reduced.
time will be reduced.
#3370# ====>> To deactivate the EFR
*#4720# ====>> To activate Half Rate Codec, will decrease the sound quality but talk time will increase.
*#4720* ====>> To deactivate the Half Rate Codec
*#0000# ====>> To Display the phone’s software version.
*#9999# ====>> To display the phone’s software version (If *#0000# is not work)
*#92702689# ====>> This code will give you a menu to get information like- Serial number, date of manufacture, date of last repair, Life timer since last start.
*#2820# ====>> To show Bluetooth Device address in case of bluetooth connectivity problem
*#73# ====>> Reset the phone’s timers and all games scores.
*#2640# ====>> To display phone’s security code in use.
Default security code is ====>> 12345
*#7780# ====>> Restore the factory setting, this will help in major problems while experimenting with phones, this will bring you to the default factory setting.
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