Mobile's Must Known Tricks and Tips II

Today i am posting some secret codes for nokia phones.

 Codes & their respective Action


*3370# -- It activates Enhanced Full Rate Codec (EFR) i.e. it enhances the max sound of

your speaker.

#3370# -- Deactivate Enhanced Full Rate Codec (EFR).

*#0000# -- Check nokia phone software version.

*#9999# -- Check nokia phone software version if *#0000# does not work.

*#2640# -- Displays the current phone security code.

*#30#  -- Lets you see the private number.

*#06#  -- For checking the International Mobile Equipment Identity in short imei no.

press and hold # -- switch between lines 1 and 2.

*#7370# -- Format phone by Restoring factory settings (security code needed)

*#7780#  -- Restore factory settings


Note: “Some of these codes are really dangerous so please try them if you know about

them or if you can deal with them.”

Also read Mobile's Must Known Tricks and Tips I