Press *3370# to access reserve mobile phone battery power

Is this true ?

You can press *3370# to access reserve mobile phone battery power.


Apparently the code *3370# activates the Nokia Enhanced Full Rate Codec (EFR), this means that the Nokia cell phone has better sound quality, but with a shorter battery life.

To disable this (EFR) feature, the code is *#4720# which reduces voice quality but enhances battery life.


211.1 - 604,689
Scroll down for Comments
0 0 votes
Article Rating
Notify of

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Inline Feedbacks
View all comments