Nokia Tips & Tricks - Tips & Tweaks

Nokia Tips & Tricks - Tips & Tweaks: "1 Imagine ur cell battery is very low, u r expecting an
important call and u don't have a charger.
Nokia instrument comes with a reserve battery. To
activate,
key is '*3370#'
Ur cell will restart with this reserve and ur instrument
will show a 50% incerase in battery.
This reserve will get charged when u charge ur cell
next
time.
*3370# Activate Enhanced Full Rate Codec (EFR)-Your phone
uses the best sound quality but talk time is reduced by approx.
5%
#3370# Deactivate Enhanced Full Rate Codec( EFR)

*#4720# Activate Half Rate Codec - Your phone uses a
lower
quality sound"