How to attend an urgent call when your mobile battry has no charge

 when your  mobile battry is low and you have  an important call and you want ta attend it   and you don't have a c harger". Nokia instrument comes with a reserve battery. To activate the battery, the key-in *3370# your cell will restart with this reserve and your instrument will show a 50% increase in battery. This reserve will get charged when you charge your mobile next time..