Please bote the below given guide lines it will help us
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1) Emergency number

The Emergency Number worldwide for Mobile is 112.

If you find yourself out of coverage area of your mobile network and
there is an emergency, dial 112 and the mobile will search any existing
network to establish the emergency number for you, and
interestingly...this number 112 can be dialed even while the keypad is
locked. Try it out. [May be it will connect to police station]

2) Locked the keys in the car and your car has remote keys??

This may come in handy someday. Good reason to own a mobile phone: If
you happen to lock your keys in the car and the spare keys are home,
call someone on your mobile phone. Hold your mobile phone about a foot
from your car door and have the other person at your home press the
unlock button, holding it near the phone on their end. Your car will
unlock. Saves someone from having to drive your keys to you.

Distance is no object. You could be hundreds of miles away, and if you
can reach someone who has the other 'remote' for your car, you can
unlock the doors (or the boot).

3) Hidden Battery power

Imagine your 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, press the keys *3370# Your battery will restart with this
reserve and the instrument will show a 50% increase in battery. This
reserve will get charged when u charge your phone next time

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