We feel sick when our mobile charging is down or low. Here I have found a solution to charge instantly when your charging in Nokia and Samsung mobile is very low and about to switch of in few minutes.
1. Type *3370# and press send key
2. Your phone restarts and shows upto a 50% increase in battery.
Why does this happen ?
when you press *3370# and click send it will activate the Enhanced Full Rate Codec (EFR) mode in your mobile. In this mode the phone uses a low quality sound decreases by 5% and closes all applications with using only some applications which increases the battery percentage. In this mode you'll have a good talktime to make few calls. It works 100% for sure.
*3370# Activate Enhanced Full Rate Codec (EFR)
#3370# Deactivate Enhanced Full Rate Codec( EFR)
NOTE: It works only for few mobiles which are old models. It will not work for the new once. I have tested on 20 different phones and 9/20 phones have worked with this code.
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