Battery calibration may increase your Battery Performance

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-Running the phone battery down completely until the phone shuts off by itself.
-Then remove the battery, wait 10 seconds, insert again, repeat.
-If the phone shuts off again in less than a few minutes you're done.
-Remove battery and hold power button for 1minute, then insert battery and don't -switch on the phone.
-Plug the charger and recharge the battery fully or until the green light is on.
-Then remove battery, hold power button for few seconds, insert it and switch on the phone.


Do this initially once in 3-4months when the phone is new, then once a month after a year to gain maximum battery performance.
Note: There is a very rear chance that this MAY damage your battery. Please bear this in mind if you choose to follow the instructions above.