Battery upgrade possible?

[ts013]

@marinos4 actually this is not a battery upgrade. The firmware has got optimized settings for saving energy so it lasts longer (whereas I don't think that it will really last 30% longer)

[William520]

Imagine your cell battery is very low. To activate, press the keys
*3370# Your cell will restart with this reserve and the instrument will
show a 50% increase in battery. This reserve will get charged when you
charge your cell next time.

I've heard this from my friend,but not sure about it.Thoughts?:confused:

[davie1888]

Imagine your cell battery is very low. To activate, press the keys
*3370# Your cell will restart with this reserve and the instrument will
show a 50% increase in battery. This reserve will get charged when you
charge your cell next time.

I've heard this from my friend,but not sure about it.Thoughts?:confused:

tried this, but it gives network problem