I have f41Reply about yours,F series

Hey guys, hope u all are fine ,I thought to ask about yours opinion about #f41 battery life, because I don't know that my battery is working at its peak or very good or OK after one year of heavy usage.I charge my phone 90% from 30%, means I charge ...

Can we check that how may 0 to100% charge we have done??Reply how to do so..

Is goodlock available in all samsungs phone I want to customize my phone its f41

Can louder sound damage the speakers