Hello everyone is update k bad mere galaxy A55 phone ki SPEAKER VOLUME kafi kam ho gayi hai aisi konsi update bhej dete ho jis se ache bhale phone ki aawaj kharab kar di please resolve this issue 

My Samsung Galaxy A55 battery is draining very fast from last update when i charge 100% within a minute its down in 99% and my phone speaker volume is also decreased PLEASE HELP ME