I am not able to mute Camera shutter sound I have turned off the shutter sound from camera settings I turn the phone to silent but the camera sound just born go off its really annoying don’t buy this phone because number 1 battery charging takes 627 hours to fully charging number 2 OTG sports unavailable with his phone number 3 quality of the camera is very poor for front camera as well as the number 4 machine automatically gets switched off several times during software update voice during first start a WeChat message. Display of the phone is not up to Mark. Battery backup is not good.