Volume controls don't work

[SERIAL_CHILLER]

After the recent software update as of 25.04.17 (I'm guessing android Nougat 7.1.1 update) the volume controls on the right no longer do the job. I have to go into Settings > Sound to change the volume now. Please help.

[Jake-SonyXperia]

Hi @SERIAL_CHILLER,

Unfortunately, there are an array of things that could cause this type of problem, the fact this was resolved with a software repair tells me this was likely third party orientated or possibly a bad install of the update on the device.

I wish I could advise what exactly caused the problem, however, there are just too many variables.

[SERIAL_CHILLER]

I see. Thanks though