The firmware update 12070 fixed Battery issue but introduced volume bug in certain lumia devices. Now this follow-up software update 12072 which was developed first for Vodafone Australia customers seems to not only fix the volume bug but also beings some improvement in camera settings and removes flickers from images and videos. Check the above screenshot for more. This update is not available on Nokia servers as of now, if you are impatient enough, you can use CAB files to update your device manually, though the risk is yours only.
Links to Vodafone blog for the update given below.
Here is the link to the CAB update file (thanks to cYBERdEL). Happy downloading!