Sony Xperia Z5 family gets firmware update, update weighs 400MB. The update brings Security updates, the Android security patch has been updated to 1 September 2017 (from 1 June previously). Battery draining and heating issues are fixed. The Xperia Z5 family which includes the Xperia Z5 Compact and the Xperia Z5 Premium , as well as the Xperia Z3+ and Xperia Z4 Tablet are moved from build number 32.4.A.0.160 to 32.4.A.1.54. Still we don’t have correct information what are the other fixes are updated in this update.