Yesterday we told you about some issues with the latest update for the Xperia Z5, Xperia Z3+ and the Xperia Z4 Tablet. Their devices were sluggish, and problems like high temperatures crashes and reboots appeared. Sony acknowledged the problem and has already issued a fix. The official statement from Sony reads: Sony Mobile is committed to providing the highest standard of product quality and customer service for all of our products. A software update (version 4.7.B.1.3) has been released for the Movie Creator application, available in Google Play, which fixes a performance issue...
Source: http://www.gsmarena.com/sony_issues_a_fix_on_xperia_z5_performance_issues-news-26537.php