Sony Mobile has temporarily suspended the roll out for the update to Android 7.0 Nougat for the Xperia Z5 family of devices, together with the Xperia Z3+ and Xperia Z4 Tablet. The update, which has only just been made available earlier this week, arrived with build number 32.3.A.0.372. However, Sony have removed the download from its servers today and made the following statement to the source website: "We were made aware of reports from some users experiencing inconsistencies related to audio playback via third-party apps and SD card encrypted data read performance, after upgrading to Android 7.0, Nougat. We've identified the root cause and are aiming to provide corrective firmware and re-commence the rollout as soon as possible."
Sony, in common with many other manufacturers, releases a new software update for devices in stages for precisely this reason. The update is made available for a relatively small number of customers during the early days. These early adopters will download and install the software release and the company wait and see if there are issues uncovered by the software update, which its extensive beta testing had not identified. The waiting process can be anywhere from a day to several. If the initial batch of customer devices do not experience an issue, the company allows more devices to receive the update but will again monitor the situation. Depending on the scale of the software update, a given manufacturer may release software updates in a number of comparatively small stages before opening up the new software to all customers. It means that should an issue be detected, the company will have fewer upset customers on its hands. This is what has happened with Sony: it would appear that not all customers have experienced the "inconsistencies" the company writes about during music playback through third party applications. It's encouraging that Sony have discovered the cause of the issue and are working to fix the problem, so as to push out a fix for those customers who have already followed the update and of course resume the widespread software update process.
There appear to be five models impacted by Sony's decision to pause the software update. There are three devices in the Sony Xperia Z5 family, the Xperia Z5 Compact, Xperia Z5 and Xperia Z5 Premium, joined by the Xperia Z3+ and the Xperia Z4 Tablet. Customers eager for the update to Android 7.0 Nougat will be hoping Sony will quickly resolve the issue and resume the software update.