If you own any of the devices in the Sony Xperia Z2 and Z3 series, then you will be well aware that the latest firmware release for these handsets (23.4.A.1.200) did not show up at all in XperiFirm. XperiFirm does not show firmware that has been released over-the-air (OTA) only, but this was different as many people were updating their handsets through Sony’s PC Companion software.
Despite this issue with the Xperia Z2/Z3 series, other handsets were seeing the latest firmware builds through XperiFirm – such as the recent Xperia M4 Aqua update. So why did XperiFirm suddenly stop working for certain handsets? Well it appears that Sony Mobile is now using a new API for the distribution of firmware for select models. Therefore, there are effectively two servers where Xperia firmware is now being ‘fetched’ from.
Thankfully, XperiFirm XDA-developer IaguCool (Igor Eisberg) managed to get round this issue with the help of others at XDA. XperiFirm version 4.8.0 now scans both Sony servers for new and old firmware, which means the loading of firmware for each Xperia variant is slightly slower than previous XperiFirm versions.
The latest version of XperiFirm once again fully supports the Xperia Z2/ Z3/Z4 series. However, it also adds support for newer models such as the Xperia C5 Ultra, M5 and Z5 series, which now exclusively use this new Sony server for firmware updates. It’s great to see XperiFirm fully compatible with all Sony Xperia models as it’s a truly invaluable tool for any Sony Xperia owner. If you want to download the latest XperiFirm build, hit the source link below.