Sony has been making a major effort to open up its devices to third party ROM development and has now uploaded a new set of 5.1 Lollipop AOSP binaries for the company’s first 64-bit devices – the Xperia Z3+, Xperia Z4 Tablet and Xperia Z4 Tablet WiFi.
Sony has also uploaded a repository for the Xperia M4 Aqua, which is also a 64-bit phone, but the handset is not officially supported right now as it cannot be unlocked at this point in time. All of these Xperia devices are based on Qualcomm’s Snapdragon 810 SoC, which is built from four 64-bit ARM Cortex-A57 and four Cortex-A53 CPU cores, except for the M4 Aqua, which is based around a mid-range octa-core Snapdragon 615.
For developers and end users, this means that the custom ROM community can now more easily start working away on their customized AOSP based creations for these devices. However, Sony has stated that there may be a few stability issues and some important functions may be disabled with these builds.