Sony has always been a standard apart when it comes to helping their smartphone users customize their devices to the way they want it. Sure, they may have locked bootloaders, but Sony will unlock those for you. They’re even moving more into AOSP (Android Open Source Project) territory when the announcement came out that they will be officially allowing custom recovery installation on select Sony Xperia devices.
We did notice that these are the older devices – which include the Sony Xperia Z1, Xperia Z1 Compact, Xperia Z Ultra, Xperia E3, Xperia M2, Xperia T2 Ultra, and the Xperia T3. But these are by no means lame devices, Sony’s commitment to premium hardware has ensured that. Now Sony is enabling recovery mode, something that was not enabled on these devices initially. Entering recovery mode is usually one of the first steps – after gaining root access – to installing custom ROMs and tweaks to your device.
With Sony opening this partition up, more and more Xperia users can install customized after-market software and tools to their devices. You will need an unlocked Xperia device, of course. With that, you can use the official flashing program for Xperia devices to the updated software, and if needed, a new bootloader.
If you are interested in doing this, the complete instructions are found via the source link. Make sure you backup your data before doing any tweaks on your device.
SOURCE: Sony Mobile