This experimental software allows you to flash firmwares acquired through XperiFirm to Sony phones including and newer than the XZ Premium.

Usage

• Place the newflasher executable into the firmware folder (usually created by XperiFirm)
• Run Newflasher. Everything inside the folder will be flashed, so remember to remove files you don't want on your device beforehand.

Build (native)

Install gcc, make and development versions of zlib and expat. On Debian-based systems such as Mint and Ubuntu, this means:

sudo apt-get install gcc libexpat-dev libz-dev make

On Darwin you need to install libusb-1.0, this means:

brew install libusb

Download, build and install, assuming that ~/bin is in $PATH:

git clone https://github.com/munjeni/newflasher.git ~/.local/share/newflasher
make -C ~/.local/share/newflasher
ln -s ~/.local/share/newflasher/newflasher ~/bin

Build (cross, static)

make newflasher.[exe/x64/i386/arm32/arm64/arm64_pie], exe referring to a Windows build, the rest being for Linux Android and Darwin.

Discussion

XDA Thread.