Unpack Android system.new.dat.br

pacman -S brotli p7zip
curl -L -o /usr/local/bin/sdat2img.py https://github.com/xpirt/sdat2img/raw/master/sdat2img.py && chmod +x sdat2img.py

brotli -d system.new.dat.br
sdat2img.py system.transfer.list system.new.dat system.img
7z -y -bsp0 -bso0 x system.img