UpdateAndroidSystemLXCImage

Verify you have the old system.img file, no point updating if you don't need to:

md5sum /data/system.img

Old md5 output: 63997d42cfbd70f59d45142d98872ade

wget https://gemian.thinkglobally.org/system.img.delta
sudo apt-get install xdelta3
xdelta3 -d -s /data/system.img system.img.delta system.img
sudo mv system.img /data/system.img

New md5 output after update: 1b6f07d345cbb9fadca562e788375515