How to reinstall chromium in Jetson tx2

Hi there,
I downloaded the latest built arm64 chromium browser and tried installing it to my machine and break the existing chrome. How can I reinstall the stock chromium without reinstall the jetpack? I tried apt-get install chromium browser and didn’t work. Anyone had any advice? Thanks again!

apt-get purge chromium-browser
apt-get install chromium-browser

Also make sure universe multiverse repos are enabled at /etc/apt/sources.lists

universe multiverse repos are enabled at /etc/apt/sources.lists
Thanks for this vital bit advice and solved all my problems. Is the lists defaulted to be unselected? I still can install other software without touching the list so I did not think of the issue of sources. Thanks again Andre you are the best.