J903 systems are available for nonavx, AVX, and AVX2 hardware (see Guides/AVX). The initial installation is non-AVX and finishing the installation steps will upgrade to AVX or AVX2 as appropriate.
Download and Install
broken links in this section indicate that install package is not yet available
Most Windows users should use All-in-One.
Linux users who want a debian package should use Debian.
Android users should use apk.
All other users should use zips.