Using the latest release is recommended for most cases. EHS 2.6 includes a single .apk for installing to all devices supported by v2.6. Download packages prior to EHS 2.5 include separate .apk packages for Jelly Bean and KitKat, plus an optional installer .apk that detects the target operating system and installs the correct EHS version automatically.
Visit the Enterprise Home Screen download page to download Enterprise Home Screen 2.6.
After download, proceed to the EHS 2.6 Setup page.