Open Odin and click the (or AP ) button to select the extracted .tar.md5 root file. Click Start . The phone will reboot once finished.
A typical root zip for this device, specifically the CF-Auto-Root-kltecan-kltevl-smg900w8.zip , includes: Download g900w8 root zip
: After the reboot, check your app drawer for the SuperSU app or download Root Checker from the Play Store to confirm success. Open Odin and click the (or AP )