Official system updates are distributed over-the-air (OTA) rather than as standalone manual download files. To check for or install this update on a compatible device: : Open Settings > System > System Update .
A: No. Upgrade to 10.4.2 first, then to 10.5.1, then to 10.6. Jumping major versions corrupts the configuration database. xos 10.6 update download
If you are looking for the XOS 10.6 "look" rather than a full OS upgrade, or if your device doesn't support the full OS update, you can manually update the XOS Launcher through the Google Play Store or trusted APK sources like APKMirror . then to 10.5.1