03 · TroubleshootingFour things that go wrong, and the fix.
Self-help · no support ticket needed
If the install is blocked at the Unknown sources toggle, the device is on Android 7 or earlier. Update the OS first, then retry. If the toggle is greyed out, the device is managed by a parental control or an enterprise profile.
If the package name on the install prompt differs from yono.games.app, stop immediately and open a ticket at /support/. A different package name usually means a repackaged APK from a third party.
If the APK downloads but the install completes and the icon does not appear, restart the launcher. Some launchers cache the app drawer for several minutes after a new install.
If the OTP does not arrive within 60 seconds, check the mobile number and the country code. The brand is operated from India and the OTP routes through an Indian SMS gateway; international numbers may take longer or may be rejected by the gateway.