The problem
Samsung Galaxy Quantum (SM-A716S, Android 13, One UI 5.1) could not find LG TV 43NU850BENA via Smart View. Galaxy Fold4 could connect after changing the TV network settings (2.4GHz Wi-Fi, IPv6 OFF), but Quantum never could.
Key observations
| Device | Smart View version | Chromecast support | LG TV found? |
|---|---|---|---|
| Galaxy Quantum (SM-A716S) | 8.2.21.26 | No such option | ❌ |
| Galaxy Fold4 | 8.2.26.40 | ON | ✅ |
| Galaxy Fold4 | 8.2.26.40 | OFF | ❌ |
- Google Home and LG ThinQ apps work perfectly from Quantum to the same TV
- Wi-Fi Direct works normally on Quantum
Root cause
The LG TV uses Google Cast (Chromecast built-in) protocol for Smart View discovery, not Miracast. The Galaxy Quantum’s Smart View 8.2.21.26 lacks Google Cast support — the “Chromecast support” toggle present in newer builds is completely absent. Since it’s a system app, APK downgrade/upgrade is blocked.
The Fold4 proof: disabling Chromecast support in its Smart View immediately hides the TV from the device list.
Conclusion
Smart View on Galaxy Quantum (SM-A716S) does not support Google Cast. This is a software limitation of that specific Smart View build, not a network or TV issue. Use Google Home app as a fully working alternative — screen mirroring works with no noticeable latency.