https://eubnara.github.io/tags/galaxy-quantum/Recent content in Galaxy-Quantum on EUB's second brainHugo -- 0.163.3en-usSat, 20 Jun 2026 18:00:00 +0900https://eubnara.github.io/computer-science/smart-view-lg-tv/Sat, 20 Jun 2026 18:00:00 +0900https://eubnara.github.io/computer-science/smart-view-lg-tv/<h2 id="the-problem">The problem</h2> <p>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.</p> <h2 id="key-observations">Key observations</h2> <table> <thead> <tr> <th>Device</th> <th>Smart View version</th> <th>Chromecast support</th> <th>LG TV found?</th> </tr> </thead> <tbody> <tr> <td>Galaxy Quantum (SM-A716S)</td> <td>8.2.21.26</td> <td>No such option</td> <td>❌</td> </tr> <tr> <td>Galaxy Fold4</td> <td>8.2.26.40</td> <td>ON</td> <td>✅</td> </tr> <tr> <td>Galaxy Fold4</td> <td>8.2.26.40</td> <td>OFF</td> <td>❌</td> </tr> </tbody> </table> <ul> <li>Google Home and LG ThinQ apps work perfectly from Quantum to the same TV</li> <li>Wi-Fi Direct works normally on Quantum</li> </ul> <h2 id="root-cause">Root cause</h2> <p>The LG TV uses <strong>Google Cast (Chromecast built-in)</strong> protocol for Smart View discovery, not Miracast. The Galaxy Quantum&rsquo;s Smart View 8.2.21.26 lacks Google Cast support — the &ldquo;Chromecast support&rdquo; toggle present in newer builds is completely absent. Since it&rsquo;s a system app, APK downgrade/upgrade is blocked.</p>