diff --git a/.changeset/fix-870-landing-hero-video-decode.md b/.changeset/fix-870-landing-hero-video-decode.md
new file mode 100644
index 00000000..fadcb770
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+++ b/.changeset/fix-870-landing-hero-video-decode.md
@@ -0,0 +1,5 @@
+---
+"ornn-web": patch
+---
+
+Fix the landing hero video freezing on phones and other devices. The 4K upscale shipped an H.264 Level 6.0 / 5184px-wide asset that exceeds the hardware decoder limits of phones and most laptops, so the hero stayed stuck on the poster frame everywhere except the author's desktop. Reverted the video and poster to a universally-decodable 1080p encode (2592×1080, H.264 High Level 5.0), so the intro now autoplays for everyone.
diff --git a/.changeset/release-notes-20260606.md b/.changeset/release-notes-20260606.md
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@@ -0,0 +1,2 @@
+---
+---
diff --git a/.github/release-notes-20260606.md b/.github/release-notes-20260606.md
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+++ b/.github/release-notes-20260606.md
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+## Fixed
+
+- Landing page intro video now plays on phones and all devices.
+
+## New Feature
+
+- None in this release.
+
+## Changed
+
+- None in this release.
diff --git a/ornn-web/public/ornn-intro-poster.jpg b/ornn-web/public/ornn-intro-poster.jpg
index 663fd2ae..0c69ea16 100644
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diff --git a/ornn-web/public/ornn-intro.mp4 b/ornn-web/public/ornn-intro.mp4
index 023f4295..252b0c0b 100644
Binary files a/ornn-web/public/ornn-intro.mp4 and b/ornn-web/public/ornn-intro.mp4 differ