How to Fix No Sound on Prime Video on Your Phone Fast

You press play, the picture starts, the subtitles roll along — and the room stays quiet. Prime Video has a habit of going silent in a way that looks like a broken phone. The most common cause is the one people check last: the app is playing the wrong audio track.

You Might Be Listening to the Wrong Audio Track

Many Prime Video titles offer several audio tracks, and the app sometimes picks one your phone can’t play — a 5.1 surround track, a Dolby track, or the English Audio Description track, where a narrator describes the action. If that track is selected by mistake, you’ll hear narration over silence, or nothing at all.

While the video is playing, tap the screen and look for the speech-bubble icon, or “Audio & Subtitles”. Under Audio, check what’s selected — if it says 5.1, Surround, Dolby, or Audio Description, switch to plain English or Stereo. Restart the video after changing the track.

Now play a different title — if one has sound and another doesn’t, the problem is that title’s audio track. If only one track on one title is broken, you can report it to Amazon — but for tonight, just switch tracks and watch.

The Player’s Own Mute Button

Prime Video has its own volume and mute behaviour, separate from your phone’s volume buttons, so check the player itself first.

While a video is playing, tap the screen to show the controls and look for the speaker icon. If it shows a slash through it, tap it to unmute. Then press volume-up during playback — on Android, tap the three dots under the slider and confirm the media volume. On iPhone, check the side silent switch and open Control Center to confirm the volume slider. Make sure Do Not Disturb or a Focus mode isn’t silencing media audio, either.

If the speaker icon is fine and the volume is up, try turning subtitles off temporarily — a subtitle glitch can tangle with the audio track.

Streaming Quality Can Starve the Sound

On a weak connection, Prime Video can drop the stream so low that the video keeps moving while the audio cuts out. The fix sits in a setting most people never open.

In the Prime Video app, go to Settings, then Stream & Download, then Streaming Quality. If it’s set to the highest option and your connection is patchy, the app may be pushing more data than your connection can carry. Drop it a notch and replay the title — if the sound steadies, your connection was the bottleneck. If you’re on mobile data, try Wi-Fi instead.

A restart helps too — force-close Prime Video, reopen it, and play a title you know has sound.

Downloads That Lost Their Audio

Downloads behave differently, and silent downloads usually have their own cause. First, check whether the same title plays with sound while streaming — if it does but the download is silent, delete the download and download it again on stable Wi-Fi. An interrupted download can produce a file with a broken audio track.

Second, check download quality: go to Settings, then Stream & Download, then Download quality, and try Standard instead of Best. Some older devices fail to decode the audio track on the highest-quality downloads.

Third, confirm you have enough free storage — a nearly full phone can save an incomplete download that plays video without audio. Free up space, then re-download. If several downloads are silent, redo one first to confirm the fix.

Cast and Bluetooth Took the Sound Elsewhere

If the video plays but no sound comes out, your phone may be routing audio to a device you forgot about. Bluetooth is the usual thief: earbuds in their case, a car stereo, a smart speaker in another room.

Go to Settings, then Connected devices on Android or Settings, then Bluetooth on iPhone, and disconnect any headphones, earbuds, car stereos, or smart speakers. Then turn Bluetooth off entirely and test again. If the Cast icon is highlighted, the app may be sending audio to a TV or Chromecast instead — tap it and choose Disconnect, or select your phone.

Unplug any wired earphones too, and check the jack or USB-C port for lint — a phone that thinks headphones are still plugged in stays silent through its speaker. Test the speaker with another app, such as YouTube. If those are silent too, the problem is the phone’s speaker, not Prime Video — try the free speaker-cleaner tool at Fix My Speaker, which plays a tone designed to push water and dust out of the speaker grille.

The Reset That Clears the App’s Bad State

Corrupted cached data often causes Prime Video to lose sound. Clearing it is safe and won’t delete your downloads or watchlist.

On Android, go to Settings, then Apps, then Prime Video, then Storage & cache, and tap Clear cache — don’t tap Clear storage unless you’re happy to sign in again. Go back, tap Force stop, then reopen Prime Video and test a video. On iPhone there’s no clear-cache button, so offload the app instead: Settings, then General, then iPhone Storage, then Prime Video, then Offload App, then Reinstall App.

If that doesn’t help, sign out and back in: in the app, go to Settings, choose Sign out, then sign in again with your Amazon account. A stale session can break playback in ways that look like an audio problem. And if the app still won’t cooperate, uninstall it completely and reinstall it — that removes every local file, including corrupted data the cache clear missed. As a last resort, try Prime Video in your phone’s browser — if that has sound, the installed app is at fault.

Frequently Asked Questions

Why is there no sound on Prime Video but sound everywhere else?

The app is usually muted in its own player, set to a surround or audio description track your phone cannot play, or sending sound to Bluetooth. Check the speaker icon, switch the track to Stereo, and disconnect Bluetooth.

Why do my Prime Video downloads have no sound?

An interrupted download can save a file with a broken audio track. Delete it, free up storage, and download it again on stable Wi-Fi, using Standard quality.

Does clearing the Prime Video cache delete my downloads?

No. Clearing the cache on Android only removes temporary files, and offloading the app on iPhone keeps your data. Your downloads, watchlist, and account stay intact — clearing storage, by contrast, removes downloads and signs you out.

Why is Prime Video silent when I cast to my TV?

The TV or Chromecast may be muted, set to the wrong input, or receiving a surround track it cannot decode. Check the TV volume, reconnect the cast session, and switch the audio track to Stereo.