You stand in front of your Echo Show 15 (2nd Gen), say "Alexa," and nothing happens. The screen stays on whatever widget you had open. No blue light ripple. No response. You try again louder. Still silence. It's a frustrating moment, especially when the whole family relies on that kitchen display for timers, music, and quick questions. Most of the time it's one of a few common culprits: the mic is physically muted, the wake word sensitivity got dialed back, or the device needs a quick restart.
First thing to check: the mic mute button on top of the Echo Show 15. If you see a red light next to the camera or on the top edge, the microphone is disabled at the hardware level. Tap that button once to unmute. The red light goes off and Alexa should hear you again immediately.
Why the Echo Show 15 Stops Hearing You
The 2nd-gen Echo Show 15 launched in 2024 with a 13MP camera, built-in Fire TV, and Wi‑Fi 6E. A few things commonly trip up the mic:
- Mic mute button tapped accidentally: the button on top gets pressed when you're wiping the screen or reaching for the remote.
- Voice Profile not recognizing you: if Alexa's voice ID can't match your voice (common after a cold or in a noisy room), the device won't respond to your wake word.
- Wake word sensitivity lowered: a software update or accidental setting change can reduce how easily the device detects "Alexa."
- Background noise interference: loud appliances, TV, or multiple conversations can mask the wake word.
- Fire TV mode blocking the mic: when Fire TV is active, the mic stays on but the interface can lag, causing a delayed or missed response.
- Partial firmware update or Alexa+ enrollment: a pending update or the new Alexa+ service can leave the device in an odd state where the mic works but the cloud doesn't reply.
Power Cycle the Echo Show 15
Unplug the AC adapter from the back of the display. Wait 30 seconds, then plug it back in. The Echo Show boots up, shows the Amazon logo, and within a minute it should be ready to respond. This clears any temporary software glitch that might be freezing the microphone processing. It's the single most common fix and takes hardly any time.
Re-train Your Voice Profile
If the Echo Show responds to other people in your home but stays silent when you talk, Alexa's voice recognition has lost track of you. Open the Alexa app on your phone, tap More > Settings > Your Voice > Voice Profiles. Tap your profile and choose Re‑train voice. You'll repeat a few phrases like "Alexa, what's the weather?" The training takes about 60 seconds. If you've been sick or your voice has changed at all, this almost always fixes it.
Adjust Wake Word Sensitivity
Alexa lets you tune how easily the device wakes. Open the Alexa app, tap the Devices tab, select your Echo Show 15, then tap the gear icon. Scroll to Wake Word and choose your preferred wake word (Alexa, Amazon, Echo, or Computer). There's no separate sensitivity slider on the Echo Show (unlike some other devices), but switching to a less common wake word can reduce false triggers while keeping the device responsive. If you'd changed it to "Amazon" or "Echo," the device might not react to "Alexa" anymore.
Check the Mic in the Alexa App
Open the Alexa app, tap Devices, select your Echo Show 15, then tap the Mic icon at the bottom. You'll see a mute toggle. If it shows muted, tap to unmute. This mirrors the hardware button but can confirm the state. Also, while you're there, test a remote command: tap and hold the Talk button on the app and speak. If Alexa replies through the Show, the speaker works. If nothing happens, the device may have a deeper connection issue.
Look at Your Wi‑Fi Connection
The Echo Show 15 (2nd Gen) supports Wi‑Fi 6E, but if it's connected to a congested 2.4 GHz band or the signal is weak, the wake word detection can timeout while waiting for a cloud response. Open Settings on the Echo Show (swipe down from the top, tap the gear icon) > Network. Check the signal strength. If it's one or two bars, move your router closer or consider a mesh network. You can also try switching the Show between the 5 GHz and 6 GHz bands in the same menu for a less crowded channel.
Reboot the Fire TV Interface
If the Show is stuck in Fire TV mode and the mic seems unresponsive, the interface may be lagging. Press the Home button on the included Fire TV remote. Wait a few seconds for the Fire TV menu to load fully, then say "Alexa" while on the home screen. If that works, the issue is Fire TV app lag, not the mic. A soft reboot of the Fire TV side can help: go to Settings > Fire TV > About > Restart. The display will reboot and the Fire TV interface starts fresh.
Factory Reset the Echo Show 15
If nothing else has worked, a factory reset will clear any corrupted settings or stuck software. Go to Settings (swipe down from the top) > Device Options > Reset to Factory Defaults. Confirm the reset. The Show will wipe all your data, voice profiles, and preferences. After it reboots, set it up fresh using the Alexa app. Resetting is a last resort, but it's very effective for mic issues that won't budge.
