Smart home technician helping fix HomeKit firmware update problems

Steve H.

Expert ★★★★★ 27,853 satisfied customers

Specialities: Apple Home & HomeKit, HomePod & Apple TV hubs, Thread/Matter bridges, iOS/iPadOS, Wi-Fi/Bluetooth troubleshooting, advanced firmware recovery

HomeKit firmware update failed on accessory, HomePod, or Apple TV — Home app, hub and Wi-Fi issues

Technician avatar Technician
Hey! We’ll track down why your HomeKit device firmware update failed and get it out of the endless “Updating…” or “Accessory Not Responding” loop. A few quick questions so we don’t guess:
• Which accessory is affected (HomeKit thermostat, lock, camera, plug, sensor, bridge like Hue/Aqara/Eve, etc.)?
• Where did you start the update — in the iOS Home app or in the manufacturer’s app (Eve, Aqara, Nanoleaf, Wemo, etc.)?
• Do you have a home hub (HomePod, HomePod mini, Apple TV 4K, or iPad used as a hub), and is it shown as Connected in Home settings?
• Exact symptom: stuck at a certain percentage, “Firmware update failed”, “Accessory Not Responding” in HomeKit, or the device disappeared from the Home app altogether?
The more detail we have, the better we can fix a HomeKit device stuck on firmware update instead of randomly resetting your whole home.
Customer
I tried to update firmware for a couple of HomeKit plugs and a motion sensor from the brand’s app on my iPhone. The app said “updating firmware via HomeKit”, then froze. In the Home app the plug says “Accessory Not Responding” and the sensor just shows “Updating…” forever. I also have a HomePod mini as my Apple Home hub.
Technician avatar Technician
Got it — classic case of a HomeKit accessory firmware update failing mid-way.
A few things usually go wrong when HomeKit firmware updates get stuck:
• The home hub (HomePod / Apple TV) briefly loses Wi-Fi or power while pushing the firmware to the accessory.
• Your iPhone, hub and accessory aren’t on the same stable 2.4 GHz network or are right on the edge of Bluetooth/Thread range.
• The manufacturer’s cloud or update server times out, so the Home app shows “Accessory Not Responding” even though the device is still alive.
• On older accessories, low batteries or power glitches corrupt the download, so the firmware update fails repeatedly.

We’ll:
1) Make sure your Home hub and iPhone are updated and properly signed into iCloud.
2) Confirm the accessory has solid power/Wi-Fi/Thread or Bluetooth signal.
3) Retry the update cleanly from the right app — and if needed, walk through a safe HomeKit accessory reset so it doesn’t stay bricked.
Customer
I’m on the latest iOS and the Home app is updated. In Home settings I see my HomePod mini listed as the only home hub and it shows “Connected”. But the plug still says firmware update failed in the brand app, and in Apple HomeKit it keeps flipping between “Updating…” and “Not Responding”.
Technician avatar Technician
Perfect, that helps. Let’s clean up the Apple side so the HomeKit firmware update can actually finish.
Step 1 — Reboot iPhone and home hub
1) Restart your iPhone/iPad that controls the Home app.
2) Unplug the HomePod mini for 30 seconds, then plug it back in to reboot the Apple Home hub.
3) Wait a couple of minutes, then reopen the Home app and let everything reconnect.

Step 2 — Confirm the Home hub is primary
• In the Home app, go to Home Settings → Home Hubs & Bridges and confirm the HomePod shows as “Connected” and not “Standby” or “Disabled”.
• If you have an Apple TV as well, we’ll keep just one hub active for now to simplify the update path.

Once the Home hub and iPhone are in sync again, we’ll retry the firmware on one test accessory and see if the HomeKit device still fails to update.
Customer
I rebooted both. The HomePod mini is “Connected” and I only have that one hub. When I try the firmware again on the plug, it goes to about 20–30%, then the app says “update failed, try again later”. In the Home app the tile still shows “Accessory Not Responding”.
Technician avatar Technician
That pattern usually means the HomeKit accessory loses connection mid-update, not that it’s permanently dead.
Step 3 — Give the accessory a clean, strong link
1) Move the plug to an outlet closer to the router or HomePod mini (same room if possible).
2) Make sure your iPhone is on the main 2.4 GHz Wi-Fi (no guest/VPN/private relay while we update).
3) If the device uses batteries (sensors, locks), replace or fully charge them before retrying.

Step 4 — Retry via the manufacturer’s app
• Open the brand’s app (Eve, Aqara, etc.) while your phone is near the accessory.
• Look for a firmware / accessory update menu and start the update from there instead of from the Home app.
• Don’t leave the app or lock the screen until it finishes; give it several minutes even if it seems stuck.

If other devices from the same brand update fine but this one HomeKit device keeps failing firmware update, we’ll treat it as a “problem accessory” next.
Customer
Moving it closer helped one of the plugs — that one finally finished the firmware update and now shows online in HomeKit. But another plug and the motion sensor still fail every time. The sensor sits far from the router and only talks over Thread/Bluetooth through the HomePod mini.
Technician avatar Technician
When just one or two HomeKit devices get stuck on “Updating…” while others succeed, it’s usually local to those accessories.
Step 5 — Power-cycle and “wake up” the accessory
• For the plug: unplug it for 30 seconds, plug back in near the hub, then wait until the LED shows it’s online.
• For the motion sensor or battery device: pop the battery out for 10–15 seconds, reinsert, and wait for any “joined” blink pattern.

Step 6 — Safe remove/re-add to HomeKit
1) In the Home app, long-press the tile → Accessory Details → scroll down and tap Remove Accessory for the stubborn device.
2) Put the accessory into pairing mode using the manufacturer’s pattern (often a long press or several quick presses).
3) Re-add it to the same Home using the HomeKit setup code in the Home app or via the brand’s app.
4) Once it responds reliably, attempt the firmware update again from the manufacturer’s app while standing near the HomePod mini.

This often clears a corrupted download that made the HomeKit firmware update fail repeatedly.
Customer
That worked for the sensor. I also have a Hue Bridge and an Aqara hub that show firmware updates pending. Sometimes those hub updates fail too and then several HomeKit lights or sensors go “Not Responding” at once in the Home app.
Technician avatar Technician
Great info. When a HomeKit bridge or Thread border router firmware update fails, a whole group of accessories can disappear or flip to “No Response” in Apple Home.
Try this:
• Open the Hue/Aqara (or other) app and run the bridge firmware update from there while the hub is wired or close to the router.
• Avoid unplugging the bridge or router until the update finishes; these updates can take several minutes.
• If the update fails, reboot just the bridge (unplug 30 seconds) and the router, then retry once more.
• After the bridge shows updated and online, open the Home app and give it a minute; most HomeKit lights and sensors should come back without re-pairing.

If the bridge still shows failed firmware or won’t come back online, some brands have a special recovery mode we can walk through to reload firmware without wiping your whole Home.
Customer
Is there anything I can change now so I don’t have to worry about bricking stuff every time there’s an Apple Home architecture or device firmware update? I’m nervous when I see “HomeKit firmware update available” pop up now.
Technician avatar Technician
Totally fair. Let’s “future-proof” things so the next HomeKit firmware update isn’t stressful.
Preventive setup for HomeKit and Apple Home
• Keep a solid home hub: a HomePod mini or Apple TV 4K wired or very close to the router, and avoid moving it during updates.
• Use a single main Wi-Fi SSID for HomeKit gear, avoid aggressive guest isolation/VPN, and keep 2.4 GHz enabled for older accessories.
• Update iOS/iPadOS and tvOS regularly, but wait a few days on big Home architecture changes if your setup is complex.
• When firmware is available for many accessories, update in small batches (one room or one brand at a time) and confirm nothing gets stuck.
• If a particular release is known to cause HomeKit devices to fail updates, disable auto-update in the brand app and wait for the next build.
These habits make HomeKit much more stable and reduce the chance of anything getting “soft-bricked” mid-update.
Customer
What if the worst happens and a device really is bricked? Like, the HomeKit firmware update failed and now it won’t show up in the Home app or the manufacturer’s app at all, even after resets.
Technician avatar Technician
That’s the “worst-case” version of a HomeKit device firmware update failed scenario, but there are still options:
• Follow the exact factory reset or recovery instructions from the brand (often a 10–15 second button press or several power cycles until it flashes differently).
• Try pairing it again with the manufacturer’s app first, while standing close to the HomePod/Apple TV and router, before adding it back to the Home app.
• Some vendors (Eve, Aqara, etc.) provide desktop tools or special modes to reload firmware — we can walk you through those steps brand by brand.
• If it’s still invisible to both apps after a proper reset, the flash may genuinely be corrupted — at that point, contacting the manufacturer with logs/screenshots often gets a warranty replacement.
We can go through the exact reset pattern and any hidden recovery options for your specific HomeKit accessory live in chat if you’d like.
Customer
After rebooting the HomePod, moving the devices closer, removing/re-adding the stubborn ones and updating from the brand apps, everything is now on the latest firmware. No more “Updating…” or “Accessory Not Responding” messages in the Home app. Thanks!
Technician avatar Technician
Summary: when a HomeKit device firmware update fails, first reboot your iPhone and Apple Home hub, then move the accessory close to the hub/router and retry the update from the manufacturer’s app over stable Wi-Fi. For stubborn accessories, remove them from Home, perform a proper factory reset, re-add them, and try the firmware again. Bridges and hubs should be updated from their own apps, with power and network kept rock-solid. Still seeing “Accessory Not Responding” or “Updating…” in the Home app? Open the chat and an expert will walk through advanced recovery step by step.

Quick answer: the accepted fix

Accepted fix when a HomeKit device firmware update fails: reboot your iPhone and HomePod/Apple TV hub, move the accessory close to the hub/router, then retry the update from the manufacturer’s app over a stable 2.4 GHz network. If it still shows “Updating…” or “Accessory Not Responding”, remove it from the Home app, factory-reset the accessory, re-add it to HomeKit, and then re-run the firmware update once it’s online and responding normally.

Why HomeKit firmware updates fail or get stuck

Most HomeKit firmware update failures come down to three things: unstable connectivity between the home hub and accessory, power or battery issues, or the vendor’s cloud/update servers timing out. HomeKit often relies on a HomePod, Apple TV or iPad home hub to deliver firmware, using Wi-Fi, Thread, or Bluetooth. If the hub reboots, loses Wi-Fi, or the accessory is on the edge of range, the update can freeze at a percentage and the Home app shows “Accessory Not Responding”. Low batteries and older hardware can also corrupt downloads, and crowded Wi-Fi/mesh networks sometimes drop packets exactly when the firmware is being flashed.

How to test if your HomeKit device is really fixed after a failed update

After recovering from a HomeKit device firmware update failed error, leave the accessory powered and online for a few hours. In the Home app, check that it responds instantly to commands and doesn’t show “Updating…” or “No Response”. Toggle it from automations, scenes and Siri (“Hey Siri, turn off the living room plug”) and from the manufacturer’s app. If it behaves normally from both apps and survives a hub reboot (HomePod/Apple TV) without going missing, your HomeKit firmware issue is most likely resolved. If several accessories drop at once again, re-check your Wi-Fi, home hub status and any pending bridge updates.

HomeKit firmware update failed — quick expert tips

Most cases are fixed by stabilising the home hub, improving signal, and retrying the update from the right app.

Quick path: restart your iPhone/iPad and HomePod or Apple TV home hub, make sure everything is on a reliable 2.4 GHz Wi-Fi, then move the accessory close to the hub and re-run the HomeKit firmware update from the manufacturer’s app. Remove and re-add only the devices that stay on “Updating…” or “Accessory Not Responding”, performing a proper factory reset before pairing again. Update bridges (Hue, Aqara, Thread border routers) one at a time when the network is quiet. If a specific version keeps failing, turn off auto-updates in the brand app and wait for a more stable release.

Disclaimer: This information is AI-generated and intended for general guidance only. For advice specific to your Apple Home setup, HomeKit brands, and firmware versions, please consult a verified expert on Whizz-Tech before making decisions.

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FAQ

Why did my HomeKit device firmware update fail in the Home app?

Most HomeKit firmware updates fail because the home hub (HomePod/Apple TV) briefly loses Wi-Fi, the accessory is too far from the hub, or the vendor’s update server times out. The result is often “Accessory Not Responding” or a tile stuck on “Updating…” until you stabilise the network and retry from the manufacturer’s app.

Do I need a HomePod or Apple TV hub to update HomeKit accessories?

For many HomeKit accessories, a home hub such as a HomePod, HomePod mini or Apple TV is strongly recommended so updates and remote access work reliably. Some devices can update directly from the manufacturer’s app over Bluetooth or Wi-Fi, but HomeKit features like automations and secure remote control depend on a hub that stays online.

Is it safe to retry a failed HomeKit firmware update?

Yes, in most cases it’s safe to retry a failed HomeKit firmware update after you’ve fixed the cause (Wi-Fi, hub, power). Make sure the device has stable power, move it close to the hub/router, and keep your iPhone on the same network with the vendor’s app open until the update completes.

When should I factory-reset a HomeKit accessory after a failed update?

If an accessory won’t finish updating, stays “Not Responding” in the Home app, or disappears from both HomeKit and the brand’s app, a factory reset and re-pair is usually the fastest fix. Remove it from the Home app first, follow the manufacturer’s reset instructions exactly, then add it back and attempt the firmware update again once it’s responding normally.

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