Technician helping fix Tuya not discovering devices in Smart Life app

Steve H.

Expert ★★★★★ 27,853 satisfied customers

Specialities: Smart device behavior after firmware updates, post-update instability, reconnect loops, delayed commands, app sync problems, and safe diagnostic checks.

Why a successful firmware update can still make a smart device behave worse, and what to check first

Technician avatar Technician
Let’s start with the safest checks first. When a smart device says the firmware update was successful but then behaves worse, I don’t want you to rush into repeated resets or more updates right away.

What got worse after the update: slower response, random disconnects, missing features, delayed commands, or something else?
Customer
It’s slower and sometimes ignores commands now. Before the update it worked fine most of the time.
Technician avatar Technician
That pattern is helpful. A successful update message only confirms the install finished. It does not always mean the device settled cleanly afterward or that every setting stayed in a healthy state.

Did the trouble start immediately after the update, or did it seem fine for a few hours and then get worse?
Customer
Pretty much right after. It came back online, but it felt different almost right away.
Technician avatar Technician
That makes an update-related cause much more likely than a random hardware problem.

Before we blame the firmware itself, I want to rule out a false alarm. Is the device showing as online in the app, and are other smart devices on the same network behaving normally?
Customer
Yes, it still shows online. My other devices seem normal. It’s just this one that feels unstable now.
Technician avatar Technician
That narrows it down well. After an update, a device can stay “online” but still struggle with cached settings, background re-indexing, or a Wi-Fi reconnect that looks normal in the app but feels weak in real use.

Trust moment: I don’t want you to try something that could make it worse. So for now, no factory reset, no deleting it from the app, and no power-cycling it over and over.
Customer
Okay. I was tempted to remove it and set it up again from scratch.
Technician avatar Technician
I’d hold off for the moment. Some devices behave worse for a while after an update because they are rebuilding internal settings or rejoining cloud services in the background.

What kind of device is it — plug, bulb, camera, speaker, thermostat, or hub? And did the app update around the same time as the firmware?
Customer
It’s a smart camera. The app did update too, I think on the same day.
Technician avatar Technician
That combination matters a lot. When both firmware and app versions change close together, it can look like one problem when there are actually two: the device may be fine, but the app may be reading its status differently, or the camera may have rejoined Wi-Fi with less stable behavior.

This is common after updates, but we should rule out risks. Did any settings reset quietly — motion sensitivity, video quality, preferred band, or notification rules?
Customer
I did notice motion alerts changed, and the video seems slower to load than before.
Technician avatar Technician
That points away from “the update failed” and more toward “the update changed behavior.” A successful firmware install can still leave the device with new defaults, fresh calibration, or a less stable reconnect to the network.

One safe question: is the camera farther from the router than your other devices, or does it rely on a weak room or mesh node?
Customer
Yes, it’s outside near the garage, so it probably has the weakest signal in the house.
Technician avatar Technician
That could explain why it feels worse after the update. A new firmware version can be a little less forgiving on a marginal Wi-Fi link, even though the update itself finished successfully.

Trust moment: I don’t want you chasing the wrong cause. If the signal was already borderline, the update may have exposed that weakness rather than creating a brand-new fault.
Customer
So the update might have changed how it works, but the real problem could still be the connection?
Technician avatar Technician
Exactly. Post-update problems often come from one of four places: changed defaults, weaker reconnect behavior, app and device version mismatch, or an older network weakness becoming more obvious.

That’s why I like checking what changed first instead of assuming the device is ruined.
Customer
I was worried the “successful update” message meant the update could not be the cause.
Technician avatar Technician
The update can absolutely still be part of the story. “Successful” usually means installed, not “everything will behave exactly like before.”

The safest path now is to compare current settings with what you remember, watch whether the device is slower only on live use or also in the app, and note whether Wi-Fi strength or reconnect behavior changed after the firmware. That gives you a clean diagnosis before bigger steps.

Quick answer: the accepted fix

When a smart device behaves worse after a successful firmware update, the safest first checks are to confirm whether any settings changed, compare app behavior with real device behavior, and review whether the device is on a weaker Wi-Fi link than before. It also helps to note whether the companion app updated around the same time, since app and firmware changes can overlap. Many post-update problems turn out to be changed defaults, delayed re-sync, or a weak connection that has become more noticeable. Save factory reset and full re-pairing for later, after those simpler causes are ruled out.

Why a successful firmware update can still lead to worse performance

A firmware update can install correctly and still leave the device behaving differently. New defaults, stricter Wi-Fi handling, changed motion settings, or a background re-sync can all affect how a smart camera, plug, bulb, or speaker feels afterward. In some cases, the update exposes a weak network path that the older firmware tolerated better. That is why “update successful” does not always mean “nothing changed.”

What to observe before resetting the device

Look for patterns first. Check whether commands are delayed only in the app or also on the device itself, whether settings quietly changed after the update, and whether the device is now slower only in a weak-signal area. If the app updated on the same day, keep that in mind too. Small clues like these often show whether the problem is firmware behavior, app sync, or Wi-Fi stability.

Smart device worse after firmware update — safe troubleshooting tips

Start with changed settings, app sync, and network stability before trying bigger recovery steps.

Helpful checks include comparing current settings with what you used before, watching for reconnect loops, and noticing whether the device sits in a weak Wi-Fi area. It is also worth checking whether the app updated around the same time as the firmware. A successful update can still leave the device slower, less responsive, or different in behavior without meaning the hardware is bad. Keep notes and make observations first instead of changing everything at once.

Disclaimer: This information is AI-generated and intended for general guidance only. Do not open devices or attempt unsafe electrical work. For advice specific to your Tuya/Smart Life device model and router settings, please consult a verified expert on Whizz-Tech or the manufacturer’s support before making decisions.

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FAQ

Why is my smart device worse after a successful firmware update?

A successful install does not always mean the device will behave the same way as before. The update may change defaults, reconnect behavior, or how the device handles a weak signal. Sometimes the app changes at the same time and adds confusion.

Did this happen because of the update or something else?

It can be either. If the trouble started right after the update, the update is part of the timeline, but Wi-Fi weakness or changed settings may be the real reason it now feels worse. Both can be true at the same time.

Is this a settings issue or hardware?

Very often it is not hardware. Post-update problems are commonly linked to changed settings, app sync issues, or less stable network behavior. Hardware becomes more likely only if the device also fails basic functions consistently.

Can this be checked safely at home without resetting it?

Yes. Start by reviewing changed settings, noting app behavior, and checking whether the device is on a weaker connection than before. Those checks are safer than deleting the device or resetting it immediately.

Sources

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