Technician helping fix Tuya random shutdowns and Smart Life issues

Steve H.

Expert ★★★★★ 27,853 satisfied customers

Specialities: Smart TV startup issues, setup wizard loops, TV turning on to first-time installation, HDMI-CEC side effects, update-related settings resets.

Common reasons a TV returns to the setup screen on startup, and what to check first

Technician avatar Technician
Let’s start with the safest checks first. I don’t want you to try anything that could erase settings or make the TV harder to use.

When the TV turns on, does it always open the language / region / Wi-Fi setup screen, or does it only show part of the setup process?
Customer
It looks like the first-time setup screen. I turn the TV on and it wants language and network again. Sometimes I can back out, but it comes back the next time.
Technician avatar Technician
That helps. This can happen after an update, a startup setting change, or if the TV is not saving its last state correctly.

Before we guess, what changed around the time this started?
• a software update
• a new streaming device or soundbar
• power outages or unplugging the TV
• someone pressing setup on the remote
Customer
We had a short power outage last week. I also connected a soundbar not long before this started. I do not remember any update message.
Technician avatar Technician
Good to know. A power interruption can sometimes leave the TV acting like it did not finish startup normally, and external devices can also send signals that confuse the boot process.

Let’s rule out the simplest risk first: when the setup screen appears, is the TV remote still responding normally, or does it feel like the TV is partly frozen?
Customer
The remote works. I can move around the setup screen. The TV does not seem frozen, just stuck wanting setup again.
Technician avatar Technician
That is actually a useful sign. It suggests the TV software is loading, but something is telling it to reopen the setup wizard instead of going to the home screen.

Let’s check two common causes without changing anything major:
• Is the soundbar connected by HDMI ARC/eARC?
• Do you also have a streaming stick, game console, or cable box connected?
Customer
Yes, the soundbar is on HDMI ARC. We also have a Roku plugged in. The cable box is gone now.
Technician avatar Technician
That combination matters because HDMI-CEC can sometimes wake the TV into an unusual input or startup path. It does not always cause a setup loop, but it is common enough that we should rule it out safely.

Trust moment: I do not want you factory resetting the TV yet. If the problem is caused by a connected device or a startup mode, a reset may only bring it back later.

One more clue: after you finish the setup, does the TV remember your Wi-Fi and apps for a while, or does it forget everything as if it were brand new?
Customer
It still remembers most things. Apps are there. Wi-Fi usually stays saved. It just keeps opening the setup screen again when we power it on later.
Technician avatar Technician
That is an important difference. If the TV were truly wiping itself each time, I would worry more about storage or a deeper software fault. Since it keeps your apps and network, this looks more like a startup wizard trigger than a full reset.

The next safe checks are:
1) see whether the TV is set to Retail / Store / Demo mode instead of Home mode
2) see whether a recent update changed startup behavior
3) briefly test startup with external HDMI devices disconnected
Customer
I have heard of Demo mode but I do not know where to look. Could it switch itself somehow?
Technician avatar Technician
It is not the most common cause, but it can happen after a setup interruption or certain menu changes. Some TVs also use different names like Store mode, Demo mode, or Retail mode.

Let’s keep this simple and safe:
• if the picture mode or startup screen looks unusually promotional, Demo mode becomes more likely
• if this began right after the outage or after connecting devices, the TV may just be re-entering a startup check it never finished cleanly
Customer
It does not show ads or store videos. It just acts like I need to set it up again. Once I skip through, it works normally.
Technician avatar Technician
That makes Demo mode less likely and points more toward a startup-state issue. This is common after updates or power events, but we should rule out risks before touching system menus.

Here is the logic I would use:
• If the TV works normally after skipping setup, the operating system is mostly intact
• If it only happens when other HDMI devices are attached, input control or CEC becomes more suspicious
• If it starts after every full power-off, the TV may not be storing startup completion properly
Customer
It does seem worse when everything is connected. We usually turn the soundbar and Roku on around the same time as the TV.
Technician avatar Technician
That is very helpful. A false “first-time setup” loop can sometimes be triggered by external devices waking the TV too aggressively or changing input control during boot.

Safest next test: power the TV on once with the Roku and soundbar disconnected, just to see whether the setup screen still appears. We are not fixing it yet — only separating a TV settings issue from an HDMI-related one.
Customer
That sounds reasonable. I can try that. Is there anything I should avoid changing for now?
Technician avatar Technician
Yes, a few things are best avoided while you are diagnosing this:

• Do not run a factory reset as the first step
• Do not change many system settings at once, because that hides the real cause
• Do not unplug the TV repeatedly from the wall unless a support page for your model specifically tells you to

Let’s keep it calm and methodical: check whether the issue happens with HDMI devices removed, look for Home vs Store/Demo mode, and note whether the setup wizard appears after standby only or after a full power loss.
Customer
That makes sense. I like that this starts with simple checks and not wiping the TV. I will test it with the devices unplugged first.

Quick answer: the accepted fix

Accepted first checks for a TV that keeps opening the setup screen when it turns on:
• Confirm the TV is set to Home mode and not Store, Demo, or Retail mode.
• Note whether the issue started after a power outage, update, or HDMI device change; that pattern often explains the trigger.
• Test one startup with external devices disconnected to rule out HDMI-CEC or input-control conflicts.
• If the TV still remembers apps and Wi-Fi, treat it as a startup wizard loop first, not a full reset or hardware failure.
• Keep changes small and documented so you can tell which step actually changed the behavior.

Why this can start suddenly even if the TV seemed fine before

A TV that boots to the setup wizard after working normally for months is often dealing with a change in startup state rather than a total failure. Common reasons include a recent firmware update, a power interruption, HDMI-CEC activity from a soundbar or streaming stick, or a mode setting that shifted from Home to Demo or Store behavior. If the TV still keeps your apps and network, the issue is usually more about boot flow than lost memory.

What to check first before assuming the TV needs a reset

Start by noticing when the setup screen appears: after normal standby, after the TV loses power, or only when other devices wake up with it. Then compare one startup with HDMI devices connected and one without them. These safe checks can help separate a settings issue, update-related behavior, or input-control conflict from a more serious software problem.

Tuya random shutdowns — quick troubleshooting tips

Most cases are fixed by clearing countdown/inching, checking automations, and stabilizing 2.4 GHz Wi-Fi.

Quick path: disable Smart Life/Tuya Smart Automation and Tap-to-Run scenes, clear Countdown/Inching on the device page, test with a low-power load, and improve 2.4 GHz coverage (move the mesh node closer). Avoid running space heaters on typical smart plugs to prevent overload and overheating shutdowns.

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 device model, wiring, and router/mesh settings, please consult a verified expert on Whizz-Tech or the manufacturer’s support before making decisions.

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FAQ

Why did my smart TV start showing the setup screen every time I turn it on?

This can begin after a power outage, software update, or a change involving connected HDMI devices. Sometimes the TV is still working normally but keeps reopening the startup wizard instead of the home screen.

Did this happen because of an update?

It can. Some updates change startup behavior, input handling, or how the TV resumes after standby. It is worth checking for recent firmware activity before assuming the TV is failing.

Is this a settings issue or a hardware problem?

If the TV still remembers apps, Wi-Fi, and picture settings, a startup setting or software state is more likely than hardware. A deeper fault becomes more likely if the TV forgets everything each time.

Can this be checked safely at home?

Usually yes. Safe checks include looking for Home vs Demo mode, testing startup with HDMI devices disconnected, and noting whether the issue happens after standby or only after full power loss. A factory reset is usually not the first step.

Sources

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