Samsung TV Keeps Signing Out of YouTube After a Firmware Update: Six Checks

A Samsung smart TV that has held a YouTube session for a year can begin showing the sign-in screen every time the screen wakes. The same Google Account still works on a phone, and other apps on the same television stay signed in. Entering the account again works, and then the television forgets again a day or a week later.

The fastest route out of this is to stop treating it as a television fault until the account side has been ruled out. A YouTube sign-in on a television is not a file kept on the television. Google lists it in the account as a grant named YouTube on TV, and YouTube's own support page states that removing that grant "will sign you out of any device using the YouTube on TV app with that account." A television cannot hold a session that the account has already released.

Six checks follow, in cost order. The first three are done from a phone, take about seven minutes, and require no television menus at all. Only when all three come back clean is there reason to open a settings menu on the set.

Check 1: Name the app before naming the fault

Three separate products display a YouTube-branded sign-in screen on a Samsung set, and they are governed by three separate help centres and three separate rule sets.

• YouTube — the free app, signed in with a Google Account.
• YouTube TV — the paid subscription service. It carries a location rule that the free app does not have.
• YouTube Kids — a separate app tied to a supervised profile, with parent-account controls layered on top of ordinary sign-in.

The distinction matters immediately for subscribers. YouTube TV's help documentation states plainly: "To make sure you get the correct local networks, use YouTube TV at least once every 3 months in your home area." The home area is set and updated at tv.youtube.com/settings/area, reached by selecting the profile photo on tv.youtube.com and then Location. Google documents two limits on that page: the home area cannot be changed if two changes have already been made in the past 12 months, and it cannot be changed to a place the account is not currently located in.

None of that applies to the free YouTube app, which has no location rule to violate.

Check 2: Read the account's device list before touching the television

Google publishes a list of every device currently holding a session on the account. The section is titled Your devices, and the documented route is: open the Google Account, select Security & sign-in, and under "Your devices" select Manage all devices. The short address is google.com/devices. Google states that the list shows "devices where you're currently signed in to your Google Account or have been in the last few weeks."

Do this while the television is sitting on the sign-in screen, not afterwards. Two outcomes, pointing in opposite directions.

1. The television is absent from the list. The session was terminated at the account, not lost on the set. Continue to Check 3.
2. The television is still listed while its screen asks for a sign-in. The grant survived and something on the set is failing to present it. Skip to Check 4.

While on this page, account for anything that legitimately ends sessions. Google's password documentation states that after a password change "you'll be signed out everywhere except: Devices you use to verify that it's you when you sign in. Some devices with third-party apps that you've given account access. Helpful home devices that you've given account access." A password reset done on a phone earlier in the same week is a complete explanation for a one-off sign-out on a television, and is not a fault at all.

YouTube's own sign-out article points to a second address carrying the same information, myaccount.google.com/device-activity, where a television can be selected and signed out directly.

Check 3: Inspect the grant named YouTube on TV

This is the one documented mechanism that signs out several televisions at once, and it is why a household with two or three Samsung sets can watch all of them drop on the same evening.

YouTube's support page for signing out of a TV describes it directly: visit myaccount.google.com/permissions, select YouTube on TV, and choose Remove Access. The consequence, in Google's words, is that this "will sign you out of any device using the YouTube on TV app with that account."

Google describes the same control at myaccount.google.com/linkedapps, warning that "if you remove access, the app can't access your Google Account."

The practical consequence is under-appreciated. Any household security tidy-up, any well-meant cleanup of an unfamiliar entry called "YouTube on TV", revokes every television on the account at once. On a shared account this repeats as often as the tidy-up does — exactly the recurring pattern that reads like a firmware bug and is not one.

If the entry is missing from the permissions page entirely, the grant was removed at some point and the next successful sign-in will re-create it.

Check 4: Cold boot, then sign in through the code page rather than the on-screen keyboard

Only now does the television get touched. Samsung's app troubleshooting guidance gives two documented forms of a cold boot, and they are not interchangeable with pressing the standby button.

• With the remote: "Press and hold the power button on your remote until the TV turns on and off again. This should take about 5 seconds."
• Without the remote: "Unplug the TV from the power socket and leave it unplugged for a minimum of 30 seconds. Then plug the TV back into the power socket again."

Then sign in. YouTube documents two methods on a smart TV, and they do not fail in the same way: "Scan the QR code, or go to yt.be/activate on your phone, tablet, or computer, then enter the code on the screen," or "Use your remote and the on-screen keyboard to enter your Google Account information." YouTube's own advice, when one route fails, is to try the other. The code route at yt.be/activate is the more reliable of the two on a television, because the credential is typed on a device with a real keyboard and a browser capable of completing two-step verification.

One distinction inside the app is worth getting right. YouTube documents both a Sign out and a Remove Account action, reached the same way: open the YouTube app, select the left menu, select the profile picture to open the accounts page, select the account, then choose one. Sign out leaves the account listed on the set; Remove Account takes it off the accounts page entirely. Remove Account followed by a fresh sign-in through the code page is the cleaner of the two, because it does not reuse the entry that has been misbehaving.

Check 5: Software Update first, then Reinstall — and note what cannot be deleted

Samsung's documented paths, taken from its support pages:

• Manual firmware update: Settings → All Settings → Support → Software Update → Update Now.
• Automatic firmware updates: Settings → All Settings → Support → Software Update → Auto Update.
• Automatic app updates: Apps → App Settings → Auto update.
• App reinstall: Apps → App Settings, select the app, then Reinstall.

The specific that saves the most effort here: Samsung's own guide to deleting and reinstalling TV apps states that "default apps that are provided with the TV, such as Netflix and YouTube, cannot be deleted." Advice to "delete YouTube and install it again" therefore describes an action that does not exist on the set. Reinstall is available; Delete is not. Samsung notes separately that deleting an app removes all data associated with it, which is what Reinstall achieves for the pre-installed ones.

Two diagnostics live in the same area on 2022 and newer models, at Settings → All Settings → Support → Device Care → Self Diagnosis:

• Smart Hub Connection Test — Samsung describes it as a check of "the Smart Hub connection". Run it while the fault is present, not after a reboot.
• SW Version Information — the current software version and update progress. Record this string; it is the first thing support asks for.

Samsung also documents a manual DNS change where apps fail on Wi-Fi but work over a wired connection or a phone hotspot: Settings → (General - on 2017/2018 TVs) → Network → Network Status → IP Settings → DNS Setting → Enter manually, then 8.8.8.8. That path is documented for apps that will not load, not for sign-outs, and it is not offered as one here.

Check 6: Reset Smart Hub last, with the cost understood

Samsung documents different paths by model year, which is why a single instruction copied from a forum so often points at a menu that is not there:

• 2025 models: Settings → All Settings → Support → Device Care → Reset Smart Hub
• 2022 to 2024 models: Settings → All Settings → Support → Device Care → Self Diagnosis → Reset Smart Hub

The default PIN is 0000. Samsung states the effect plainly: "all downloaded apps are initialised. User accounts and settings are wiped from the apps and all Smart Hub settings will revert to the factory default," and that the reset "will log you out of all apps and your Samsung Account. This will also remove all apps that are not pre-installed."

That is the entire reason this step is sixth rather than first. A Smart Hub reset costs every other app's sign-in on the set, plus any app installed after purchase. If the cause was account-side — Check 2 or Check 3 — the reset changes nothing and the sign-out returns. The full factory reset, documented on 2025 models as Settings → All Settings → General & Privacy → Factory data reset, sits beyond even this.

One adjacent control is routinely mistaken for the fix. The Samsung account is signed out at Settings → All Settings → Samsung Account, then the account, then My Account → Sign Out. A Samsung account is not a Google Account, and signing out of it has no documented effect on a YouTube session.

What the documentation supports as a cause

Three mechanisms are documented by the vendors themselves, and each produces a distinguishable pattern.

• The grant was revoked at the account. Documented by YouTube. Produces a simultaneous sign-out on every device using YouTube on TV. Recurs exactly as often as the revocation recurs.
• The password was changed or reset. Documented by Google, with three named exceptions. Produces a single sign-out shortly after the change, across most devices at once.
• Smart Hub was reset, or the set was factory reset. Documented by Samsung. Produces a sign-out of every app on that one television, and only that one.

Model year and platform version are worth recording accurately, because Samsung publishes that mapping in its developer specifications: 2026 models on Tizen 10.0, 2025 on Tizen 9.0, 2024 on Tizen 8.0, 2023 on Tizen 7.0, and 2022 on Tizen 6.5. The table is genuine and citable. It does not describe behaviour changes in any particular firmware build.

What neither Samsung nor Google documents

Several widely repeated explanations have no vendor page behind them. Saying so is more useful than repeating them, because each one sends the reader to a different dead end.

• A firmware update causing repeated YouTube sign-outs. Neither Samsung's support site nor YouTube's help centre attributes recurring sign-out to any television software update. Samsung does not publish a consumer-facing changelog for each firmware build, which is precisely why no build number appears anywhere in this article.
• Clock drift. Samsung documents the clock menu at Settings → General (General & Privacy) → System Manager → Time → Clock, with Clock Mode set to Auto or Manual, and notes that in Auto mode the Time Zone and DST controls are greyed out. Setting Clock Mode to Auto costs nothing and is worth doing on general principle. Samsung does not document an incorrect clock as a cause of app sign-out, so no such claim is made here.
• IPv6, or one particular router and provider combination. This circulated after a Tizen platform release in connection with the YouTube app failing to load, which is a different symptom from being signed out, and the attribution came from press coverage relaying a support representative rather than from a Samsung support page. Treat it as unconfirmed.
• A published session lifetime. Neither vendor states how long a YouTube on TV session is meant to last. Figures such as "it expires every 30 days" are not verifiable in either direction, so they are not a basis for planning anything.

When This Doesn't Apply

• The sign-in succeeds but playback fails. Buffering, a black screen, or an error message after a successful sign-in is a different problem entirely. None of the account work above touches it.
• A streaming stick or console is doing the work. If YouTube is being watched through a device on an HDMI input, the Samsung menus are irrelevant and the fault belongs to that device and its own account state.
• Sets older than 2022. The Device Care and Self Diagnosis menus described above are documented by Samsung for 2022 and newer models. Older sets use different menu trees, and the paths in Checks 5 and 6 will not match what is on screen.
• Hotel, hospital and business displays. Commercial and hospitality Samsung displays run a different configuration layer, and sign-in behaviour is set by the property, not the account holder.
• Supervised and child accounts. A YouTube Kids profile or a supervised Google Account carries parent-side controls that can end a session independently of everything on this list.
• Shared accounts where more than one person manages security. If someone else can reach the permissions page, Check 3 will keep coming back true, and no amount of television-side work will hold.
• A television that has never held a session. A set that has failed at sign-in from the very first attempt has a sign-in failure, not a sign-out. The code page at yt.be/activate and basic network checks come first there.

Concrete framework

Record these six items before contacting either vendor. Support conversations that begin without them tend to restart at step six.

1. The exact app name on the sign-in screen: YouTube, YouTube TV, or YouTube Kids.
2. The model code from the label on the back of the set, and the software version string from Settings → All Settings → Support → Device Care → Self Diagnosis → SW Version Information.
3. Whether the television appears at google.com/devices at the moment the sign-in screen is showing.
4. Whether the entry YouTube on TV is present at myaccount.google.com/permissions.
5. Whether any other device on the same account signs out at the same moment, and whether any other app on the same television signs out at the same moment. The first indicates an account fault, the second a set fault, and it is almost never both.
6. The date and time of the last three sign-outs, and whether the account password changed inside that window.

Escalate to Samsung when the sign-out is confined to one television while the account holds its session elsewhere and the software version is current. Escalate to YouTube when the sign-out happens across devices simultaneously, or when the permissions entry keeps disappearing without anyone removing it.