Setup & pairing
How to unlock a TV key lock without a remote
Nefarius Apps11 min read
Key lock stops the buttons on the TV itself, not the remote. LG says that only the TV remote can turn the key lock on or off, and that the power button on the TV always works. So without the remote, you need something that sends the same commands as the remote. If the TV is a smart TV on your Wi-Fi, a phone remote app can do it. If it is not, use a replacement remote or a universal infrared remote. Then open the menu and set Key Lock to Off.
What does key lock do on a TV?
Key lock disables the buttons on the body of the TV. When you press one, the TV shows a message and does nothing. LG lists two symptoms: a message says that the key lock is enabled, and the button does not work. The remote is not locked.
The power button is the exception on LG TVs. LG's 2016 page about the message says that "only power button works" when Key Lock is on. A 2024 LG page says that "the power button on the TV is available all the time". So you can still turn the TV on and off.
The lock is usually a parental control. TCL describes its front panel lock as a way to "disable the controls on the front of TV so children can't change TV settings without the remote." Each brand gives the lock a different name.
| TV | Name of the setting | What it locks |
|---|---|---|
| LG | Key Lock, or Key Lock Function | All buttons on the TV except power |
| TCL (not Roku TV models) | Front panel lock | The controls on the front of the TV |
| Samsung hotel TVs | Panel Button Lock | All keys, all keys except power, or only Menu and Source |
| Other brands | Key lock, panel lock or child lock | Read the manual for your model |
LG also says that "some models do not provide Key Lock". Samsung's page about how to control a Samsung TV without a remote does not mention a panel lock. Samsung documents one in its manual for hotel TVs (see "Hotel TVs" below).
Why the buttons on the TV cannot turn it off
On many TVs, the button on the TV opens a small menu. Samsung says that a press of its Controller button shows the Control menu. On an LG TV with key lock on, that route is closed, because only the power button works. LG's UK page says it directly: "the keys cannot be unlocked with the buttons on the TV." The title of that page says "without remote", but the fix it gives uses the remote.
Is it key lock, a parental lock or hotel mode?
Three different locks can stop you. Find which one you have before you try a fix, because each one needs a different fix.
| What you see | What it is | What turns it off |
|---|---|---|
| The buttons on the TV do nothing, or show a key lock message | Key lock | The remote, or a device that acts as the remote |
| The TV asks for a password when you open a channel, an app or an input | A parental lock | The password |
| A TV from a hotel, with menus that are missing | Hotel mode | The hotel or its installer |
A parental lock is a different setting. LG says that its Lock feature locks channels, apps and external inputs with a password. LG puts the default password in the user manual. If you forget the password, LG tells you to contact LG Customer Support. A phone app or a new remote does not help here, because the TV still asks for the password. TCL also lists a TV lock with a user-defined password.
Turn off key lock with your phone
A phone app can replace the remote of a smart TV. Two conditions apply. The TV must be on and connected to your home network. The phone must be on the same Wi-Fi network. If both are true, do these steps:
- Press the power button on the TV to turn it on. LG says that this button works when key lock is on.
- Connect your phone to the Wi-Fi network of the TV.
- Open a remote app and connect it to the TV. For the first connection, see the next section.
- In the app, press the menu button or the settings button.
- Find the key lock setting. On an LG TV, LG gives Menu, then General, then Key Lock Function. Another LG page gives General Functions, then Key Lock. On a TCL TV, look in the parental controls for the front panel lock.
- Set the lock to Off.
- Press a button on the TV to make sure that it works again.
LG's key lock pages name the TV remote and do not mention phone apps. A remote app sends the same arrow, OK and menu commands over the network, so it opens the same menu. If the menu names on your TV are different, read the manual for your model.
| App | Works with | What it needs |
|---|---|---|
| SmartThings | Samsung TVs | A Samsung account, and the TV connected to the app first |
| LG ThinQ | LG TVs | An LG account, and the same 2.4 GHz Wi-Fi network |
| Google TV | Google TV and Android TV | A code from the TV screen, typed into the app |
| Tivi | Samsung, LG, Android TV and Google TV | No account; the same Wi-Fi network |
LG says that LG ThinQ has controls like the Magic Remote, with arrow keys and an OK button.
The apps from Samsung and LG each control one brand, and each asks for an account. Tivi is a universal TV remote app for iPhone from Nefarius Apps. It finds the TVs on your Wi-Fi and controls Samsung, LG, Android TV and Google TV sets without an account. Its remote has an arrow pad, an OK button, and home, back and menu buttons. With these buttons, you open the menu and move to the key lock setting. Tivi does not control Roku devices, Fire TV devices or Apple TV, and it cannot reach a TV that is not on your network.
For the full set-up, read how to use your iPhone as a TV remote. If the TV does not appear in the app, go through the checklist for a TV that doesn't show up.
Connect the app for the first time without a remote
The first connection between a remote app and a TV needs a confirmation. On LG, Android TV and Google TV, you give it on the phone, so the locked buttons do not matter:
- When Tivi connects to an LG TV, the TV shows a PIN, and you type the PIN into the app. The LG pairing PIN article gives the details.
- An Android TV or a Google TV shows a code. Google says to tap TVs nearby in the Google TV app, select the TV and enter the code. Tivi uses a code too. See controlling an Android TV or Google TV from an iPhone.
A Samsung TV is different. It shows a prompt that asks if it can allow the device, and you answer on the TV. If the buttons on the TV are locked, they cannot answer the prompt. A Samsung TV that allowed Tivi before does not ask again, because Tivi keeps the token from the first connection. Samsung's allow-device prompt explains how the prompt works.
If the TV is not on your Wi-Fi
A phone app cannot find a TV that is not on your network. The usual way to connect a TV to Wi-Fi is through its menu, and key lock blocks the buttons that open it. Two methods do not use the Wi-Fi menu. If the TV used Wi-Fi before, give the new network the name and password of the old one. If the TV has a LAN port, connect it to the router with an Ethernet cable. The guide on how to connect a TV to Wi-Fi without a remote gives the steps and their limits.
Use a replacement or universal remote
If a phone app cannot reach the TV, use a physical remote. A TV that is not a smart TV has no network connection for a phone app, so it needs an infrared remote. Two types work:
- the remote for your TV model, from the TV maker or a parts seller
- a universal remote that lists your TV brand
Find the model code on the label on the back of the TV before you buy. The guide on what to do when you lose the TV remote shows where to find it and where to get a replacement. When the remote works, open the menu, go to the key lock setting and set it to Off.
An iPhone cannot be the infrared remote, because it has no infrared emitter. Some Android phones have one. The article on why an iPhone can't send infrared explains the options, such as a Wi-Fi-to-infrared bridge.
Fixes that the TV makers do not give
Videos and forum answers give many fixes that the TV makers do not document.
LG does not give unplugging the TV as a fix. It names only the remote as the way to turn the key lock off. In one Reddit thread, the owner of a 2014 TV unplugged it for days and held the power and volume-down buttons. The key lock stayed on.
LG does not give button combinations either. In a 2026 thread, the owner of an LG TV from about 2006 tried every button and combination, and the key lock stayed on. The replies in these threads give different combinations, such as holding the power button for 10 seconds. No TV maker page in this article gives a combination.
Some videos also suggest a hard reset or a factory reset. The key lock pages from LG give no reset as a fix. They give the remote.
Hotel TVs
A hotel can lock the buttons of its TVs in hotel mode. Samsung's installation manual for its HG series of hotel TVs lists four Panel Button Lock settings:
| Setting | What it does |
|---|---|
| Unlock | Unlocks all panel keys |
| Lock | Locks all panel keys |
| OnlyPower | Locks all panel keys except the Power key |
| Menu/Source | Locks the Menu and Source keys |
The installer sets these in a hotel menu, with a Samsung remote. The same menu can hide the main menu and set the volume and the channel at power-on. If you are a guest, ask the front desk. Do not try to change the hotel's settings. If you bought a used hotel TV, use the installation manual for its model code.
The short version
Key lock stops the buttons on the TV, not the remote. LG says that only the remote can turn it off, and that the power button still works. So turn the TV on with its power button. If it is a smart TV on your Wi-Fi, connect a phone remote app, open the menu and set Key Lock to Off. LG, Android TV and Google TV sets pair with a code that you type on the phone. If the TV is not on a network, use a replacement remote or a universal infrared remote. Unplugging the TV and button combinations are not fixes that the TV makers give.
Common questions
Does key lock also lock the power button?
On LG TVs, no. LG says that the power button on the TV is available all the time. On Samsung hotel TVs, it depends on the setting: Lock locks all panel keys, and OnlyPower leaves the power key free. On other brands, read the manual for your model.
Can I turn off key lock on an LG TV with my iPhone?
Yes, if the TV is a smart TV that is on and connected to the same Wi-Fi network as the iPhone. Use LG ThinQ or Tivi as the remote, open the menu and set Key Lock to Off. With Tivi, the TV shows a PIN that you type on the iPhone, so the locked buttons do not stop the first connection. An older LG TV that is not smart needs an infrared remote.
How do I unlock the panel keys on a Samsung TV without a remote?
Samsung documents Panel Button Lock for its hotel TVs, which the installer sets in a hotel menu with a remote. In a hotel, ask the front desk. For a Samsung TV at home that is on your Wi-Fi, use SmartThings or another app that connected to it before. Otherwise, use a Samsung remote or a universal remote.
Does unplugging the TV turn off key lock?
LG does not give it as a fix. LG gives the remote as the only way to turn the key lock off. In one Reddit thread, an owner unplugged a key-locked TV for days, and the lock stayed on. Use a phone app or an infrared remote instead.
Sources
- LG (2024). Are you seeking to unlock the keys when the Key Locked message appears on the TV after TV button operation?
- LG (2025). How to fix a key locked TV when the remote control buttons aren't working?
- LG (2016). Key locked message appears when pressing the button on TV body.
- LG (2026). How to Set or Disable a Password on Your LG TV.
- LG (2024). LG TV - How to Set Up the LG ThinQ App on Your LG Smart TV.
- TCL. What are the parental control features found on recent TCL television models?
- Samsung (2026). How to Control a Samsung TV without a Remote.
- Samsung (2019). LED TV Installation manual, HG series hotel TVs.
- Google. Cast, connect & control your TV with the Google TV app.
- Reddit r/techsupport (2021). TV stuck on key lock and I don't have a remote.
- Reddit r/techsupport (2026). LG tv key lock mode stuck.