Where is the Wi-Fi module located on an LG Smart TV: Finding, replacing, and diagnosing

If your LG Smart TV I stopped connecting to Wi-Fi, and rebooting the router and resetting the settings did not help. The problem may lie in the hardware - for example, in a faulty Wi-Fi moduleBut before taking your TV to a service center, it's worth figuring out where exactly this module is located and whether it can be replaced without special skills.

Depending on the model LG Smart TV (series NanoCell, OLED, QNED or budget LED) The module's location may vary. In older TVs (pre-2018), it's often soldered to the motherboard, while in newer models, it's a separate, removable board. We'll cover in detail how to locate the module in popular models, what tools are needed for diagnostics, and what to do if replacement is unavoidable.

Important: If you've never disassembled a device before, it's best to leave the repair to professionals. But if you're willing to take the risk, our instructions will help you save money on service. Let's start with how to determine whether the problem is with the module itself, and not a software glitch.

How to tell if your LG Smart TV's Wi-Fi module is faulty

Before disassembling your TV, make sure the problem isn't with your router or network settings. Here are the key signs of hardware failure. Wi-Fi module:

• 🔴 The TV does not see any Wi-Fi networks, although other devices (smartphone, laptop) connect normally.
• 🔄 Constant connection drops, even if the router is nearby and the signal is stable.
• ⚡ An error appears on the screen No network adapter or Wi-Fi is disabled in the settings.
• 🔧 After resetting to factory settings, the problem does not go away.
• 📶 On the menu Network → Wi-Fi Settings There is no network search button.

If you experience any of these symptoms, it's likely a hardware issue. But before disassembling the TV, try one more test: connect LG Smart TV to the Internet via cable EthernetIf the wired connection works but Wi-Fi doesn't, this is almost a 100% confirmation that the module is faulty.

Where is the Wi-Fi module located in different series of LG TVs?

The location of the module depends on TV designs and year of release. We've collected data on popular series LG (Applicable to models from 2016 to 2026). If your model isn't listed, look for the closest series—the layout is usually similar.

In LG TVs from 2022–2026 (OLED and QNED series), the Wi-Fi module is often combined with Bluetooth and is labeled LGE WF-BT or Murata 1FWIt can be replaced without soldering if you find a similar one with the same part number.

To pinpoint the exact location in your model, locate it service manual (look for the model code on the back cover, for example, OLED55C1PUB). If there is no manual, use photographs of disassembled TVs of the same series as a guide - they can be found on forums iFixit or AVS Forum.

Step-by-step instructions: how to access the Wi-Fi module

Disassembling a TV LG Smart TV This requires care—there are many fragile parts inside (cables, antennas, LED strips). Follow the instructions and do not apply excessive force.

What you will need:

• 🔧 Screwdriver Torx T8/T10 (for most models).
• 🔨 A plastic pick or guitar pick to release the latches.
• 🧲 Magnetic screwdriver or tweezers (to avoid losing screws).
• 📸 Smartphone to photograph the process.
• 🧤 Antistatic wristband (optional, but recommended).

Procedure:

1. Unplug the TV and wait until it cools down completely (10–15 minutes).

2. Place it screen down on a soft surface (blanket, foam rubber).

3. Remove the back cover:

   • In models OLED And QNED The lid is secured with latches - use a pick to pry it up around the perimeter.
   • IN LED-TVs usually have screws in the corners (unscrew them).

Find the Wi-Fi module (see the table above). OLED It is most often hidden under a metal cover near the ports, LED - on the motherboard.

If the module is removable, carefully disconnect the antenna wires (they are thin, don't pull on them!). The screws that secure the module are usually marked. WF or BT/WF.

⚠️ Attention: On TV LG OLED 2020-2026 there may be an additional control board under the port cover (Control Board). Don't confuse it with the Wi-Fi module - the latter is usually smaller in size and has a marking mentioning it. Wireless or 802.11ac.

How to check the functionality of a Wi-Fi module without replacing it

Before buying a new module, make sure the old one is truly faulty. Here are a few diagnostic methods:

1. Checking via the service menu

On TV LG There's a hidden service menu where you can test hardware components. To access it:

1. Turn off the TV.
2. On the remote, press and hold Menu (or Settings on new remotes).
3. Without releasing the button, turn on the TV.
4. After 5 seconds the service menu will appear (if not, repeat with another button, for example, Volume -).

Find the section in the menu Wi-Fi Test or Network TestIf the module is not responding, you will see an error No Device or Fail.

2. Checking with a multimeter

If you have a multimeter, you can check the module's power supply:

• 🔋 Find the contacts on the module board 3.3V And GND (usually signed).
• 📊 Turn on the TV and measure the voltage between these contacts.
• 🔍 If there is no voltage, there is a problem with the power supply (the fuse on the motherboard may have blown).

3. Connecting an external USB Wi-Fi adapter

Some models LG Smart TV (For example, UK6300, UM7300) support external USB adapters. If the TV detects the network via such an adapter, this confirms a faulty built-in module.

⚠️ Attention: Not all USB adapters are compatible with LG Smart TVUse on-chip models Ralink RT5370 or Realtek RTL8188EU - They most often work without drivers.

What should I do if the TV doesn't turn on after disassembling it?

If after assembly the TV does not respond to the power button, check:

1. Are all cables connected (especially to the motherboard).

2. Are the contacts shorted (for example, a forgotten screw inside the case).

3. Is the back cover installed correctly? In some models it presses on the power button.

If the problem persists, turn off the TV for 30 minutes (the power capacitor will discharge) and try again.

Wi-Fi Module Replacement: Part Selection and Installation

If diagnostics confirm a faulty module, it needs to be replaced. The main thing is to find compatible partHere's how to do it:

1. Defining the module model

The module itself should have markings, for example:

• LGE WF-BT500 (For OLED C1/C2),
• Murata 1FW (For NanoCell 2020–2022),
• AzureWave AW-NM377 (for old people LED models).

Take a photo of the inscriptions and look for similar ones on AliExpress, eBay or in service centers. Original modules LG They are more expensive, but are guaranteed to be compatible.

2. Installing a new module

The installation process is the reverse of disassembly:

1. Carefully insert the module into the connector (do not force it - it should go in smoothly).
2. Connect the antenna wires (usually they are marked MAIN And AUX - don’t get confused!).
3. Secure the module with screws (do not overtighten!).
4. Assemble the TV, checking that all cables are connected.

⚠️ Attention: On TV LG OLED From 2021 to 2026, after replacing the module, you may need to reset the network settings. To do this, go to Settings → General → Reset → Reset network settings.

3. Where to buy the module

New and used modules can be found:

• 🛒 AliExpress — cheaper, but a long wait (look for sellers with a rating above 98%).
• 🔧 Service centers LG - original spare parts, but more expensive.
• 📦 eBay — used modules are often sold with a warranty.
• 🏬 Local TV repair shops sometimes sell spare parts from their warehouses.

Common Mistakes When Replacing a Wi-Fi Module and How to Avoid Them

Even experienced mechanics sometimes make mistakes that lead to further breakdowns. Here are the most common ones:

• 🔌 Incorrect antenna connection: If you get confused MAIN And AUX, the signal will be weak or absent altogether. Always check the markings on the module and cables.
• 🔥 Static electricity: Touching the circuit boards without an antistatic wrist strap can damage the microcircuits. Work on a wooden table, not a metal one.
• 🔧 Tightening the screws: This may damage the circuit board. Tighten the screws until they are just snug.
• 📶 Ignoring software updates: After replacing the module, update the TV firmware—sometimes new modules require fresh software.

Another common problem is that the TV doesn't detect the network after a replacement. In this case:

1. Check if the antennas are connected correctly.
2. Do a network reset (Settings → Network → Reset).
3. Update firmware via USB (if Wi-Fi is not working).

If all else fails, the new module may be incompatible or defective. In this case, contact the seller for a replacement.

Alternative ways to connect to the Internet if Wi-Fi isn't working

If replacing the module seems too complicated or expensive, alternative connection options can be used. LG Smart TV to the Internet:

• 🌐 Ethernet cable: The most reliable method. Modern TVs support speeds of up to 1 Gbps.
• 📡 Powerline adapters: They transmit internet through electrical wiring. This is ideal if the router is far away and running a cable is inconvenient.
• 📱 USB modem (4G/5G): Some models LG support USB modems (check the instructions).
• 🔄 Bridge mode on the router: Set up the second router in mode Bridge and connect it to the TV with a cable.

For models without an Ethernet port (for example, some LG OLED 4 mm thick) can be used USB-Ethernet adapterAny chip-based adapter will work. ASIX AX88179 - It is supported by most Smart TVs.

⚠️ Attention: On TV LG Support for USB adapters may be disabled via updates between 2023 and 2026. Before purchasing, check the forums to see if the adapter works with your model.

FAQ: Frequently asked questions about Wi-Fi modules in LG Smart TVs

Is it possible to repair the Wi-Fi module, or is it only replaceable?

In 90% of cases, repairing a module is uneconomical—it's easier to replace it. The exception is if only the fuse on the board has blown (it can be resoldered). However, this requires soldering skills and a multimeter.

How much does it cost to replace a Wi-Fi module at a service center?

The price depends on the TV model and region. On average:

• Diagnostics: 500–1000 RUB.
• Module replacement: 1500–3000 rubles (excluding the cost of the part).
• Module (new): from 2000 to 8000 rubles (the original is more expensive).

My LG TV only detects the 5 GHz network. Is this a module issue?

Not necessarily. It's possible that the router's compatibility mode is disabled. 802.11ac. Try:

1. Enable the router mode 802.11a/n/ac (and not only ax).
2. Set channel width 20/40 MHz (and not 80 MHz).
3. Disable WPA3 and leave only WPA2.

If this doesn’t help, the module may only support 2.4 GHz (relevant for older models).

After replacing the module, the TV won't turn on. What should I do?

Possible reasons:

• Short circuit (check if you have forgotten the screw inside the case).
• Unconnected cable to the motherboard.
• Damage to antenna cables (they must be intact and properly connected).

Disassemble the TV again and check all connections. If the problem persists, contact a service center.

Is it possible to use a Wi-Fi adapter instead of the built-in module?

Yes, but with some reservations:

• Only models with USB port and adapter support (check compatibility!).
• Speed ​​and stability will be worse than with the built-in module.
• Some functions (eg. LG ThinQ or AirPlay) may not work.

It is better to use adapters on chips Ralink RT5370 or Realtek RTL8188EU.