How to replace the Wi-Fi module on a Samsung TV: a detailed guide with photos

If your TV Samsung stopped connecting to Wi-Fi, constantly loses connection or does not see the network at all, the problem may lie in a faulty Wi-Fi moduleThis failure is typical for models QLED, Crystal UHD And The Frame After 3-5 years of use—especially if the device frequently overheated or was subject to power surges. Replacing the module will cost less than buying a new TV, and with the right tools and patience, you can do it yourself.

Many users are afraid to disassemble the equipment, fearing damage to the matrix or boards. However, in Samsung provided a modular design: Wi-Fi adapter The module is usually located separately from the main board, making it easy to replace. The key is to select the correct part (original or compatible) and follow the instructions. In this article, we'll cover the entire process: from troubleshooting to configuring the new module.

⚠️ Important: If your TV is still under warranty, repairing it yourself will void it. In this case, contact a service center. Samsung — replacement will be performed free of charge upon confirmation of a manufacturing defect.

Signs of a faulty Wi-Fi module

Before disassembling the TV, make sure the problem is with the module itself, and not with the router or network settings. Here are the key symptoms of a malfunction. Wi-Fi adapter:

• 🔴 The TV does not find any networks, although other devices (smartphone, laptop) connect normally.
• 🔄 Wi-Fi periodically disconnects with an error "Network unavailable" or "IP address not received".
• 🐢 Internet speed on TV is 5-10 times lower than on other gadgets (checked via Speedtest in Smart Hub).
• 🔌 The cable connection (Ethernet) works stably, but not via Wi-Fi.
• 🔄 After resetting network settings, the problem returns after 1-2 days.

If at least 2-3 points match, there is a 90% chance that the driver is at fault. Wi-Fi moduleBut before replacing, check:

1. Restart your router and TV (disconnect from the network for 1 minute).
2. Update your TV firmware via Settings → Support → Software Update.
3. Reset network settings: Settings → General → Network → Network Reset.

If nothing helps, it’s time to prepare for replacement. On TV Samsung Modules most often fail between 2018 and 2026 BCM4356 (for QLED) and RTL8188 (for Crystal UHD), but the exact model of your part needs to be determined from the markings on the board.

How to find out the Wi-Fi module model in your TV

To purchase a compatible spare part, you need to accurately determine the module model. There are three ways:

1. According to the markings on the board. Disassemble the TV (instructions below) and find the module - usually a small board with antenna wires connected to the main board via a connector M.2 or mini PCIeIt will have a sticker with the name on it (for example, Samsung BN96-40953A or Murata 1FX75).
2. By TV model. Enter your TV's serial number (located on the back panel) on the website Samsung support — the original part number of the module may be indicated in the "Spare Parts" section.
3. From the photograph. Take a photo of the module and show it to the salesperson at the electronics store – they will help you find an equivalent.

Here is a compatibility chart for popular models. Samsung:

⚠️ Attention: Modules for QLED And Crystal UHD Not interchangeable! Also, pay attention to the connector version: M.2 Key A And Key E They look similar but have different pinouts.

Preparing for Replacement: Tools and Safety Precautions

To replace the module you will need:

• ✅ Screwdriver Torx T8 And T10 (for back cover fasteners).
• ✅ Plastic pick or guitar pick (to release the latches).
• ✅ Tweezers with curved ends (for working with antenna wires).
• ✅ Antistatic wristband or gloves (to prevent damage to the boards from static electricity).
• ✅ Thermal paste (if the module is attached to a radiator).
• ✅ Hair dryer (to warm up the glue on the lid, if it is glued).

Also prepare your work area:

1. Place the TV screen upside down down on a soft surface (towel or foam).
2. Disconnect all cables and let the TV cool down for 10-15 minutes (if it was on).
3. Take pictures of the locations of all screws and connectors before disassembling.

⚠️ Attention: Avoid touching display cables and circuit boards with bare hands—even a weak static discharge can damage them. If you don't have an antistatic wrist strap, regularly touch grounded metal objects (such as a radiator).

Disconnected the TV from the 220V network|

Prepared tools and spare parts|

Took a photo of the original state|

Put on an antistatic wristband or gloves|

I placed the TV on a soft surface with the screen down-->

Step-by-step instructions: how to disassemble a TV and replace the module

The disassembly process varies depending on the model, but the general outline is as follows:

1. Removing the back cover.

   Unscrew all the screws Torx T8/T10 around the perimeter of the lid. In models The Frame And QLED 2022+ the lid may be glued - carefully pry it off with a pick, warming it up with a hair dryer (temperature no higher than 60°C).

2. Disconnecting the antenna wires.

   The Wi-Fi module is usually located next to the mainboard and connected to it via a connector. M.2 or mini PCIe. Carefully disconnect the antenna wires (they are marked MAIN And AUX) with tweezers, pulling on the connector, not on the wire!

3. Removing the module.

   Loosen the screw securing the module to the connector and gently pull it out at a 30° angle. Do not force it. If the module does not come out, check that all latches are pressed in.

4. Installing a new module.

   Insert the new module into the slot at the same angle, secure it with a screw and connect the antenna wires (MAIN to the main connector, AUX — to the additional).

5. Assembly in reverse order.

   Make sure all cables and wires are connected tightly, then close the cover and tighten the screws.

In models QLED 2020–2026 The module may be screwed to the radiator - in this case, apply new thermal paste before installation.

What to do if the screws won't come off?

If the screws are stripped or do not give in, use:

1. Screw extractor (sold in hardware stores).

2. Rubber band - place it on the screw head and try to unscrew it with a screwdriver using force.

3. Superglue - Apply a drop onto a screwdriver, press it against the screw, let it dry for 1 minute and carefully unscrew it.

Do not use pliers - this will damage the board!

⚠️ Attention: On TV Samsung With One Connect Box (For example, Q90C, QN900C) The Wi-Fi module may be located in the external unit, not the TV itself. Check the documentation for your model before disassembling!

Setting up the TV after replacing the module

After installing the new module, you must:

1. Reset network settings.

   Go to Settings → General → Network → Network Reset and confirm the action. This will delete all saved networks and restore factory settings.

2. Reconnect to Wi-Fi.

   Select your network from the list, enter the password, and wait for the connection to complete. If the TV doesn't detect the network, check:

   • Are the antenna wires connected correctly? (MAIN And AUX).
   • Is Wi-Fi enabled in the settings (Settings → Network → Wireless Network).
   • Is the TV firmware updated (sometimes new modules require fresh software).

Check your connection speed.

Run a speed test in Smart Hub (application Speedtest) or through a browser. Normal indicators for Wi-Fi 5: at least 50 Mbps at 5 GHz.

If your TV still won't connect:

• 🔄 Try connecting it to a different network (for example, a smartphone in hotspot mode).
• 🔧 Check if your router supports the standard 802.11ac (Wi-Fi 5) or 802.11ax (Wi-Fi 6).
• 📱 Update your router firmware - sometimes compatibility issues can be resolved with an update.

1. Correct connection of antenna wires.

2. The tightness of the module’s fixation in the connector (the screw must be tightened all the way).

3. No damage to the board (scratches, chips).

In 90% of cases, the problem is solved by reinstalling the module.-->

Where to buy a Wi-Fi module for Samsung and how much does it cost?

Original modules can be ordered:

• 🛒 Official service centers SamsungThe price is higher, but compatibility is guaranteed. The part number can be found using the TV serial number.
• 🌍 AliExpress, eBay, Amazon. Cheaper, but risk buying a counterfeit. Look for sellers with a rating above 98% and reviews confirming compatibility with your model.
• 🏬 Local electronics stores. For example, Citylink, M.Video or DNS Sometimes they sell spare parts for TV.

Average prices for modules (2026):

Module type	Price (original)	Price (analogue)
M.2 (Key A+E) for QLED	2 000–3 500 ₽	1 200–2 000 ₽
mini PCIe for Crystal UHD	1 500–2 500 ₽	800–1 500 ₽
M.2 (Key E) for The Frame	2 500–4 000 ₽	1 800–2 500 ₽

⚠️ Attention: When purchasing an analogue, check with the seller whether it supports it MU-MIMO And Beamforming — these technologies are used in modern TVs for stable streaming video (Netflix, YouTube in 4K).

Before purchasing, please check:

• 🔍 Compatibility with your TV model (ask the seller or check reviews).
• 📦 All fasteners and antenna wires are included.
• 🔄 Possibility of return if the module is not suitable.

Common mistakes when replacing 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, your Wi-Fi speed will drop by 2-3 times. Always check the markings on the module and cables.
• 🔧 The screws are tightened too much. This could damage the connector or the board itself. Tighten the screws until they just stop.
• 🔥 Ignoring static electricity. Even if you don't feel the discharge, it can damage the circuitry. Use an antistatic wrist strap!
• 📱 No firmware update. New modules may not work with older software versions. Update your TV via USB or Smart Hub.
• 🔄 An attempt to insert the module "head-on". All modules M.2 And mini PCIe are installed at an angle of 30° and then pressed onto the connector.

If after replacement the TV:

- It doesn't turn on: check the connection of all cables and boards (the main board may have come loose).

- Doesn't see the network: Recheck the antenna wires and the module connector.

- Overheating: Apply thermal paste to the radiator (if the module is attached to it).

⚠️ Attention: If you've damaged a connector on the main board, repairs will cost between 5,000 and 10,000 rubles (board replacement). In this case, it's cheaper to take your device to a service center.

FAQ: Answers to Frequently Asked Questions

Is it possible to replace the Wi-Fi module with a more powerful one (for example, with Wi-Fi 6)?

Theoretically yes, but only if:

1. The new module has the same connector (M.2 Key A/E or mini PCIe).
2. The TV's main board supports the protocol. 802.11ax (this needs to be clarified in the model documentation).
3. You are prepared for possible problems with drivers (sometimes the TV does not recognize non-original modules).

For most users, it's better to buy the original module—it's guaranteed to work.

The TV doesn't detect the network after replacing the module. What should I do?

Check:

• Correct connection of antenna wires (MAIN And AUX).
• The tightness of the module’s fixation in the connector (sometimes gently rocking the module from side to side helps).
• Router settings: disable WPA3 (try it WPA2), change the Wi-Fi channel to 6 or 11 (for 2.4 GHz).
• Updating the TV firmware (the old software version may not support the new module).

If nothing helps, the module may be faulty - try returning it to the seller.

How long does it take to replace a module?

With the right tools and experience, it takes anywhere from 30 minutes to 1.5 hours. The longest part is:

• Carefully remove the back cover (especially if it is glued).
• Disconnecting the antenna wires (they are fragile and require care).
• Setting up the TV after replacement (software update, network connection).

If you are doing this for the first time, please allow 2-3 hours.

Is it possible to avoid replacing the module? Are there any alternatives?

Yes, if Wi-Fi is only needed for Smart Hub and streaming, you can use:

• 🔌 Ethernet adapter → Wi-Fi. Connect the cable from the router to the TV, and a USB Wi-Fi adapter (for example, TP-Link TL-WN725N).
• 📶 Powerline adapter. Transmits the Internet via electrical wiring (suitable if the router is far from the TV).
• 📱 USB modem. Some models Samsung support 4G modem connection via port USB.

But these solutions won't replace built-in Wi-Fi for functions like Screen Mirroring or control from a smartphone.

Where can I find a disassembly diagram for my Samsung model?

There are official diagrams:

• On the website Samsung support (section "Manuals and downloads").
• On iFixit (search by TV model).
• In service manuals on ElektroTanya (registration required).

It's also helpful to watch disassembly videos on YouTube - search by the exact model (for example, Samsung QE55Q60B disassembly).