How to enable Wi-Fi on a Lenovo B50-70 laptop: all the methods, from keys to drivers.

Laptop Lenovo B50-70 — a popular model among users who value a balance of price and functionality. However, many encounter a problem: after purchasing, reinstalling Windows, or leaving it idle for a long time, the wireless network suddenly stops working. The causes can range from a simple disabled key to missing drivers or hardware malfunctions. This article will help you figure it out. How to turn on Wi-Fi on a Lenovo B50-70 in every possible way, even if you are new to technology.

We will consider not only standard methods through keyboard shortcuts And control Panel, but also rare cases when the problem lies in the settings BIOS or hardware conflicts. And if your laptop stubbornly refuses to connect to the network, you'll find a troubleshooting checklist.

1. Quick way: keyboard shortcut to turn on Wi-Fi

On most laptops Lenovo, including the model B50-70, wireless modules are controlled hot keysThis is the simplest method, which works in 80% of cases.

Find the button on your keyboard Fn (usually in the lower left corner) and an antenna icon F7 or F2 (depending on the keyboard version). Lenovo B50-70 most often it is Fn + F7Press the combination once - the Wi-Fi indicator (if available) should light up orange or blue.

• 🔹 If the indicator does not light up: Try pressing the combination again or hold it down Fn 2-3 seconds.
• 🔹 No reaction? Check if the module is disabled in BIOS (more on this below).
• 🔹 The key doesn't work? Your keyboard driver may need to be updated (Section 4).

⚠️ Attention: On some modifications B50-70 (for example, with a keyboard without backlighting) the combination may differ. If Fn + F7 didn't work, try Fn + F2 or Fn + PrtSc.

2. Turn on Wi-Fi via the Windows Control Panel

If hotkeys don't help, try activating the adapter through the system. This method works regardless of laptop model, but requires Wi-Fi drivers (at least the basic ones) to be installed.

Open Control Panel (click Win + R, enter control and press Enter). Go to the section Network and Internet → Network and Sharing Center. On the left, select Changing adapter settings.

Here you will see a list of network connections. Find Wireless network (or Wireless Network Connection). If the icon is gray, right-click and select Turn on.

• 📡 Adapter not listed? This means the driver is not installed (see section 4).
• 🔌 Network is on but won't connect? Check if Wi-Fi is disabled in BIOS (section 3).
• ⚙️ The network connects, but there is no internet? There may be a problem with your router or your ISP.

3. Checking BIOS settings: what to do if Wi-Fi is disabled at the hardware level

Sometimes the wireless module is disabled in the settings BIOS/UEFIThis can happen after a factory reset, firmware update, or an unsuccessful overclocking attempt. Lenovo B50-70 entrance to BIOS is carried out by the key F2 or Del when turning on the laptop (press repeatedly immediately after pressing the power button).

IN BIOS find the section Advanced or ConfigurationLook for settings related to wireless networks:

• Wireless LAN — must be able to Enabled.
• Wi-Fi or WLAN Radio - turn on if disabled.
• Airplane Mode — must be Disabled.

⚠️ Attention: If you've never been in BIOS, it's best not to change other settings, as this may lead to unstable operation of the laptop. After making changes, save the settings (F10) and reboot the device.

What to do if you can't find Wi-Fi settings in BIOS?

On some Lenovo BIOS versions, wireless network options are hidden in the "Onboard Devices" or "Integrated Peripherals" submenus. If you can't find them, reset the BIOS to factory settings (select "Load Default Settings"). However, keep in mind that this may change other settings (boot priority, security, etc.).

4. Installing or updating Wi-Fi drivers

If the previous methods did not work, the problem is most likely in the drivers. Lenovo B50-70 The most commonly used wireless adapter is from Broadcom, Intel or Qualcomm AtherosWithout the correct driver, Windows simply "doesn't see" the Wi-Fi module.

Download the driver from Lenovo's official website (enter your laptop model in the search). An alternative is to use device Manager:

1. Click Win + X → select device Manager.
2. Find the section Network adapters.
3. If there is a device with an exclamation mark (for example, Unknown Device) - right-click → Update driver → Automatic search.

Critical Information: Lenovo B50-70 models with Windows 8/8.1 preinstalled often experience driver conflicts after upgrading to Windows 10/11. In this case, you must manually uninstall the old driver through Device Manager (right-click → Uninstall) and install the latest version from Lenovo's website.

• 🔧 The driver is installed, but Wi-Fi is not working? Try rolling back the driver (in Device Manager → Properties → Driver → Roll Back Driver).
• 🔄 Wi-Fi disappeared after the update? Uninstall the driver and reinstall it.
• 💻 No internet access to download? Use another PC or mobile phone to download the driver to the flash drive.

5. Diagnosing hardware problems: when software isn't to blame

If none of the methods helped, the problem may be in the wireless module itself. Lenovo B50-70 It's located under a cover on the bottom of the laptop (usually next to the fan). Here are the signs of a hardware failure:

• 🚨 Wi-Fi does not turn on in any way, although the indicator is on.
• 🔌 The laptop doesn't see it not a single one network, even after reinstalling Windows.
• 🔥 The module gets very hot or smells like burning (extremely rare, but possible).

To check:

1. Turn off the laptop and remove the battery.
2. Remove the back cover (you will need a Phillips screwdriver).
3. Find the Wi-Fi module - it looks like a small board with antennas (connected to the connector M.2 or mini-PCIe).
4. Carefully remove the module, clean the contacts with an eraser and insert it back.

⚠️ Attention: If you don't have experience disassembling laptops, it's better to contact a service center. Lenovo B50-70 If you remove the module carelessly, you may damage the antenna cable or connector.

6. Alternative ways to connect to the Internet

While you're getting the hang of Wi-Fi, there are other connection options you can use:

• 🌐 Ethernet cable: Connect your laptop directly to the router via the port RJ-45.
• 📱 USB modem: Use your smartphone as a modem or 4G router.
• 🔄 Bluetooth terminal: Some smartphones can distribute the Internet via Bluetooth (slower than Wi-Fi, but it works).

If you urgently need to download a driver for Wi-Fi, but don't have another device:

1. Connect your laptop to the router with a cable.
2. Download the driver from the official website Lenovo.
3. Install it and reboot your device.

⚠️ Attention: On Lenovo B50-70 With Windows 10/11, resetting network settings sometimes helps. To do this, open Settings → Network & Internet → Status → Network resetAfter rebooting, all network adapters will return to factory settings.

7. Common mistakes and their solutions

Let's look at the typical problems that owners face. Lenovo B50-70 When setting up Wi-Fi:

If your problem is not described above, try:

• 🔍 Launch troubleshooting (right click on the Wi-Fi icon → Troubleshooting).
• 🔄 Reset router settings (button Reset on the back panel).
• 📋 Check if your antivirus or firewall is blocking the connection.

Frequently Asked Questions (FAQ)

Why doesn't the Wi-Fi indicator light on my Lenovo B50-70 even after pressing Fn+F7?

This could mean:

1. The adapter is disabled in BIOS (see section 3).
2. The driver is not installed or is damaged (section 4).
3. Hardware failure of the module (section 5).

Check first BIOS and drivers. If this doesn't help, contact the service center.

Is it possible to turn on Wi-Fi on a Lenovo B50-70 without a keyboard (for example, if the keys are broken)?

Yes, there are two ways:

1. Through Control Panel (section 2).
2. Through device Manager: Find your Wi-Fi adapter → right click → Engage.

If the keyboard is completely inoperative, connect an external one via USB.

Wi-Fi stopped working after a Windows update. What should I do?

This is a problem for Lenovo B50-70 When upgrading from Windows 8/8.1 to 10/11. Solution:

1. Uninstall your current Wi-Fi driver Device Manager.
2. Download the driver from the website Lenovo (choose the version for your OS!).
3. Install it manually (right button on the adapter → Update driver → Search this computer).

If that doesn't help, try rolling back to a previous version of Windows.

How do I find the Wi-Fi adapter model on my Lenovo B50-70?

There are three ways:

1. Through device Manager: Network adapters → module name (for example, Broadcom 802.11n).
2. Through command line: enter wmic nic get name, manufacturer.
3. Physically: disassemble the laptop and look at the markings on the module (e.g. BCM94313HMGB).

Is it possible to replace the Wi-Fi module on the Lenovo B50-70 with a more powerful one?

Yes, but with some reservations:

• 🔧 The laptop supports modules of the format M.2 2230 (Key A/E) or mini-PCIe (depending on the motherboard revision).
• 📶 Maximum speed is limited by the chipset: even if you install Wi-Fi 6, the actual speed will not exceed 300-450 Mbps (because of PCIe x1).
• 🛠️ Recommended models for upgrade: Intel AX200 (Wi-Fi 6), Broadcom BCM94360 (best compatibility).

Before purchasing, check if yours has it. BIOS disable option whitelist (list of allowed modules) - on some versions Lenovo B50-70 It can block non-original adapters.