Users often need to replace a network adapter or update drivers, but don't know the exact model of the installed hardware. This is especially relevant: How do I find out which Wi-Fi module I have? This is common on tablets when standard operating system tools display only a general name or hide details entirely. This may be necessary when purchasing an external antenna, setting up specific operating modes, or diagnosing an unstable connection.
The difficulty in identification lies in the fact that tablet manufacturers often use custom versions of operating systems that hide technical information from the user. Furthermore, chipsets may be labeled differently depending on the vendor. In this article, we'll look at proven methods for determining gland without having to disassemble the device, which is especially important for maintaining the warranty.
There are several ways to obtain information, from using specialized apps to viewing system logs. The method you choose depends on the operating system installed on your device. Windows, Android or iOSEach platform has its own nuances that must be taken into account to obtain reliable data.
Using specialized Android applications
The easiest and safest way to get information about Wi-Fi module On an Android tablet, use third-party utilities. The default system settings usually only show the MAC address and connection status, but don't reveal the chip model. Diagnostic apps can read system files and produce a detailed report. iron.
One of the most popular programs is AIDA64 or Device Info HWOnce installed, the app scans the system and displays the data in a convenient format. Find the network or Wi-Fi section, which will list the chip manufacturer and model. This allows for quick identification. Realtek, Broadcom or Qualcomm without deep diving into the codes.
⚠️ Important: When installing diagnostic tools from unofficial sources, always check the requested permissions. Some apps may require access to personal data, which is not necessary for simply checking your Wi-Fi adapter model.
It is important to pay attention to the system kernel version, which is also shown by these programs. If driver If the app isn't working correctly, it may fail to recognize the exact model, displaying a generic name instead. In such cases, it's worth trying alternative methods or checking for firmware updates.
- 📱 Download AIDA64 from the Google Play Store for a detailed component analysis.
- 📱 Use Device Info HW if the first application does not detect the chip.
- 📱 Pay attention to the "Network" tab in the program interface.
Once you've received the data, write down the chip model. This will be useful if you decide to look for alternatives. drivers or patches to improve signal reception. Some tablet models, especially Chinese brands, may use different module versions within the same device line, so checking your specific unit is critical.
Checking through Device Manager on Windows tablets
If your tablet is running Windows (eg Surface or devices based on Intel Atom), the identification process becomes much more transparent. Microsoft's operating system provides built-in tools for managing hardware. To find out the model, go to Control Panel → Device Manager.
In the window that opens, find the "Network Adapters" section. Your wireless module will be listed there. However, often only a generic name is displayed, such as "Wireless Network Adapter." To get real information about vendor and the device, you need to go to the properties and look Equipment ID.
☑️ Check in Device Manager
Select "Hardware ID" from the drop-down list. You will see lines like PCI\VEN_8086&DEV_08B1. Here VEN — this is the manufacturer’s code (Vendor ID), and DEV — the device code (Device ID). Knowing these codes, you can accurately determine which chip is installed, even if the driver calls it something else.
To decipher codes, it is convenient to use online databases by entering values VEN And DEVThis is especially useful if the standard driver doesn't work or the system identifies the device as "Unknown Device." Correct identification will allow you to download the required driver. driver from the official website of the chip manufacturer, not the tablet.
| VEN Code (Manufacturer) | Company | Example DEV (Device) |
|---|---|---|
| 8086 | Intel Corporation | 08B1 (Intel Dual Band Wireless-AC) |
| 10EC | Realtek Semiconductor | 8179 (RTL8179 USB) |
| 14E4 | Broadcom Corporation | 43BA (BCM4356 Wi-Fi) |
| 168C | Atheros Communications | 0032 (QCA9377) |
Using the hardware ID is the most reliable method for Windows-tablets. It allows you to ignore marketing names and see the actual hardware. This knowledge is essential when reinstalling the system or deeply configuring the network.
Technical Methods: ADB and Android System Logs
For advanced users who own a tablet Android, there is a more in-depth method of checking through the debug bridge ADB (Android Debug Bridge). This method doesn't require installing any additional apps and provides access to raw system data. You'll need to connect your tablet to your computer and launch the command line.
Enter the command adb shell dumpsys wifiThe output will contain a lot of information, but you should look for lines containing the names of drivers or kernel modules. You can often find mentions of bcmsdh (for Broadcom) or rtw (for Realtek). This allows you to understand which one exactly driver loaded into the kernel.
adb shell cat /proc/net/wirelessAnother option is to view the kernel logs immediately after the device boots. The command adb logcat | grep -i wifi will show the wireless module's initialization process. The first lines of the log usually indicate the exact chip model it reports to the system upon startup. This is the "gold standard" of diagnostics.
⚠️ Important: To use ADB, you must enable USB debugging in the Developer Options menu. Be careful when entering commands, as incorrect actions may result in system instability.
If you don't have access to a computer, you can use a terminal emulator directly on your tablet (root access is required for some commands). The command dmesg | grep -i firmware often provides information about the downloaded firmware for the Wi-Fi module, the file name of which can be used to determine the manufacturer.
Hardware identification by chip marking
When software methods fail (for example, the module is burned out or not detected by the system), the only option left is a physical inspection. This method is only suitable for those willing to remove the tablet's back cover. On the board, the Wi-Fi module looks like a small, shielded metal pad or a black chip with markings.
Most often, the module is a separate board connected via a connector. M.2 or Mini PCIe, or soldered directly to the motherboard. If it's a removable module, its metal shield will always have a sticker or engraving with the model. Popular markings include Intel 7260, Realtek 8821 and others.
- 🔍 Remove the back cover of the tablet by unscrewing all screws (check the hidden screws under the feet).
- 🔍 Locate the antenna wires (usually black and white) going to the small module.
- 🔍 Read the markings on the metal screen or the chip itself under a magnifying glass.
If the module is integrated into the main processor (SoC), you won't find a separate Wi-Fi chip. In such cases (often found in budget tablets) MediaTek or old ones IntelWi-Fi functionality is integrated into the processor's crystal. In this case, you need to check the specifications of your specific CPU model.
When disassembling, be extremely careful with the antenna cables. They are very thin and are secured with clips that are easily damaged. Don't pull on the wires; instead, gently pry the connectors. Damage to the antenna will prevent even a functioning module from receiving a signal.
Driver compatibility issues and vendor specifics
One of the main difficulties is the situation when there is only one physical module, but the drivers for it in the system are missing or conflicting. Tablet manufacturers often use a standard chip. Broadcom or Atheros and write their own driver wrapper for it. If you try to install a "clean" driver from the chip manufacturer's website, it may not install.
In such cases, searching helps INF file devices. In Windows Device Manager, you can try updating the driver manually by specifying the folder with the unpacked drivers. The system will scan the files and, if it finds a match, Equipment ID, will offer to install a compatible version.
Problems often arise after updating the operating system. Old module may stop working correctly with a new kernel version. On Android, this is resolved with patches or custom kernels; on Windows, by rolling back the driver or searching for a modified version from the community.
⚠️ Note: Interfaces and menu names may vary depending on the OS version and manufacturer's shell. If you don't find an exact match, look for similar items in the "About System" or "About Device" sections.
It's also worth keeping in mind that some tablets have dual-band modules (2.4 GHz and 5 GHz), while others only have single-band. When searching for drivers, be sure to check for supported bands, otherwise you may limit your internet speed.
iOS and iPadOS Specifics: System Limitations
For device owners Apple (iPad) It's worth knowing that Apple has made technical information about the hardware as private as possible. Find out the exact model of the Wi-Fi module (for example, Broadcom BCM43xx) is not possible using standard tools or through settings. System iOS does not provide such data to the user.
The only way to find out the model is to find a teardown of your specific iPad model on specialized sites like iFixit or find FCC (Federal Communications Commission) documentation. In FCC documents, which are required for certification in the US, manufacturers are required to list the radio modules they use.
To diagnose Wi-Fi issues on your iPad, use the built-in test. Go to Settings → Wi-Fi and click the "i" icon next to your network. There you can run a speed test or reset network settings, which often helps with module software errors.
If your iPad stops detecting networks, the problem is most often not with the physical module, but with a software glitch or profile conflict. Try resetting your network settings (General → Reset → Reset network settings). This will not delete your data, but will reset your network settings to factory defaults.
Is it possible to replace the Wi-Fi module in a tablet yourself?
In most modern tablets, the Wi-Fi module is either soldered onto the motherboard (especially in iPads and slim Android tablets) or is a dedicated board specific to the specific model. Replacement is only possible if the module uses the M.2 or Mini PCIe form factor and is accessible after disassembly. However, even in this case, specific drivers may be required.
Why does the tablet see 2.4 GHz networks, but not 5 GHz?
This may mean that your Wi-Fi module It's single-channel and doesn't support the 5 GHz band. Or the driver isn't installed correctly. Check your device's specifications: if it claims to support 802.11ac or ax, the module should see 5 GHz. If it only supports 802.11n, it likely doesn't have hardware support.
How to find out the Wi-Fi driver version on Android?
Go to Settings → About phone → Software info (the path may vary). The driver version can also often be seen in logs via ADB or in applications like AIDA64 In the "Network" section, the firmware file name and kernel version will be listed.
Does the module model affect internet speed?
Yes, directly. Old modules (802.11g/n) physically cannot provide the high speeds available to modern routers (Wi-Fi 6). In addition, different chips (Qualcomm against Realtek) may work differently with signals of a certain power or in noisy air conditions.
What to do if the equipment ID is not in the database?
If Equipment ID If the device isn't found, try searching by VID (Vendor ID) separately. Sometimes the device is detected as a composite device (for example, Bluetooth and Wi-Fi in a single module). In this case, look for drivers for the composite device or try installing drivers from a similar laptop from the same manufacturer.