Modern Samsung smartphones are equipped with advanced wireless communication modules, and users often need to know exactly the characteristics of their device. The protocol version Bluetooth directly affects the data transfer speed, sound quality in wireless headphones and the stability of the connection with smart watches or fitness bracelets. Many gadget owners wonder where exactly this technical information is hidden in the system, since it is not always obvious in the standard menu.
Determining the exact specification can be critical when purchasing new accessories. For example, for high-resolution codecs like LDAC or aptX HD to work, support for certain versions of the protocol is required on both the phone and headphones. If your device is outdated, you may encounter limitations in signal range or the inability to connect several devices at the same time.
In this article we will look at all available verification methods: from using the engineering menu and hidden codes to installing specialized utilities from the store. Google Play. You will learn how to interpret the received data and what to do if the system does not display the necessary information directly.
Checking through the “About phone” menu and settings
The most obvious, but not always working, method is to search for information in the standard settings section. In some shells One UI from Samsung, data on wireless modules is placed in a separate subsection, but most often this information is hidden from the eyes of the average user. Try going to Settings → Phone information → Software information.
Here you can find the build number or kernel version, but the specific Bluetooth version number (for example, 5.0 or 5.2) is often missing. This is done intentionally so as not to overload the interface with technical details. However, in some older models or with certain firmware versions, this line may be present next to the Android version.
⚠️ Attention: The settings menu interface may differ depending on the model of your Samsung (A, S or Note series) and the version of One UI installed. If you do not find the required line, this does not mean that the module is faulty.
If the standard path does not produce results, do not despair. There are more reliable methods that allow you to “look” deeper into the system. Using third-party tools or engineering codes often gives more accurate results than the standard menu.
Before searching for information, make sure the Bluetooth module is turned on. When turned off, some diagnostic utilities may not correctly read data about the chip.
Using the engineering menu and service codes
Samsung devices have powerful built-in diagnostic tools, which can be accessed through a special testing menu. This method does not require the installation of additional software and works on most models of the brand. To enter the menu, you need to open the “Phone” application (dialer) and enter a special code.
Dial the combination on the keyboard ##4636##. If the code matches your firmware, a hidden Test menu will open. Select "Bluetooth Information" or "Bluetooth Information". This section often displays the device address, status and, most importantly, the protocol version.
- 📱 Availability: The code works on most Samsung smartphones, but may be blocked by the telecom operator in some regions.
- 🔍 Accuracy: Data is taken directly from device drivers, so it is as reliable as possible.
- ⚙️ Security: Viewing information in this menu is safe, but do not change the settings if you are not sure of their purpose.
If the first code did not work, try the Samsung-specific alternative: #0#. This is the general hardware testing menu. Although it is more focused on checking the screen and sensor, in some firmware versions there is a tab with information about wireless interfaces.
☑️ Checking through the engineering menu
It is worth considering that manufacturers can block access to these menus in updated versions of Android for security purposes. If the screen blinks but the menu does not appear, it means that this method is not available on your device, and you should proceed to using third-party software.
Third-party diagnostic applications
When the built-in tools do not help, specialized utilities from the application store come to the rescue. Developers create tools that read system logs and configuration files, providing the user with a complete picture of the hardware. This is the most universal method for any version of Android.
One of the most popular and reliable applications is Bluetooth Version Checker or AIDA64. After installation and launch, the app scans the system. You do not need to have superuser rights (Root), since reading the Bluetooth version is available to regular applications.
| Application name | Size | Main function | Presence of advertising |
|---|---|---|---|
| Bluetooth Version Checker | ~2 MB | Only checking BT version | Minimum |
| AIDA64 | ~15 MB | Full system diagnostics | No (free) |
| CPU-Z | ~10 MB | Information about the processor and network | Yes |
| Device Info HW | ~5 MB | Details of cameras and sensors | Minimum |
In the application AIDA64 information is usually located in the “Network” section or "Devices". It will indicate not only the version number, but also the profile of supported functions. This is especially useful if you plan to use your phone as a hotspot or to transfer large files.
Why do apps show different data?
Sometimes different utilities can display slightly different information. This is because one application reads data from the kernel configuration file, while the other interrogates the chip itself via the Android API. Trust data from specialized utilities like AIDA64.
Searching for information by processor model
If software methods do not provide a definite answer, you can use a technical approach. The Bluetooth module in Samsung smartphones is almost always integrated into the main processor (SoC) or located in the same housing as the Wi-Fi module. Knowing the processor model, you can accurately determine the supported version of the standard.
First find out the model of your chipset through the settings (Settings → Phone information) or application CPU-Z. Then use the official website of the processor manufacturer - Qualcomm, Samsung Exynos or MediaTek. The chip's specifications always indicate support for wireless interfaces.
For example, the processor Snapdragon 8 Gen 1 guarantees support for Bluetooth 5.2, while the older one Snapdragon 730 is limited to version 5.0. This method requires a little more time to search, but it gives a 100% guarantee of accuracy, as it is based on the physical characteristics of the hardware.
The Bluetooth version is hardwired into the processor hardware and cannot be changed by a software update. If the chip only supports 5.0, no firmware will make it 5.3.
This method is especially relevant for owners of custom firmware or devices in which the software interface has been changed beyond recognition. The technical specifications of the chipset remain the same regardless of the version of Android.
Version and Capability Correspondence Table
Understanding which version you have detected will help you evaluate the capabilities of your smartphone. Each new generation of the standard brings improvements in power consumption, speed and communication range. Below is a table that will help decipher the received data.
| Bluetooth version | Year of release | Max. speed | Key features |
|---|---|---|---|
| 4.2 | 2014 | 1 Mbit/s | Basic data protection |
| 5.0 | 2016 | 2 Mbit/s | Increased range (up to 240 m) |
| 5.1 | 2019 | 2 Mbit/s | Determination of signal direction |
| 5.2 | 2020 | 2 Mbit/s | Improved sound (LE Audio) |
| 5.3/5.4 | 2021+ | 2+ Mbit/s | Stability and low latency |
Please note that actual file transfer speeds are often lower than advertised due to protocol overhead and over-the-air interference. However, version 5.0 and higher provides a much more stable connection in saturated radio conditions, for example, in the subway or office.
Frequent problems and ways to solve them
Sometimes users are faced with a situation where the phone detects the version correctly, but the connection with the devices is unstable. This may not be due to the protocol version, but to software glitches or configuration conflicts. In such cases, simply rebooting the module may help.
Try resetting the network settings. This action will delete all saved Bluetooth pairs and Wi-Fi settings, but often solves problems with devices being invisible or connections being lost. Path to reset: Settings → General controls → Reset → Reset network settings.
⚠️ Attention: Resetting network settings will delete all saved passwords from Wi-Fi access points. Make sure you remember your home network password before performing this operation.
It is also worth checking for software updates. Samsung regularly releases patches that improve the performance of wireless drivers. Even if the Bluetooth hardware version does not change, optimizing the software stack can significantly improve the quality of the connection.
If Bluetooth is unstable, try disabling power saving for specific applications. The power saving mode may artificially limit the transmitter power.
FAQ: Frequently Asked Questions
Is it possible to update the Bluetooth version on Samsung via firmware?
No, the Bluetooth version is determined by the hardware chip built into the processor. A software update (One UI or Android) can improve stability and add new codecs, but cannot change the physical version of the standard (for example, from 4.2 to 5.0).
Why does the application show version 4.0 even though the phone is new?
This may be an application error or an access restriction. Try using another utility, for example AIDA64. It's also possible that you're looking at the profile version rather than the Bluetooth kernel version. In rare cases, this is a bug of a specific version of Android.
Does the Bluetooth version affect the quality of calls?
Yes, newer versions (starting from 5.0) provide better protection against interference and a more stable connection, which is critical for the quality of voice calls through the headset. However, the voice encoding itself depends more on the codecs supported by both devices.
Where can I find the exact model of the Bluetooth chip?
The exact model of the chip (for example, Qualcomm WCN3990) can usually only be found in detailed technical reports (teardown) on sites like GSMArena or in system logs if you have root access. For an ordinary user, it is enough to know the protocol version.