SigmaKey USB Driver Installation: Complete Guide for Windows 10 and 11
Installing the correct SigmaKey USB drivers is an important step when setting up SigmaKey or Sigma Plus on a Windows computer. Without the proper drivers, Windows may not recognize the SigmaKey dongle, SigmaBox, smart-card reader, or connected mobile phone.
This guide explains how to download official SigmaKey drivers, install them on Windows, connect your hardware, and fix common driver detection problems.
Important: SigmaKey provides different drivers for its Box or dongle and for supported mobile phone chipsets. These driver packages are not interchangeable. Always select the driver that matches the hardware you are connecting.
What Are SigmaKey USB Drivers?
SigmaKey USB drivers are software components that allow Windows to communicate with compatible SigmaKey hardware and supported mobile devices.
There are two main categories:
Box and dongle drivers: Allow Windows to recognize the SigmaKey dongle, SigmaBox, or card-reader hardware.
Phone USB drivers: Help Windows communicate with supported phones, including certain MediaTek, Qualcomm, Exynos, and other devices.
The official SigmaKey driver page provides separate packages for Box and dongle hardware, phone USB drivers, and recommended Virtual COM Port drivers.
Download SigmaKey USB Drivers from the Official Website
Official source
Download the drivers from the developer's website:
The official driver page currently lists the SigmaKey dongle driver version 1.7.26.0, a combined SigmaBox driver package, and separate phone USB driver packages. Check the page for the latest available files before installation.
Avoid modified driver packages, unofficial repacks, and files from unknown websites.
Types of SigmaKey USB Drivers
1. SigmaKey Dongle Driver
This driver helps Windows detect the SigmaKey USB dongle and its smart-card hardware.
2. SigmaBox Drivers
SigmaBox has its own driver package. The official website provides a combined package containing the required SigmaBox drivers.
3. MediaTek USB Drivers
These drivers are used for supported MediaTek-based phones. The official download page lists an MTK USB Driver package and additional device-specific drivers.
4. Qualcomm and Exynos Drivers
Some supported Qualcomm and Samsung Exynos devices require their own USB drivers. The official page provides a general driver package for Samsung Exynos and Qualcomm devices.
5. Virtual COM Port Drivers
Certain supported devices and connection methods use a COM port. SigmaKey lists recommended Prolific and FTDI Virtual COM Port driver packages.
How to Install SigmaKey USB Drivers on Windows
Follow these steps to install the correct drivers.
Step 1: Download the Driver Package
Open the official SigmaKey Drivers and Addons page.
Find the driver category matching your hardware.
Download the appropriate package.
Save the file in an easy-to-find folder.
Extract the archive if it is compressed.
Step 2: Install the Drivers
Open the extracted driver folder.
Find the setup or installation file.
Right-click it and select Run as administrator.
Follow the installation instructions.
Wait for the installation to finish.
Some driver packages use a manual installation process rather than a setup wizard. Follow the instructions included with the specific package.
Step 3: Connect Your SigmaKey Dongle or Box
Connect your SigmaKey dongle or SigmaBox directly to a USB port on the computer.
For stable operation, the developer recommends using a motherboard USB port instead of a USB hub.
Step 4: Check Device Manager
To confirm that Windows recognizes your hardware:
Right-click the Windows Start button.
Open Device Manager.
Look under Smart card readers, Universal Serial Bus controllers, or the relevant device category.
Check whether the connected device appears without a warning symbol.
The exact category can vary depending on the hardware and driver package.
Step 5: Open SigmaKey Software
Start SigmaKey or Sigma Plus after installing the drivers. If you are setting up a new Box or dongle, follow the official activation and update procedure described below.
How to Update or Activate a SigmaKey Dongle
Installing drivers alone does not complete the setup of a new SigmaKey Box or dongle. The developer's first-steps instructions also require a first card or Box firmware update.
Install the SigmaKey software.
Install the card-reader drivers.
Connect the Box or dongle directly to the PC.
Run SigmaKey software.
Open the Sigma tab.
Select Update S-Card firmware.
Follow the instructions and wait for the update to finish.
The developer explains that the first firmware update activates the Box or dongle. Do not disconnect it while the update is running.
How to Install SigmaKey Drivers Manually
If Windows does not install the driver automatically, you may be able to select the driver folder manually.
Connect the SigmaKey Box or dongle.
Open Device Manager.
Find the device with a warning symbol.
Right-click it and select Update driver.
Choose Browse my computer for drivers.
Select the correct official driver folder.
Continue with the installation.
Restart Windows if necessary.
For the Sigma Plus dongle, the official FAQ identifies this driver folder in a typical installation:
C:\Program Files\GsmServer\SigmaKey\drivers\AU9540DrvPkg V1.7.26.0_WHQL\
It also provides separate x32 and x64 subfolders for manual driver selection. The actual installation path may differ depending on where you installed the software.
Common SigmaKey USB Driver Problems and Solutions
1. SigmaKey Dongle Not Detected
If SigmaKey cannot detect the dongle:
Reconnect it to another USB port.
Install the official dongle drivers again.
Avoid USB hubs.
Restart the computer.
Check whether other smart-card software is interfering.
The official FAQ identifies incorrect drivers and software interference as possible causes of dongle detection problems.
2. S-Card Not Found Error
This message may appear when the smart-card reader is not recognized or another program is blocking access.
Try reinstalling the official drivers and connecting the dongle to a different USB port. If the problem continues, test the hardware on another computer. The developer notes that a damaged smart card may require replacement.
3. Driver Installation Failed
If the driver installer fails:
Confirm that you downloaded the correct package.
Extract the archive before running the installer.
Run the installer as administrator.
Restart Windows and try again.
Check the driver folder for a manual installation option.
4. SigmaKey Shows an Alcor Micro Driver Error
The official FAQ recommends reinstalling the Sigma-provided driver package and connecting the Box or dongle directly to a motherboard USB port.
For manual installation, it identifies the following folders:
program_files\AlcorMicro\x32program_files\AlcorMicro\x64
Choose the folder appropriate for your Windows installation and follow the official instructions.
5. Phone Not Detected by SigmaKey
A working dongle driver does not automatically mean that the phone driver is installed.
Check the phone's chipset and model, then download the matching phone USB driver from the official SigmaKey driver page. For supported devices, the correct connection mode and cable may also be required.
Tips for Successful SigmaKey Driver Installation
Download drivers only from the official SigmaKey website.
Identify whether you need a dongle, Box, phone, or COM port driver.
Use a direct USB connection for the SigmaKey hardware.
Avoid installing multiple conflicting driver packages.
Restart Windows after major driver changes.
Keep SigmaKey software updated.
Do not interrupt firmware updates or activation procedures.
Frequently Asked Questions
1. Where can I download SigmaKey USB drivers?
You can download official drivers from the SigmaKey Drivers and Addons page.
2. Are SigmaKey dongle drivers and phone USB drivers the same?
No. Dongle drivers allow Windows to recognize SigmaKey hardware, while phone USB drivers support communication with particular mobile devices.
3. Does SigmaKey support Windows 10 and Windows 11?
Yes. The official Sigma Plus software page lists both Windows 10 and Windows 11 as supported operating systems.
4. Why does SigmaKey show S-Card Not Found?
Possible causes include incorrect drivers, USB connection problems, interfering software, or a damaged smart card. Follow the official troubleshooting steps before assuming the hardware is faulty.
5. Do I need to activate a new SigmaKey dongle?
Yes. The official first-steps guide instructs users to complete the first S-Card firmware update. The Box or dongle is activated after this update.
6. Can I install SigmaKey drivers without the software?
The official driver page provides separate driver packages. However, installing the SigmaKey software can also provide access to the required driver files in its installation folder.
Conclusion
Correct USB driver installation helps SigmaKey communicate with its Box, dongle, and supported mobile devices. Download the appropriate package from the official website, install it carefully, and verify detection through Windows Device Manager. If you are using a new Box or dongle, complete the first firmware update before starting your servicing work.