Drivers Omnikey Card Reader

Original title: omnikey 3121. I cannot find a driver to support the Omnikey 3121 card reader for windows 10. Any ideas please. OMNIKEY card readers are extremly reliable and particular customer-friendly card readers, like all HID Fargo card printers.HID Globals Omnikey series is designed to support any kind of smart card for any application on any computer system. Free Shipping Hid Omnikey 3121 - Smart Card Reader - Usb 2.0. I need to set Driver attribute on a HID GLOAL OMNIKEY 5025CL smart card reader. I do not have the the Vendors SDK. Their documentation states. Reader Mode (8Dh) The tag readerCurrentMode 8Dh is primitive and defines reader operating mode.

Summary :

If Windows 10 doesn’t recognize the SD card reader, it might be the SD card reader driver issue. This post provides a Windows 10 SD card reader driver download and install guide to make your computer detect the SD card reader. To recover data from SD card, manage or format SD card, MiniTool software offers easy free tools.

Sometimes you may meet the error that the SD card reader is not detected by your computer and the SD card is not showing up in Windows 10. One solution to fix this issue is to download and reinstall the SD card reader driver. Below is a detailed Windows 10 SD card reader driver download guide.

HID Omnikey 3121 USB Card Reader works on Windows, Mac, and Linux. However, depending on the level of your operating systems, you many need to install a driver. To use your CAC with your computer, you’ll still need to download the appropriate drivers (in some cases) as. HID OMNIKEY Android driver is and application which provides access to smart cards via JSR 268 API.

Windows 10 SD Card Reader Driver Download Guide

Way 1. Download SD card reader driver for Windows 10 in Device Manager

  • Press Windows + R, type devmgmt.msc, press Enter to open Device Manager in Windows 10.
  • In Device Manager window, you can expand Universal Serial Bus controllers category.
  • Next right-click on the SD card reader driver and select Uninstall device. Confirm to uninstall the driver.
  • Then you can restart your computer, and it will automatically download the SD card reader driver on your Windows 10 computer. You can also click Action tab in Device Manager and click Scan for hardware changes to reinstall the SD card reader driver.

Way 2. Realtek SD card reader driver download from official site

You can also go to Realteck Downloads center to select and download PCIE card driver software or USB device driver for your Windows 10 computer.

Troubleshoot Hardware and Devices Problems in Windows 10

If the SD card reader can’t work on Windows 10, you can also run Windows Troubleshooter to check if it can fix the problem.

  • Press Windows + I to open Windows Settings.
  • Click Update & Security and click Troubleshoot in the left column.
  • Find Hardware and Devices in the right window, and click Run the troubleshooter button. Windows will automatically and find problems with devices and hardware on Windows 10.

Best SD Card Data Recovery Software

If your SD card or memory card is corrupt and some data are lost, you have an easy way to retrieve the lost files, photos, videos.

MiniTool Power Data Recovery is a professional data recovery software for Windows. You can use this tool to easily recover any deleted/lost files from PC, SD card, USB drive, HDD, SSD, and more. It tackles various data loss situations. You can just use and SD card reader to connect the SD card to your computer, and choose the SD card to scan, preview and save needed files after the scan.

If you use a Mac, a top Mac data recovery software can help you recover deleted/lost files with ease.

How to Reformat the SD Card for Free

If the SD card has problems and you want to format the SD card after data recovery, you can use MiniTool Partition Wizard to easily format it for free.

You can connect the SD card to your computer, and launch MiniTool Partition Wizard. Right-click the SD card and choose Format option. Select FAT32 as the file system and format the SD card to FAT32.

  • 1Installing the driver for the reader
    • 1.2Types of readers
      • 1.2.1OmniKey
      • 1.2.2ACS

Installing the driver for the reader

All readers, offered by InfoNotary EAD have drivers for Linux, which can be downloaded from the website of the manufacturer's - OmniKey or ACS. In some cases, these drivers can be installed directly through the packaging system of your distribution.

Installation of PC / SC

Regardless of the model of your reader, you will need to install the package 'pcscd'. This is the daemon through which programs work with the reader and smart card respectively. After installation of the new driver for the reader must restart pcscd. If you install drivers from the package, it will probably restart daemon.

In some distributions, together with the installation of pcscd installed and alternate demon Management readers - 'openct'. For correct operation of the reader will have to deinstalrate or if it can not be done without removing and pcscd, forbid him to run.

Types of readers


To use smart card readers on OmniKey Linux, you will need to install the official driver OmniKey instead of libccid that is included in most distributions.

If you use Debian, Ubuntu or Mint you can install it directly from our apt repository. Package name is pcsc-omnikey. After this package is installed you can proceed directly to installation of smart card driver.

If you use different distribution or prefer to install driver manually, you can now download it from their site or from Reader drivers. Before you install the driver must have installed 'pcscd and you uninstalled or disabled 'openct.

At the output of the command lsusb these readers appear in the following ways:

Each reader with ID starting with 076b work with the same driver.

Drivers Omnikey Card Reader
Driver installation

HID Global did not provide standard installation packages for Linux, so to install the driver must take the following steps:

  1. Unzip the downloaded tar.gz package in your home folder. This is the folder with your user name.
  2. Open a terminal and change the working folder to that obtained decompressing. 64 bit version is the command cd ~/ifdokccid_linux_x86_64-v4.1.5, and for 32 bit is cd ~/ifdokccid_linux_i686-v4.1.5. In case you unzip it to another folder, you can type in the terminal 'cd', to grab the folder from the file manager and to drag and drop on the terminal. This will give you the correct command.
  3. Run the command sudo ./install to install or su -c ./install if you dont use sudo.
  4. Restart the daemon with the command sudo service pcscd restart.
Setting up pcscd to run the system

If you are using Ubuntu 11.04, 11.10 or 04.12 will need to set pcscd to run with the system. If you use another distribution or version of Ubuntu skip to the next section - remove libccid. In these versions of Ubuntu daemon is configured to run as a normal user, but the driver of HID Global can not work that way. This is done by changing the init script pcscd (/etc/init.d/pcscd). You can open this file with the command sudo gedit /etc/init.d/pcscd. You can find this section:

and put # at the beginning of the line „exit 0“:

After this change, you must stop all running instances of pcscd and drop it from the boot script. In Ubuntu this is achieved by the consistent release of the following commands sudo killall pcscd and sudo service pcscd start.

Remove libccid

Hid Omnikey Card Reader Driver

In some distributions free reader driver libccid is installed with pcscd. It does not work correctly with these readers, so if you don't use a reader that works only through libccid, uninstall it. In order not to remove the demon when uninstalling libccid, you can install any other package providing pcsc-ifd-handler - for example libacr38u. The exact command for Ubuntu is sudo apt-get install libacr38u && sudo apt-get remove libccid.

If in the distribution you use, you can not remove libccid, without removing pcscd, you will need to remove or disable the driver manually. This is the situation with some versions of Red Hat, Fedora and their derivate distributions.

More destructive option is to simply delete the driver from the pcscd folder. In Fedora it is /usr/lib/pcsc/drivers/ifd-ccid.bundle or /usr/lib64/pcsc/drivers/ifd-ccid.bundle in x86_64 version. With the following command you can move it to the home folder - H=$HOME; sudo mv /usr/lib/pcsc/drivers/ifd-ccid.bundle $H.In case you want to use another reader that works only through libccid, you can not uninstall it. Instead you need to remove the description of the OmniKey readers from libccid configuration file - /usr/lib/pcsc/drivers/ifd-ccid.bundle/Contents/Info.plist. The easiest way to do this is to replace every occurrence of the string 0x076B with 0xFFFF. If you disable libccid this way, note that the changes in its configuration file will be lost after update.

Testing Installation

To check which one driver using pcscd, you need to run in debug mode with parameters-fd. For example, on Ubuntu this can be done this way - sudo /usr/sbin/pcscd -f. In the output of this command should have something like this:

HID HID Global OMNIKEY CCID IA32 v3.7.0 [email protected]

If this sign is not show than the driver of Omnikey is not loaded. Most likely reason for this is that you have installed some of the following libccid or openct. In most cases when you delete this packages the problem is fixed.


ACR38U and some versions of ACR38T are not CCID compatible, for them you have to install the drivers from here or in folder Drivers/Linux/ACS on the CD. They are also include in Debian and Ubuntu, and the name of the package is libacr38u.

The result of the command lsusb this readers are shown this way:


If you reader is labeled ACR38C-SPC-R on the bottom side, or it has a sign SIMLector 38T on the outside of the reader or sign mLector-S then he is CCID compatible and it is supported by libccid. Most likely the package containing this driver is called libccid or just ccid. Altought through libccid, this readers can work, they can work also with drivers supported from their manifactorer - libacsccid1. It is a free software. In case you use both Omnikey and ACS it is best to use libacsccid1 instead libccid.

For this readers lsusb the result is:

Hid Omnikey Card Reader Software

Installing smart card drivers

According to what is the model of your card, you have to use different software. If the model of the card is „T&S DS/2048 (L)“, you have to install bit4id-ipki from folder Install/Linux on CD or from our repository. If the model is „CardOS V4.3B (C)“, you will have to install OpenSC.

To check smart card model you can use pcsc_scan. This program shows what reader and cards are plugged. In Debian and Ubuntu it is contained in package pcsc-tools. If it shows Siemens CardOS V4.3B, you must use OpenSC. If it says Universita' Degli Studi di Torino (Infocert), you must use bit4id-ipki.

OpenSC 0.16 and later versions expect reader driver to provide information for hardware capabilities contrary to the PC / SC standard. If you are using OpenSC with OmniKey reader you must set maximum message size manually in configuration file. In section reader_driver pcsc you must uncomment max_send_size and max_recv_size and set bot variables to at least 300 bytes:

More information is available in OpenSC issue and relevant part of PC/SC specification.

Installation check

If you have problem using your certificate, you can run the following program to identify it: Questtech USB devices Driver download.

It can send information directly to us. After report is accepted, it will show nine digit number, that can be used by our support team to see test result. If you do not have Internet connection or direct sending failed, you can save report and send it to [email protected]

Reader and card should be connected to the computer when test program is started.

This program uses one of following packages to show its user interface - python-tk for Debian/Ubuntu, tkinter for Fedora/RedHat or zenity. If you do not have any of them installed, it will still work, but only from terminal.

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