SCM Microsystems SCR331 Driver Download
The SCR331 is a USB device manufactured by SCM Microsystems. This driver can help resolve issues like USB device not recognized, "Disk Not Formatted" errors, or if your device randomly ejects or stops working. This version of "SCRx31CCID_fw5.18.zip" has been downloaded 584 times with a user rating of 5 out of 5 stars, based on 8 reviews. It has been installed successfully by our users on PCs running Windows XP. The total disk space used for this update is 269.4 KB.
Supported Models
SCR331
STCII DFU Adapter
Manufacturers
Supported Operating Systems
Windows 2003, Windows XP, Windows NT4, Windows ME, Windows 98SE, Windows 98
File Name
SCRx31CCID_fw5.18.zip (269.4 KB)
Versions
5.181.04.00.01 (2004-10-21) via .inf
Additional Notes
Secure Card Readers
This firmware is only for SCR331 USB readers manufactured and distributed by SCM Microsystems.Downloading this firmware to other readers could result in reader becoming non-functional.
Note: If you are using the smart card reader in a corporate environment, check with your site administrator if the software being used shall be compatible after the reader has been upgraded.
If you are using an OEM version of reader that was manufactured by SCM Microsystems, please contact the OEM for firmware updates.
Uploaded By
sundar (DG Staff Member) on 29-Apr-2005
Related Driver Updates
How to Update SCR331 Device Drivers
Step 1 - Download Your Driver
To get the SCR331 driver, click the green download button above. After you complete your download, move on to Step 2.
If the driver listed is not the right version or operating system, search our driver archive for the correct version. Enter SCM Microsystems SCR331 into the search box above and then submit. In the results, choose the best match for your PC and operating system.
Tech Tip: If you are having trouble deciding which is the right driver, try the SCM Microsystems Driver Update Utility. It is a software utility which automatically finds and downloads the right driver.
To find the newest driver, you may need to visit the SCM Microsystems website. Most major device manufacturers update their drivers regularly.
Step 2 - Install Your Driver
After downloading the new driver, proceed with installation. On Windows, use the built-in Device Manager utility to manage your system's devices and drivers. To access it:
Right-click the Start button
Select "Device Manager" from the menu
Locate the device needing the update
Right-click the device and choose "Update driver"
Follow the on-screen prompts to install
Once complete, restart your computer to ensure the new driver is fully implemented and functioning properly.
This process helps maintain your system's performance and compatibility with various hardware components.
Tech Tip: Driver downloads and updates come in a variety of file formats with different file extensions. For example, you may have downloaded an EXE, INF, ZIP, or SYS file. Each file type has a slighty different installation procedure to follow.
For more help, visit our Driver Support Page for step-by-step videos on how to install drivers for every file type.
Driver Contents File List
The following files are found inside the driver download file.
| Name | Size | Date |
|---|---|---|
| FIOSx33x.dll | 143.4 KB | 24 Jun 2004 |
| FwResorc.dll | 102.4 KB | 24 Jun 2004 |
| FwUpdate.exe | 241.7 KB | 24 Jun 2004 |
| FwUpdate.ini | 499 bytes | 14 Apr 2005 |
| SCR531_V518.bin | 32.8 KB | 24 Aug 2004 |
| stc2dfu.cat | 7.8 KB | 3 Nov 2004 |
| STC2DFU.INF | 1.4 KB | 25 Oct 2004 |
| STC2DFU.sys | 7.8 KB | 25 Oct 2004 |
| Sx33XRES.dll | 41.0 KB | 24 Jun 2004 |