: Once the driver is installed, use a tool like sunxi-fel to verify the connection. In a command prompt or terminal, run sunxi-fel version . If it's successful, you'll see a message from the boot ROM on your device, confirming everything is working correctly.
Since this is a specialized driver, it is rarely included in standard Windows updates. You can typically find it within the installation folders of flashing software like or download it from dedicated driver databases. Manual Installation Steps
A common approach on developer forums involves the following method:
Have you plugged in a USB device only to see USB\VID_1F3A&PID_EFE8&REV_023 in Device Manager with a yellow exclamation mark? You’re not alone. This cryptic identifier frustrates many users, but the fix is usually simple. usb vid 1f3a&pid efe8&rev 02 3 driver
When this hardware string appears, the device is usually waiting for low-level firmware instructions, an operating system flash, or a partition repair via a utility tool like , PhoenixSuit , or standard Android Debug Bridge (ADB) tools. If the computer lacks the dedicated Allwinner driver package, Windows will list it as an "Unknown Device" or trigger a Code 10/Code 43 error in Device Manager. Step-by-Step Installation Guide
Right-click the "Unknown Device" or "USB Device" with the matching VID/PID. Update Driver Browse my computer for drivers
Because Foxlink produces these chips for custom contracts, they often do push generic drivers to Windows Update. The driver is unique to the final product's manufacturer. : Once the driver is installed, use a
This error often appears after a failed automatic driver installation. Windows may have assigned an incompatible driver (e.g., a generic Microsoft driver) in place of the Allwinner driver.
Because this driver is typically unassigned and self-contained (lacking an automatic Windows Update package), it must be installed manually. Method 1: The Recommended Manual Deployment
Tech Repair Lab | Reading time: 4 minutes Since this is a specialized driver, it is
Select > Advanced options > Startup Settings > Restart . Press 7 to disable driver signature enforcement.
Even with the correct driver, problems can arise. Here’s how to troubleshoot the most common issues:
Given the PID_EFE8 (Product ID) and the REV_02 (Revision 2), we can narrow the field significantly. This is not a disk drive. This combination almost exclusively points to a or a touchpad with an integrated fingerprint reader (FPR) .
You can use third-party tools such as DriverIdentifier to find the driver automatically. However, manual installation is generally safer and more reliable. Troubleshooting: Code 10 and Other Errors