The safest way to acquire the driver is to download the official deployment tool for your specific device. Downloading or LiveSuit will automatically extract a subdirectory named Drivers , USB_Driver , or sw_usb_driver onto your storage drive.

The most reliable way to obtain the correct, verified driver package is through official Allwinner flashing suites rather than sketchy third-party driver download portals. Topic: Error USBdevice(vid-1f3a-PID-efe8) @ AskWoody

If you only need to communicate with the device (not use it as a modem), you can force install the Microsoft generic WinUSB driver:

The driver for usb vid 1f3a&pid efe8&rev 02 3 is not mysterious—it is a standard ZTE mobile broadband driver. Instead, let Windows Update search for it, or manually install the generic ZTE USB Modem driver package from your cellular provider or the official ZTE support portal.

There are two primary methods to fix this, depending on whether you are using a pre-packaged tool or installing a driver manually. Method 1: Installing the Allwinner USB Driver (Recommended)

When you see this ID, it signals that your device has entered or a similar low-level boot state.

VID_1F3A&PID_EFE8 is not a random error code; it's the specific hardware identity of a device in its low-level recovery or "download" mode. It's a hardware ID combination consisting of: