ZTE does not always offer direct consumer downloads, but their generic "ZTE USB Modem Driver" package (often version 2.0.0.8 or higher) supports the 1F3A vendor ID.
Even with the correct driver, problems can arise. Here’s how to troubleshoot the most common issues: usb vid 1f3a&pid efe8&rev 02 3 driver
Many legacy Allwinner flashing drivers lack a modern digital cryptographic signature verified by Microsoft. Windows will block installation unless enforcement is temporarily bypassed: ZTE does not always offer direct consumer downloads,
Modifying a clean android_winusb.inf file from the official Android Studio Developer Console to include these lines will allow your system to route data safely via the regular Google ADB Interface engine. Troubleshooting Common Connection Errors Topic: Error USBdevice(vid-1f3a-PID-efe8) @ AskWoody The most reliable package containing this driver is
The USB\VID_1F3A&PID_EFE8&REV_02 represents a ghost in the supply chain. It is a real, functional piece of biometric hardware manufactured by Foxlink, but it has been orphaned by the reseller who bundled it.
The most reliable package containing this driver is the USBDriver folder bundled inside official flashing utilities like PhoenixSuit or LiveSuit.
Once the computer restarts, try installing the driver again. Summary Table 1f3a (Allwinner Technology) PID efe8 (FEL/Flash Mode) Common Device Allwinner Tablet, TV Box, Smart Device Driver Type USB VCOM/FEL Driver Recommended Tool