Download a standalone Allwinner USB Driver pack from a trusted Android development repository.
Right-click the .inf file and select "Install". Follow any prompts from the dialog boxes.
You must be logged into Windows as an administrator.
For a 32-bit Windows 7 system, you must ensure you use the 32-bit (x86) version of these files. Using 64-bit (x64) drivers on a 32-bit operating system will cause the installation to fail with an architecture mismatch error. Step-by-Step Installation Guide usb devicevid1f3apidefe8 windows 7 32 bit install
✔ Identify device – likely CH340 USB-to-Serial ✔ Download CH341SER.EXE for Windows 7 32-bit ✔ Ensure Windows 7 SP1 and SHA-2 updates are installed ✔ Run installer as Administrator ✔ Connect device and verify in Ports (COM & LPT) ✔ Adjust COM port settings as needed ✔ Test with terminal software
Troubleshooting and Installing USB Device VID_1f3a & PID_efe8 on Windows 7 (32-bit)
Look for "Unknown Device" or "USB Device(VID_1f3a_PID_efe8)" under "Other Devices." Download a standalone Allwinner USB Driver pack from
If the official site is blocked or slow, you can use:
Click the main drop-down menu in the center of the Zadig window and locate your target device. Look for entries named , FEL , or Allwinner Device .
Download a verified archive of the Allwinner USB driver or download the PhoenixSuit/LiveSuit application package. Create a new folder on your Desktop named Allwinner_Driver. You must be logged into Windows as an administrator
– Some clones use a programmable PID. If after installing, the Hardware ID changes to VID_1A86 PID_7523 , then it is absolutely a CH340 device, and you are on the right track.
While holding that button, plug the USB cable into a on your Windows 7 computer.
Which (PhoenixSuit, LiveSuit, or PhoenixCard) do you plan to use?
Windows will now show a list of drivers from that .inf file. Select the one that matches your device and click "Next". You may see a warning about the driver being unsigned. Click "Install this driver software anyway".