Select or similar from the list and install it. Troubleshooting: Driver Issues in Windows 10/11

If you have connected a device to your Windows PC and found a device in Device Manager labeled with a yellow exclamation mark, you are likely dealing with an Allwinner Technology device, commonly a tablet, smartphone, or TV box in a specific state. The REV_0203 (or similar REV_0200 ) indicates a specific revision of the device, typically when it is in FEL mode (bootloader mode) or when it requires a Virtual COM Port (VCOM) driver to be flashed.

Once completed, the device should appear under "Allwinner Device" or similar in Device Manager. Troubleshooting: Driver Signature Issues (Windows 10/11)

The hardware ID USB\VID_1F3A&PID_EFE8&REV_0203 (often appearing in Device Manager as "USB Device(VID_1f3a_PID_efe8)") most commonly identifies an Allwinner Technology

Many legacy Allwinner flashing drivers do not possess updated cryptographic digital signatures recognized by modern Windows kernels. If you attempt an install on Windows 10 or Windows 11 without bypassing this security policy, the OS will reject the installation.

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.