This hardware ID identifies an Allwinner Technology device in FEL (flashing) mode. It typically appears when a tablet, media player, or development board (like a Pine64 or Orange Pi) is connected to a PC for firmware recovery or unbricking. ⚙️ What the ID Means
Unknown Device in Device Manager: How to Identify and Fix | Dell US usb vid 1f3a&pid efe8&rev 02 3 driver
The revision number, REV_023, offers a subtle but important nuance. Different Oculus hardware revisions have, at times, presented slightly different USB power negotiation or isochronous transfer requirements. Users on community forums have reported that while an older sensor (REV 01 or 02) might work on a USB 2.0 port with a passive extender, a REV 02 3 (likely a late-production Rift CV1 sensor) often requires a USB 3.0 port with a dedicated controller, or it will fail to enumerate properly. If the driver fails to load, the solution is rarely a new driver file. Instead, it involves troubleshooting the USB host controller: disabling USB selective suspend, updating motherboard chipset drivers (especially for ASMedia or AMD USB 3.0 controllers), or using a powered PCIe USB expansion card. This hardware ID identifies an Allwinner Technology device
Drivers for this specific hardware ID are typically included with manufacturer-specific flashing utilities. If your computer does not recognize the device, you may need one of the following: FEL Mode Drivers - Exdroid Tablet - GitHub Different Oculus hardware revisions have
: It most commonly appears when an Allwinner-based device is plugged into a PC via USB while in its specialized "flashing" or "boot" mode. Alternate Identifications : Some databases also associate this ID with VIA Technologies