The most reliable way to interface with this device on Windows 7 is by using the utility or dedicated Allwinner flashing tools like LiveSuit or PhoenixSuit . Using Zadig : Download and run Zadig . Select Options > List All Devices . Find the device with 1F3A / EFE8 in the dropdown.
Verify that the destination directory contains these core components: usbdrv.inf (Setup Information) usbdrv.sys (System Driver) aw_usb.cat (Security Catalog) Step 2: Access Device Manager Click the and right-click Computer . usb device-vid-1f3a-pid-efe8- windows 7 32 bit