: On your tablet, go to Settings > About Tablet and tap Build Number seven times. Then, in Developer Options , toggle USB Debugging to ON.
Which are you trying to use (PhoenixSuit, ADB, Android Studio, sunxi-tools)? Is the device currently booting normally or bricked ? allwinner a133 usb driver
If your primary goal is to flash stock firmware, unbrick your tablet, or use official Allwinner tools, you need the official Allwinner USB Driver. This bundle includes the vital , which allows the computer to interact with the chip in FEL mode. 2. The Google USB Driver (with Allwinner Hardware ID) : On your tablet, go to Settings >