Unlike Qualcomm or MediaTek chips, the A133 has a peculiar (usb_gadget) active even before Android fully boots. During early boot stages, the chip exposes a raw diagnostic interface via VID_1f3a_PID_1330. This mode bypasses Android’s normal USB restrictions — including FRP’s lock on host-based interactions.
button while connected to the PC until the software detects the port. USB Drivers : Ensure you have the Allwinner USB Drivers Allwinner A133 Frp