Fix: Re-open Zadig, ensure is selected, and reinstall the driver. If using WSL, ensure the usbipd attach command was executed successfully from an elevated PowerShell window. Device disconnects immediately during code execution
Extract the contents to a dedicated folder, for example: C:\sunxi-tools\ . Step 2: Install the LibUsb Driver (Crucial)
: Tools like sunxi-meminfo and sunxi-bootinfo allow users to dump DRAM settings and read bootloader parameters directly from the device. Implementing Sunxi-tools on Windows
Parses and displays information from Allwinner boot headers. Setting Up Sunxi-Tools on Windows
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Sunxi-tools are a collection of command-line utilities designed to work with Allwinner-based SBCs. These tools allow users to perform various tasks, such as:
The package includes several critical tools that perform different low-level tasks:
Allwinner chips (A10, A20, H3, H5, H6, etc.) feature a low-level boot ROM routine called . When a device is powered on without a bootable SD card or NAND, it enters FEL mode and waits for instructions via USB.
In WSL2 Ubuntu:
Cause: The driver was not correctly assigned via Zadig, or another Windows process has locked the USB port.
Allwinner SoCs feature a low-level, hardcoded bootloader known as . If a device cannot find valid boot code on its storage media (MicroSD, eMMC, or NAND), it automatically drops into FEL mode. You can also manually trigger this mode by holding a specific physical button (often the "U-Boot" or "Recovery" button) during power-up.
WSL (specifically WSL2) gives you a real Linux kernel and environment. Since sunxi-tools communicates over USB, you'll need to install a few extra packages.
sunxi-fel.exe dump 0x20000000 0x10000000 nand_backup.bin Fix: Re-open Zadig, ensure is selected, and reinstall
is a collection of command-line utilities created by the Linux-Sunxi community. It is the Swiss Army Knife for managing Allwinner devices. It allows you to communicate with the device in FEL mode —a low-level recovery mode that allows you to flash the onboard storage (NAND/eMMC) or boot the device over USB.
Before you open a command prompt, you need to prepare your Windows environment.
If you want the absolute latest features or need to compile the tools from the official source repository, MSYS2 provides a clean environment. Download and install . Open the MSYS2 MinGW 64-bit terminal.