Windows Verified — Sunxitools

As of May 2026, the only authoritative sources are:

Do NOT download from:

sunxi-fel.exe read 0x2000 0x800000 backup.fex

This backs up the first 8MB of NAND (bootloader + partition table).

Unverified tools may phone home with your device serial numbers or system info. Verified releases are either open-source or vetted by trusted forums like XDA-Developers or Linux-sunxi.org.

⚠️ Important: Always compare the hash after download. Only use copies distributed via the official GitHub release or trusted mirrors listed in the documentation.

Warning: Irreversible.

sunxi-fel.exe erase 0x0 0x80000000

SunxiTools Windows Verified is a repackaging of open-source and freeware tools originally developed by the linux-sunxi community, Allwinner Technology, and various open-source contributors. No proprietary code is added. The “Verified” label applies only to integrity and safety, not to official endorsement by Allwinner.

Sunxi-Tools for Windows: The Complete Verified Guide If you’ve ever ventured into the world of Allwinner-based single-board computers (SBCs) or tablets—think Orange Pi, Banana Pi, or Pine64—you’ve likely crossed paths with sunxi-tools. This essential suite of open-source utilities allows you to interact with the "sunxi" family of processors at a low level, most notably via FEL mode.

While natively built for Linux, getting a verified, working version of sunxi-tools on Windows is a top priority for developers who prefer a PC environment for flashing and debugging. Here is everything you need to know to get it running safely and effectively. What is Sunxi-Tools?

Sunxi-tools is a collection of command-line utilities designed for ARM devices powered by Allwinner SoCs. The most critical tools in the suite include:

sunxi-fel: The "Swiss Army knife" for Allwinner devices. It allows you to interact with devices in FEL mode (a low-level bootloader mode) via USB to read/write memory, load bootloaders, or flash SPI flash.

fex2bin / bin2fex: Compiles or decompiles FEX files (configuration files used by older Allwinner kernels) into binary format. sunxi-bootinfo: Extracts information from boot headers. Is there an Official Windows Version?

Technically, sunxi-tools is maintained as source code on GitHub. There is no "official" .exe installer provided by the primary maintainers. To get a verified version on Windows, you generally have three trusted paths: 1. The Zadig & MSYS2 Method (Recommended) sunxitools windows verified

The most reliable way to run sunxi-fel on Windows is to compile it using MSYS2. This ensures you are using the latest code directly from the master branch. Step 1: Install MSYS2. Download it from the official site.

Step 2: Install dependencies. Open the MSYS2 terminal and run:pacman -S make gcc pkg-config libusb-devel

Step 3: Clone and Build.git clone https://github.comcd sunxi-tools && make

Step 4: The Driver (Crucial). Windows won't recognize your device in FEL mode by default. You must use Zadig to replace the default driver with the WinUSB driver for the "Unknown Device" (USB ID 1f3a:efe8) when your board is plugged in and in FEL mode. 2. Pre-Compiled Binaries (Community Verified)

Some trusted community members (like those on the Armbian or Orange Pi forums) provide pre-compiled .exe versions of sunxi-fel.

Verification Tip: Always check the MD5/SHA256 checksums if provided. If you download a random .zip from a forum, run it through VirusTotal first. Look for builds that include the libusb-1.0.dll bundled in the folder. 3. Windows Subsystem for Linux (WSL2)

If you are on Windows 10 or 11, you can run the native Linux version. As of May 2026, the only authoritative sources are:

The Catch: You must use a tool like usbipd-win to "attach" the USB device from Windows to the WSL2 kernel. Once attached, you can simply sudo apt install sunxi-tools inside your Ubuntu WSL terminal. How to Verify Your Connection

Once you have your binary and your driver is set via Zadig, test the connection by opening a Command Prompt and typing: sunxi-fel.exe version Use code with caution.

If everything is verified and connected, the tool should return the chip ID of your device (e.g., AWUSBFEL nnnn:nnnn silicon ID ...). Common Troubleshooting

"libusb0.dll not found": This usually means you haven't installed the drivers via Zadig or the DLL is missing from your path. Ensure you select WinUSB in Zadig.

Device not found: Ensure your board is actually in FEL mode. This often requires holding a specific "U-Boot" button while plugging in the USB cable or shorting a specific pin to ground.

Permission Denied: On Windows, try running your terminal as an Administrator. Final Verdict

Using sunxi-tools on Windows is perfectly safe and highly effective once the WinUSB driver is correctly assigned. For the most secure experience, compiling via MSYS2 is the gold standard, ensuring you have a verified binary free of third-party interference. XDA-Developers Forum Thread: "Allwinner FEL mode tools for