Because FEL mode runs before the OS, you can dump the entire memory or storage of a locked device (assuming no hardware crypto). The read command bypasses software locks.
While GUIs like PhoenixSuit are great for beginners, they often hide the logic of what is happening. SunxiTools (often running via a CLI wrapper or a minimal GUI) gives you granular control. You can write a specific U-Boot binary to a specific offset, or dump the contents of your SPI flash for backup—a feature often missing from consumer-grade flashing tools.
If you are a developer, a tinkerer, or an embedded Linux enthusiast working with Allwinner chips (like the A64, H3, H5, H6, or the newer D1), you know the pain of flashing and debugging. For years, the standard tool was PhoenixSuit or LiveSuit. While functional, these tools are notoriously bulky, often bloated with outdated drivers, and frustrating to run on modern versions of Windows. sunxitools windows portable
Enter SunxiTools Windows Portable.
This utility is rapidly becoming the go-to solution for the modern maker. In this post, we’ll explore what it is, why you should use it, and how to get started. Because FEL mode runs before the OS, you
You can typically find the Windows binaries on the official GitHub repository for the sunxi-tools project or via trusted community forums (like the Armbian or Orange Pi forums). Look for the latest release tagged for Windows.
Once downloaded, place the .exe file in a folder you can easily access (e.g., C:\sunxi-tools). SunxiTools (often running via a CLI wrapper or
Navigate to your folder containing sunxi-fel.exe. No installation needed – simply open a terminal there.