Sunxi-tools Windows ★ Proven

sunxi-fel.exe dump 0x20000000 0x10000000 nand_backup.bin

(Dumps 256MB of NAND starting at address 0x20000000.)

Some older or partial builds of sunxi-tools exist for native Windows. These typically include sunxi-fel.exe and sunxi-nand-image-builder.exe. However, they are: sunxi-tools windows

Where to find them: Look in community SDKs (like those from Orange Pi) or older forum posts. But I don't recommend this for critical work. sunxi-fel

Use usbipd-win (Windows USB passthrough for WSL): (Dumps 256MB of NAND starting at address 0x20000000

usbipd wsl list
usbipd wsl attach --busid <BUSID>

Then inside WSL2, sudo sunxi-fel version will work.