Phoenix USB Pro v3.1.0 (stable for Allwinner A-series chips) and v4.0.0 (for Intel Cherry Trail).
Once drivers are installed, follow this 4PDA-approved workflow: phoenix usb pro 4pda
Compared to more generic CH341A programmers (which cost under $10) or high-end TL866 units, the Phoenix USB Pro 4PDA occupies a sweet spot. Its advantages include: Phoenix USB Pro v3
Works with chipsets like A10, A13, A20, A31, A64, A80, and H3. not USB 3.0
Use a USB 2.0 port , not USB 3.0, and a high-quality short USB cable. Many flashing errors are cable-related.