Erase first if needed (for EEPROMs, not EPROMs).
Upon the first launch, the software may ask to "Reflash Firmware." If your hardware is a genuine TL866, allow this update to sync the hardware with the v6.70 software features. minipro+670+download+top
Finding official links for older software versions can be tricky as the manufacturer, , prioritizes their latest V12.x software for newer hardware. Official & Trusted Sources Erase first if needed (for EEPROMs, not EPROMs)
If the software fails to open or cannot detect the USB unit, right-click the execution shortcut, navigate to properties, and toggle "Run this program in compatibility mode for Windows 7" . Alternative: Linux & macOS Deployment Erase first if needed (for EEPROMs