Before installing, go to Windows "Device Manager" > "Universal Serial Bus devices." If you see "CH341A," right-click and uninstall it (check "Delete driver software").
The combination of cheap hardware and powerful open-source software like NeoProgrammer is what keeps the DIY repair community alive. Version 2.1.0.19 is the peak of that curve. Don't upgrade to the buggy v2.2 releases, and don't downgrade to the stock trash. neoprogrammer 21 019 ch341a best