Use 90% isopropyl alcohol and a toothbrush to clean the chip legs.
The default "CH341A Programmer" software that comes with many clones is often buggy. Try these more robust alternatives: Highly recommended for stability. NeoProgrammer: Excellent for auto-detecting chips. Use 90% isopropyl alcohol and a toothbrush to
I can give you specific settings or wiring diagrams once I know the hardware! Use 90% isopropyl alcohol and a toothbrush to