: Navigate inside the subfolder structure to Drivers/CH341A . Right-click SETUP.EXE and choose Run as Administrator . Click the Install button to initialize the CH341PAR interface driver configuration.
This indicates a physical connection issue. The pins on your test clip may not be making clean contact with the chip. Clean the chip leads with isopropyl alcohol, adjust the clip, or verify the wiring layout. Verification Errors neo programmer 21019 full download