Check your connection alignment. If you are using a SOIC8 test clip, clean the chip legs with isopropyl alcohol. The clip must sit flush, and pin 1 on the chip must match pin 1 on the programmer layout.
This version added enhanced support for various memory chips including F-RAMs, FRAMs, and specialized I2C components like AT24RF08, PCA24S08, and M34E04/AT34C04. 2. Built-in HEX Editor
If you have never used a CH341A programmer, you must install the driver. Go to the Drivers/CH341A directory within the extracted folder and run setup.exe . Run: Open NeoProgrammer.exe to launch the application. Best Practices for Using NeoProgrammer