: Ensure you are using the proper CH341PAR (parallel/I2C/SPI mode) driver rather than the serial (CH341SER) driver.
If you can tell me you are trying to program (e.g., 25Q64, 24C02) and which programmer board (black or yellow) you're using, I can give you more specific advice on the voltage and pinout to check. Share public link asprogrammer 21013 hot
Some advanced users attempt to replace a chip while the programmer is powered — “hot” as in “hot insertion.” This can destroy the chip, the programmer, or the USB port. ASProgrammer does not officially support hot-plugging SPI/I2C chips. : Ensure you are using the proper CH341PAR
If you incorrectly connect a 3.3V chip to a 5V adapter without level shifting, excessive current flows. The programmer gets within seconds. asprogrammer 21013 hot