: The software failed to write data. This happens if the chip was not successfully erased first, or if the physical connection is weak. Adjust your SOP8 clip or check for cold solder joints on your adapter board. The Chip Detects as "Unknown (00 00 00)"
Never download executable files from random “driver websites” or pop-up ads. Many fake downloads contain malware. asprogrammer 21013 2021 download
Direct download of the specific 2021 build (v2.1.0.13) is not available from the original author’s primary page (which now hosts newer versions). However, archived copies are accessible: : The software failed to write data
: Streamlined backend support to prioritize the highly popular CH341A and USBASP architectures. Supported Chip Architectures asprogrammer 21013 2021 download