Asprogrammer+21013 [exclusive] May 2026

Have you encountered the 21013 error with a different chip or a different programmer? The solutions above apply universally to any SPI programmer using the CH341A chipset. Keep your drivers clean, your wires short, and your pull-ups strong. Did this guide help you fix your CH341A? Share your experience in hardware forums under the tag #asprogrammer21013 to help the next user in trouble.

Enter —a community-developed, open-source alternative designed specifically for the CH341A. If you have spent any time searching for solutions to get your CH341A working perfectly, you have inevitably encountered the string: "asprogrammer+21013" . asprogrammer+21013

Introduction In the world of low-cost hardware hacking, BIOS recovery, and EEPROM flashing, few tools have achieved the cult status of the CH341A series programmers. For less than the price of a pizza, these tiny black or blue USB dongles allow you to read, write, and erase BIOS chips, flash memory, and EEPROMs. However, the default software that ships with these programmers is often clunky, outdated, and unstable. Have you encountered the 21013 error with a