This indicates insufficient voltage or a corrupted hex file.
Since “Willar Programmer” is not a widely known mainstream tool (it may be a niche, legacy, or industry-specific application), I’ve developed a based on what a high-quality programmer’s tool should offer for Windows 10.
Willar Programmer handles various communication standards:
What or specific performance issues, if any, are you currently encountering? Which microcontroller or chip type are you trying to flash? Share public link
When a software package is marketed as having extra quality, it usually refers to several specific enhancements over standard or "lite" versions. For Willar Programmer, these include:
To get the best performance and reliability from your Willar programmer on Windows 10:
If there is a yellow warning triangle, download and install the latest CP210x VCP Drivers from Silicon Labs. 2. Software Installation