A simple 10x10mm aluminum heatsink on the CH341A IC reduces temperatures by 10-15°C.
Ensure you have the official WCH drivers installed so Windows recognizes the hardware as an interface rather than a serial port. asprogrammer 21013 hot
It looks like you’re asking about (often written ASProgrammer ) — the open-source flash programmer software — specifically version 2.1.0.13 (or a build number like 21013), combined with the word “hot” . A simple 10x10mm aluminum heatsink on the CH341A