Hello, I am Alex from Serbia. I am trying to locate the manufacturer of 600W digital step up module (like this one). Closest I could find is on your site here
I have few of them and the STM8 (STM8s103k3t6c, to be exact) MCU unit is not responding from the start. By replacing the control module (and the STM itself at the end), I figured out that it is the problem. I would like to reflash it, even have some spare chips, but cannot find appropriate firmware. I would be very grateful for your help. Thank you very much for your response.
Sincerely,
Alex.