Yeah a power issue with the LED. Fluctuating 1.5v to .5 for IC5.
YAY Yup fixed the blinking led, now I'm getting 3.3V for IC5
Thanks again Robert!
Edit
First 2 drivers worked (USB to serial and multiprotocol interface driver)...
Did you resolve the issue? I have same issues. Reflowed the smds. Bought some cheap CH341A from eBay. Tried different cables. Gonna reflow everything. Not sure what it is. Also my LED power blinks when powered. So maybe I have multiple issues.
Was your CH341A fried?