I have a BQ252504 DC-DC convertor. I mounted the 16 QFN to a Schmart board.
I am no longer able to identify pin 1. during the the soldering process the pin 1 identifier has been removed from the top of the part.
I used a water soluble flux that may have removed the marking. Question is there a way to identify any pin or pins with an ohm meter?
thanks
John kg9dk