Re: Prewired 16x2 blue display

_Dave_ AD0B
 

It seems the problem is mainly about soldering technique or general electrical repair.

One tip I have is to plug the female connector on to the male connector. Use quality solder and additional flux. along with a clean tip. 

Solder a pin near each end then move around so you don't heat them in kind. A bit like tightening lug nuts on a wheel. 
--
73
Dave
k0mbt
Raduino bracket and Ham_Made_Keys

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