problem with serial lcd from YwRobot, LCM1602 IIC

Don,
I know you said this is an old thread but I got my YwRobot I2C LCD working.with some help from Liu Shuan at
DFROBOT. Do you want me to do anything with the information or just drop the subject ?
Your call. I am trying to offer a solution to the above posts on the "old thread'.
Based on the above posts isn't this relevant ?
You 'suggested' I open a new thread. What should I call it ? (YwRobot: "No Problem found ?"
If you say no I'll remove this post.