waking it up from sleep the monitor did flicker

Hey folks!

It's almost 2022 and this monitor is till knocking around. I really is a nice display and design and would hate to throw it out. I tried Barkin Tunga's fix and tough it didn't solve the problem it did confirm that the monitor still has life in it.

Barkin Tunga's fix here: 24" LED Cinema Display flickers then dies (A1267)

Upon waking it up from sleep (connected to a 2013 MBP) the monitor did flicker and I could clearly see the desktop wallpaper on the display.

It seems to seems to me either something is loose, (cable?) or it could be a cold solder joint. Suggestions are welcome as to the real culprit.

Thanks folks!

~ EMJWAYLZ