How to fix moisture like diagonal stains old macbook models?
how do we fix those moisture like stains on stocked old units?
thank you
Earlier Mac models
Does the Mac run as expected?
If on the exterior, likely the best you can do is clean them with a very slightly water-moistened soft cloth. Too much rubbing and/or a stronger solvent will likely damage the surface.
If water got inside the Mac and it doesn't run now, chances are it's damaged and in need of repair. Which may not be possible depending on how old these "old units" are.