Original post by: Geelong MicroSoldering ,
If the shields are not removed from the device, its a bit like washing your car with your eyes closed. The shields require an experienced board level tech to remove. If that step is skipped, the chances of it having further issues are very high. On top of this, alcohol doesn't dissolve organic matter, it tends to just move it around if you are lucky. There's a link on my profile to finding a board level tech. I definitely wouldn't be selling the device as fully functional without at least having the shields removed and the board cleaned properly in an ultrasonic cleaner with appropriate solution.