A smart device board shown various issues and stopped to power on. I have opened it to determine the cause of the problem and I have seen it has multiple corrosion signs.
The board wasn't exposed to water or humidity by myself, and it is an item produced around a year ago, I'm surprised to see it in such conditions, probably these damages have been caused by some problem in the production or distribution chain.
In what way I could recover it from corrosion damages?
Best Answer
Circuit boards can often be cleaned with Isopropyl Alcohol (also referred to as Isopropanol or IPA, easily purchasable from most online vendors or a local pharmacy in the first aid section). I use a tooth brush for gently scrubbing corrosion off of PCB surfaces and allowing the board to dry completely before trying to power it on again. That said, the damage looks fairly severe and it's unclear whether cleaning alone will recover the board's normal functions.
Example: https://www.amazon.com/Swan-M314-Isopropyl-Alcohol-99/dp/B00NMPLSZ6/ref=sr_1_12?keywords=Isopropanol&qid=1573709322&sr=8-12