Did I ruin my EBH?

It looks very easily salvageable to me. Just clean the corrosion off, let it dry well, and make sure there is no residue left on the plug face between the prongs.

It will probably work just fine as is, but that wouldn't stop me from cleaning it.

 

As Fuzzy1 said should be no problem at all just clean the pins.

 

Use isopropyl alcohol (aka rubbing alcohol) as a cleaning solvent.

 

I'd clean it first with some moistened baking soda and finish it off with a cloth and some light machine oil. Cleaning it with a light oil will help prevent further corrosion.

BTW Rxmxsh, every time I see your avatar it makes makes me so glad that animated ones are disabled on the new forums!

 

If the the alcohol and baking soda aren't enough, then I'd move up to some fine sandpaper, or anything with a mild abrasion.

 

Yep, steel wool is also really good if the milder solution don't work well enough. Still make sure you finish it off with a good rub of oil, or even vaseline, to prevent further corrosion.

 

Please try to post the pic directly here, it's really easy now. Just click on the Upload a file button at bottom, navigate to your image and select it, and you can choose to show it in the message. When I click on the linked image get nothing, likely due to my work computer having some policy, but...

 

After clean up try putting an ohm meter across the 2 main prongs: there should be around 30~40 ohms. If it's infinite you have a problem. And if the issue is with the plug they're relatively easy to replace: cut it back a bit and solder a similar plug on. Be sure to stagger the splice locations so they're not all at the same point along the wire, and wrap everything securily.

 

All else fails an old tooth brush and some gritty toothpaste will scrub that plug clean

Mike

Mobile on my SGH-i717