A friend gave me a used wireless Apple A1255 Bluetooth keyboard. However it is SEALED shut as in you can't open the battery compartment to change the batteries. Can't do it with a coin like normal....tried a few different size screwdrivers.....uh uh. Thinking maybe the batteries corroded inside I soaked that end in White vinegar to loosen any seal that might have been the result....no way.....tried WD40.....no. There is no outside corrosion evident. There must be a way short of drilling the dam thing open. Would taking it to an Apple store be worth it if it's close? Any ideas most welcome