Wireless Keyboard bank of keys stopped working

my apple wireless keyboard (small aluminium version) has stopped responding keys after cleaning. appears affect bank of keys on left side of keyboard.

affected keys include 2,w,e,a,s, , caps lock. of other keys i've checked working fine, , bluetooth functionality fine.

used clean damp cloth wiping clean, , mid way through cleaning added tiny amount of washing liquid. i'm guessing must have managed tiny amount of water behind 1 or more keys. unfortunately, stupidly did cleaning batteries in place. i'm not sure if electronic circuit damaged beyond repair or reset, or if it's gunk on contact.

i've tried drying out on past couple of days without improvement. i've tried pressing non-responding keys repeatedly too. looks though particular line or segment of keyboard electronics affected.

know if affected keys give clue source of problem. if there way recover problem? or have bite bullet , hand on more money apple.

thanks.

 

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