Ok Dragonlady On the remote theres a button that says function or will have an F on it. At the same time press the F or Function button and the Mute at the same time. Now remember once its unlocked you may need to reprogram by going into the menu. If you have any more problems call Apex at 866-427-3946, they are very good with helping their customers. Hope this helps. Good Luck
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Thank you so much, I can't believe it was so easy, but I would have never thought to have pushed those two buttons at the same time, Thank you so much!!!!
hello, I was pushing the mute and what I think is the function key because it has popped out of my remote, is this the top left hand button on the remote model number k12b-c2 if so is there another solution.
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