yup, that's the exact guide I followed. I guess the question I have is, when you press any 1 of the 3 buttons, does homelink LED light up?

I started by holding down 1 and 3 for well over 20 seconds, and nothing started blinking. I can fiddle with it more, I guess. I'm just wondering if there is an easy tell tale on whether it's busted or not.

Thanks.

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'12 X5 35i Platinum Grey - Niche Essen 20s