Problem with Chrome Ring Install

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I purchased the chrome gauge rings on Ebay and because others said that if I take the instrument cluster apart, it will void the warranty, I thought why not put it on my 740il and see what happens.

Everything went pretty smooth, the rings were a little large, so I took a hair dryer, heated up the plastic so that it would expand, and the rings went in nicely without having to shave any plastic off.

But after putting everything back, my instrument cluster has no lights and none of the displays in the instrument cluster works.
By that I mean none of the pixels light up, no odometer, no computer display, no service or idiot lights. The gauges work, NAV works, all other interior lights work. Checked the fuses, all are fine.

Any idea of what happened? The only thing I can think of is that I had a hard time putting the black harness back on the instrument cluster and that might be the problem. I might have a bad connection there. Other than that, I am at a loss. Any ideas?

I am sure that the X5 has the same instrument cluster and posted this same question over on couple of other Bimmer boards. But I usually don't get much responses from posts there.

Thanks.