2007 E90 Key issue

Hi all!

Bought my car a few weeks ago and yesterday I finally received my spare key from the dealers.

The sales man told me the spare key was never used, the guy had kept the key in a safe all the time. So when I received the key it even looks brand new. Really happy about that.

So then I tooked the key and tried to unlock the car, nothing happened. Ok, so I unlock it with my old key. Then I tried to to start the car with the new spare key, nothing happened, it does not even lock the key into position...

Could it be a faulty key? Battery? Any suggestions on what it could be and how to sort it out?

Thanks!


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