hello
I have seen a 75 on the facebook group that has had a 3 button bmw key coded to the bcu, so the car unlocks etc,
so gave me an idea so I brought a replacement 3 button bmw flip key with electronics inside. it come with the code that I added using toaf, but the pop up box that says please synchronize key didn't pop up. no matter how many times I tried, The code of the new key in stored on the bcu but buttons don't work. am I hoping for something that is never gonna work.
https://www.amazon.co.uk/gp/product/...?ie=UTF8&psc=1
The other chips fits into place inside the key so that's not a problem.