Remote Key fob

[Max9650]

Hey, I have used the seach function and google but no luck

Since ive bought my R53 Cooper S 2 weeks ago, the 1 remote keyfob that came with the car hasn't worked, he said it needed a new battery,

So I replaced the battery and inserted key, ignition on, off, held unlock + pushed lock 3 times, for the pairing process, but no luck at all.

Any Ideas whats the problem? Is there any way to test if the key itself has broken? ( water damage) etc?

[Max9650]

Any ideas would be greatly appreciated Thanks

[mab01uk]

Some links here which may help:
how can you Program a key - Forums