Hi. I have a 2001 X5 4.4i. I have three key fobs. One stopped working (electrically) so I replaced the battery. Now I think I need to sync them. My Bentley manual explains the procedure but it also says that from the factory the keys are numbered (1,2,3) and the keys must be all synchronized at the same time in that order (1,2,3). Is there some way around this? I’ve tried the process with a random order and now none of the keys will open the doors and only one willl open. If you know how this works please help! Thanks