Ok, so i have got some more information on this hope it can help others. According to BMW ISTA when the vehicle is opened with a mechanical key (ie picked) it will not allow a dealer key to be simply synchronised by holding next to the steering column as it thinks it is being stolen. I have 2 F20's so I can believe this is true. I went to the dealer and spoke to a few technicians and if a retail customer was in this situation they would actually replace the FEM and upon initial installation and coding it will allow the new key to sync.
So in short new FEM is required according to BMW and in fairness I have tried everything diagnostically.
So I am going to try dmp's suggestion of adding a key using VVDI and my new dealer key for ISN, I will report my findings tomorrow.
@Hugh91 when I picked the drivers door only that opened, the others were deadlocked. But I can still remove the FEM, not too difficult tbh.
I'm surprised nobody else has come across this scenario....watch this space
Use ISTA to unlock deadlock,and then try new key.........
Guided fault finding = Feature that many factory scan-tools have and real technician despise it.
100% the dealer is bullshitting you.
Like I said, I had a M135 with the same issue.
I went through the same process as you, thinking something was wrong with the FEM.
Is the immo coil powering up on the column when you press the start button?
From memory, I could communicate with the FEM though.
There is another thought, remove the FEM and try and learn the key on the bench with the immo coil and start button connected.
Use Tool32 writing argument KL15_EIN. In most cases it give you terminal 15 back. Also try VVDI or something there is little option 'emergency switch on'
I would personally unlock FEM and try write this or another one in.
And how all this case finished?
This finished by me buying new fem to keep customer happy as he needed car and was happy to pay.
He will drop me the car back when he is on holiday for me to do some experiment, which I will report.
had also issues with FEM F20.... but not try to make new key... try to reset FEM Kilometer...
the method is the same...
FEM seems like dead... not seen by ista icom, e sys eent and so on... like dead...
but as @qwojtus wrote... problem is wake up / KL15...
I was not able to handle it and was at the point to buy new FEM for customer...
a guy from mhh helped me... tool32/edibas/e-sys with teamviewer...
my job was only to press buttons in car "electrical consumer", that can bus waked up...
but he handle it... It depends which keys (Keyless entry) the car have and MHZ, have to write virgin on 95128...
and after FEM is back in Life... write back ori 95128...
I worked with DP4, and it seems the problem is the software from FEM, when customer maked a software upgrade by BMW...
and tool has not newest software...
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