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Offline Milkyway  
#1 Posted : 12 June 2018 08:58:23(UTC)
Milkyway


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Hello!

I unlock the FEM from my F30 330e (engine B38) and got the secret file.

Few weeks later I got a brand new key and I programmed it on key slot 9. Everything looked perfect, I was able to open and close the car with the new key and also with the old one. But the car won't start and ISTA+ said that the answer telegram DME/EWS is wrong. The old key can open the doors but with this key it's impossible to switch the ignition on - only with the new one.

I restored the FEM with the backup file without any success.

What is going wrong here? Thx for a prompt answer - I need my car. :)

CU Oliver
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Offline Autohex_II_BMW  
#2 Posted : 12 June 2018 23:19:54(UTC)
Autohex_II_BMW


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Hi,
Nothing to worry sir please contact support via skype (microtronik@outlook.com) we will solve this for you.This happened because the original key was not recognized on key coil while unlocking fem.so always make sure the original key is detected on key coil from key learning option 1 before unlocking FEM/BDC .

If you got any difficulty to reach support in our working hours i will explain you the steps to solve this
1.connect fem On bench
2.check original key is shown as YES in its slot from key learning option 1
3.don't disturb the key and unlock the fem again
4.save secret file
5.go to coding /programming ------>ISN manager--->option 4
5.load the secret file you got(the latest one for the fem ,make sure you don't select the older secret file you got before you can delete the older file from laptop)
6.click on write isn
7.car will start on original key after that
8.But unfortunately the new key you programmed will not work ,so you must either reset it and program again or need to use another blank key.

Edited by user 12 June 2018 23:27:33(UTC)  | Reason: Not specified

thanks 7 users thanked Autohex_II_BMW for this useful post.
Offline Milkyway  
#3 Posted : 13 June 2018 02:08:45(UTC)
Milkyway


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Hello!

Thx a lot. That was the solution. My key coil was broken. With a new one it worked as expected and as you wrote.

Thx again for your perfect support.

CU Oliver
thanks 4 users thanked Milkyway for this useful post.
Offline CharlotteSarah  
#4 Posted : 03 October 2019 08:24:23(UTC)
CharlotteSarah


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Thanks, you guys saved my money from hiring an auto locksmith.
thanks 1 user thanked CharlotteSarah for this useful post.
Offline AndrewNale  
#5 Posted : 06 December 2019 09:06:02(UTC)
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Key programming can be done at cheap if you hire a locksmith to program a key otherwise you can take help from the dealer but it's expensive.
Offline BridgerRufus  
#6 Posted : 07 February 2020 06:12:46(UTC)
BridgerRufus


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Replace the coil and your problem will get resolved, there is no need to hire any locksmith for that work.
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