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Discussion Starter #1 (Edited)
I have a 2008 335xi 6MT, and I just downloaded and tried to flash the N54 stage 1 tune. I followed all instructions to the letter, including the charger and airplane mode. The application hung up at 43% / 15 minutes for about an hour. Finally, I aborted the operation and tried again. At that point, I got the message "Waiting to complete previous task." After a while, I force stopped the application. Now neither MHD nor any other scanner can connect to the DME. The car is of course a crank no start at this point.

Anybody know what to do next?
 

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Discussion Starter #2
I installed WinKFP, and I'm trying to figure out how to reflash with this thing. In Komfort mode, I entered the VIN. I then pressed F3 to try programming, and I get Error 209: UIF cannot be read. Anyone know what that means?
 

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Discussion Starter #4
MHD support repeatedly assured me that I had bad hardware. Finally I identified it - my phone was dying. I bought a new phone and immediately flashed the tune with no problems. Wow this car is fast now!
 
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