[T-P-C]

7Hello

Please can someone help me?
I did flash yesterday BMW X5 M my2009 555hp gasoline
Over obd socket.
After all done it will not start .
Does anyone had the same and can help me what could be root cause?

I have to tell that even when i load the battery i had only 11.5 Volts during writing...
And before writing i did ecu id ....
I am not sure if one of this couks be root cause . The mod File is ok .

So i decide to reload the original
After thus car was able to start and drive.

I woukd be happy if anyone has a Professional idea please.
Thank you all .

[masa52]

Read the errors first and list them

[betrescudan]

7Hello

Please can someone help me?
I did flash yesterday BMW X5 M my2009 555hp gasoline
Over obd socket.
After all done it will not start .
Does anyone had the same and can help me what could be root cause?

I have to tell that even when i load the battery i had only 11.5 Volts during writing...
And before writing i did ecu id ....
I am not sure if one of this couks be root cause . The mod File is ok .

So i decide to reload the original
After thus car was able to start and drive.

I woukd be happy if anyone has a Professional idea please.
Thank you all .

post original and mod file...
and more details about your ecu type

[donesko]

What tool did you use, did you make correct checksumm?

[telucu17]

Write mod file without checksum. It's a MSD ecu and they all do this, just let tool to corect chk and car will start