7604075
DME MSD85.0
5WK93834

BMW F02 750i

I was able to read it only by supplying power to the ECU from an external power source. I had to turn off and on the power every time before each reading. What could be the problem? (software or programmer)

Error
(Cannot communicate with Ecu. Check wiring! -Ref:9c4-)

I will write a little later, then I will supplement the post.

the file recording had to be done also, through the supply of external power directly to the ecu. Received error 1F2802 after recording and fixed it later. Start the car and drive away.

Not much dissatisfied... Killed a lot of time solving problems with reading and writing. I decided to write maybe someone will help in the future or fix the development.

Your tool has an issue in switching power ON/OFF to the Ecu.
It's better to contact support, they will check your tool and identify the problem.