ECUHELP KT200II User Feedback:
BMW F30 28i N20 2.0T
MEVD17.2.4 (I think its same as 17.2.9.)
R/W in Bench Mode: OK
(read 4m30s,write 30s)
Write in OBD Mode: ok
(but it cost 21min, so i not recommended)
VR Failed
power supply by battery(12.6V)
The read file is exactly the same as PCM.

Please look at the following images of using KT200II to r/w MEVD17.2.4 on bench:
KT200II RW BMW F30 28i N20 2.0T MEVD17.2.4 on Bench-01 KT200II RW BMW F30 28i N20 2.0T MEVD17.2.4 on Bench-02 KT200II RW BMW F30 28i N20 2.0T MEVD17.2.4 on Bench-03 KT200II RW BMW F30 28i N20 2.0T MEVD17.2.4 on Bench-04 KT200II RW BMW F30 28i N20 2.0T MEVD17.2.4 on Bench-05