INPA still the best DIY tool?

[GERMANIKS]

Originally Posted by blue dragon

I would not roll the dice doing this with a DCAN cable, or without a power supply. Thats just asking for a bricked module. ICOM only

ICOM makes no difference here.
ICOM would be mandatory for MULF/COMBOX/CCC/CIC etc, but EGS/DDE/DME, a good quality cable with FTDI Chip will do just fine.

I have been using the One Stop Electronics OBD plug for years for flashing small modules, never let me down.
Car Diagnostic :: By Product Type :: INPA & Ediabas :: BMW INPA / Ediabas K+DCAN USB Interface - one-stop-electronics.com

A chinese ICOM clone is about 500 bucks, plus power supply etc. This does not make sense to invest if this is to flash your very own once only.
Better go to the dealer or BMW Specialist. Should be around 200-300 bucks to get the job done.