It’s all about BMW E series NBT coding using BMW ENET E-sys cable. Useful tips can be found here, such as NBT, NBT EVO, NBT HU pinout and connection description, and also NBT retrofit manual available.
NBT pinout
(NBT rear view with connections)
NBT connections description
NBT EVO pinout
(NBT EVO rear view with connections )
NBT EVO connections description
Note:
*When retrofitting E60, E70, E90 with NBT EVO, pin 14 (KL58G) of the Main Quadlock connector must be cut and leaved unconnected
NBT coding
(NBT coding connection schematic )
(BMW ENET cable from China)
(NBT EVO coding connection schematic)
NBT HU pinout
NBT HU pinout description
NBT HU pinout
NBT HU pinout description
Basic coding parameters for NBT HU
Reference: BMW E90 CCC & CIC to NBT retrofit/ coding.pdf
It’s very important for NBT retrofit DIYers. All you need can be found here, like tools selection, installation, coding issues- most details offered.