[budddyyy]

1)
 the oddometer from the 6wa is lower them in my car this is ok so it will correct himself,
i will set the vin with r270 to ff i have read the instruction to do that , but i dont will desolvered the chip, and now i have read that some instrument cluster must be desolvering and some not?
i will use a soip 8 clip but how i can see it is ok or i must desolvering? must look at the hw or what is the indiz for this ? 

Try without soldering (needs a retrofitted port on the R270 adapter board). If it doesn't work, you have to desolder the EEPROM.

2.) i will code the 6wa to everey time white light but i have read it can only do when the software on the cluster is old and new software dont can code for everytime white light ? 

how i can know it works or not ? which software can code and when is the software to new and bmw blocked that ? is there any nummer which data i must have ?  and then i can downgrade?

You read it right. If the software is old enough you can code this and it will work, but if the software is to new the coding has simply no effect. If you downgrade (should be Fxx-12-07-xx) you get mostly problems with the other (newer) ECUs.

ok thanks, so if if i rightly understand..... from Fxx10 to Fxx12-07 this software can coded for white led light at the odometer?

and my car is not updatet to new software , my ECUs hav the updtes F10 13-XX i dont know but its from year 2013.......

so i think it can be ok because its only one year... can test it