Here is ktag bdm read
I need some help to understand the files ,
.FLS is flash file (1mb) ,i saw some people have 2mb read ,is there any difference?In this file are located tuning maps ?
.EPR is eeprom file ,there are located vin number ,numbers specific to car chasis etc...?
and third one is blank extension file ,not sure when this one is used?
Can i use .FLS file from another bmw 320d and flash it to this ecu,will the car work?
When i write is it enough to write only FLS or i should write all 3 files?
Thanks in advance

No you cant use from another one.
flash also contains vin... in some ecus, your saying about epr, flash... isnt totally right.

for remap use .fls = . flash, there a the maps! But you cant use from another once because of ISN for EWS...