if it read your stock map and saved it, then it is married.
You'd have to choose the option to erase it and remove all info on it to un-marry it. Just be sure it didn't like remove your stock map and your stuck with a bricked DME.
2007 BMW 335i Sparkling Graphite Sedan 6AT
BMS DCI ~ ActiveAutowerke ChargePipe/BOV ~ BMS Cabin Filters with Cowl Delete~ JB4 G5 40% E85 60% E93