1) Place an order on www.protuningfreaks.com for your bootmod3 software license. You'll receive an activation email with your VIN number and your software activation key (i.e. serial number).
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FIRST flash is important. It does the OBD UNLOCK and takes just under 4 minutes to complete. It will unlock and flash the map you're choosing to flash and it can be any map you've selected from the OTS Maps screen or even your Stock Tune. Once the flash is complete, turn ignition off 20 seconds and then start the engine. At this point you're all set and can proceed to a test drive #happytimes 
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STEP BY STEP INSTRUCTIONS ON OBD UNLOCK & FLASH
https://f87.bimmerpost.com/forums/showthread.php?p=22897208
https://f80.bimmerpost.com/forums/showthread.php?t=1474470