Didn't want this to get lost on the huge tuner thread, so I'll post here. I purchased a SE Pro Street Tuner, installed software on my laptop, watched all the tutorials, connected to my 2012 Fatboy Lo, laptop connected to ECM, started Smart Tune process and got the error message "reflash aborted". Tried many things to rule out bad ports, bad software download, low battery charge, etc. Same error. Then, bike would turn over but wouldn't start. Hauled to my dealer. Standard tune or flash was gone. I wiped it out somehow. They flashed stock tune into bike. Then found rear O2 sensor disconnected and front O2 sensor bad. I never fooled with the O2 sensors before..! I know, weird, right? Anyway, after O2 sensor issues were corrected, no more problems. Tuner works perfectly! I can tune my bike myself. I wanted others to know what I experienced, before they had to pull their hair out.
I'm no techno geek, so pardon me if I used the wrong terminology. I hope this helps someone.