Maybe this good help you guys, i have notice that when i open the crashbar to switch on the battery, no power, then you buy a new battery and after that it will power up the TBM 900....
Can any body tell me how to down grade to 11.30 so that the TBM 900 CAN WORK PROPERLY.....PLEASE..... i am a Mac user......feels like a kid got a bike and is only allowed to ride it on weekends.....