No clue. How can some of us drive ours 7 days a week, using the phone, navi, climate, and entertainment and never have any issues....with the same software build? I have a 2011 and haven't seen a reboot since 2.11. I've never pulled the fuse or battery cable. What else can it be but hardware? 3.5.1 is fast, voice works 100% better.
You are seriously very lucky and Im envious, I want mine to work like that too. But after getting a 2013 full load Limited through a 2011 Lemon Law replacement, mostly based on MFT issues, Im still having issues.
My 2013 was built August 18th 2012, so it had the version before v3.5.1, dealer did the install and it worked great for a bout a month.
Just the other day I received a call while driving, the MFT phone GIU showed my iphone connected. The call was ringing through the Ex speakers and nothing showing on the MFT GUI. So I could not use the steering wheel controls to answer the call.
So I tried to answer on the iphone but couldnt because it was going through MFT but no audio after the ring. WTF? So I lost the call.
Loosing the call is minor compared to the driver distraction going on while I try and figure out whats going on at HWY speed.
Secondly the Bluetooth audio will work 100% one day and never connect the next day.
Third, I sometimes get text messages through MFT, and sometimes I don't Its hit and miss. More of an Apple issue but still.
Sirius Travel Link sometimes spins forever, I tried the
"pop out the SD Nav card" and it fixed it for a day then back to spinning icons. I have a case started with Sirius Tech support and they have advised they are checking the issue.
Dont get me wrong, when it all works I love it, but stability or reliability are not words to describe MFT.
Maybe if I drove the vehicle once a week and my entire interaction with MFT was as simple as turning on the AM radio and turning up the volume, then I could say it works fine.