Took my 12 Explorer in for the inspection. No problem found but they do reprogram when the fans operate. After the reprogramming, MFT was messed up. No caller ID on the Phone connection and no option to answer an incomming call. I had to use my phone instead of it going through the SYNC system. It got better a few days later all by itself but still was not always working right. I followed the service manager's suggestion and did a master reset before bringing it in for repair. The master reset fixed everything and MFT has been working better than ever since then. After the reset I did have to reconnect my phone but everything else was saved. Radio presets, temperature setting and everything else was not affected.