Hello, was wondering if anyone else has ran into this problem.  I updated the firmware on my Z150BH from 1.03 to 1.06 and now my navigation has froze. I live in Missouri and the map is stuck showing somewhere in California. I've tried factory reset, disconnecting the car battery, checked the gps antenna, replaced the gps antenna.  In the info screens, it is showing (Antenna OK)  (NO GPS)  (yellow sat 0)  (red sat 0).  The head unit is reconizing speed pulses but not distance. I sent Pioneer an email about the issue and awaiting reply. The only thing I can think to do is downgrade the firmware back to 1.03 but I'm not sure how to do that. Any help or suggestions would be much accpreicated as I'm at a loss.  Thanks.

Update: Even though the gps antenna is in the dash and only 6 months old, it went bad somehow. Replaced it and nav works fine. However, the 1.06 update did kill the 2wire bypass and my appradio with my Galaxy S4 so heads up.