I've had my x910 for almost a year now and everythings been pretty good, until it started getting cold out and snowy. Now the HU won't do anything until the vehicle warms up (about 5 mins). It sits there all black with no lights until the car (chevy trailblazer) warms up then works fine. On warm days it works every morning without any problems just when its below 30 degrees it'll start having problems. I've googled and didn't see anyone else with this issue and I have no clue why it wouldn't work. any suggestions?

I've had similar issues with my unit. Even when it would boot up, it would consistently set my destination to take me home. I'd cancel the route and it would set again seconds later. It was very frustrating, then one day I decided to do a reset (press the reset button with a pen) and held it for about 30 seconds. It's been working good since.

Cheers.