My wife's RazR M quit working with the new smart charger cord for "Bedside" dock option. We tried my cord, still doesn't work. My RazR M bedside option is still working fine (knock on wood) When it quit, it locked up the entire phone. I had to hold the power button and volume button at the same time to get it to power off. I then was able to reboot the phone. We have NOT tried a factory reset, hoping to not do that. Any ideas?