Android: Hold down the power button, or the power button and the volume down key (depending on your Android phone), until the ...

With the tech giant's idea, a smartphone would download a map of the wireless network signal strength for nearby regions, and it would then feed that info to the vehicle's navigation system.

Let's face it: Having little or no cell phone signal can be cause for panic ... For more, check out how you can use Google Maps when you're offline and how you can maybe fix your internet ...