Why did my car GPS suddenly stop working?

You have committed one mistake to use the refurbished GPS gadget. It is not good to use any refurbished electronic communication gadget. Actually, your gadget is not working well to provide you the information which you are looking for. It seems that your GPS gadget has a problem with the power supply. So, it is better to repair it to solve your problem. The power-supply segment of your GPS gadget is not synchronizing well with your car battery. First, you have to look at that your device is working well or not after recharging through your car battery. If your GPS device is working well, then the problem lies on the AC outlet of your home. Just check it. Again, if you see that the AC outlet of your home is working well, then the transformer or SMPS circuit in the GPS gadget is not working well. So, you have to repair it through a skilled technician. Even after repairing your GPS gadget, still it is not working well then you have to go for buying a new GPS gadget for your car. Moreover, it is the best option for solving your problem by buying the new one. However, always remember to never try to buy a refurbished any electronic device for your uses.