"Why won't my GPS hold a charge?"に関する回答Test the connection of the power cord first, make sure that it is properly secured to the device. If the problem persists than the battery should be replaced.
"What do I do about the distorted noise made by speakers?"に関する回答It sounds like maybe the internal speaker might be broken. Probably should consider replacing it.
"Why is my GPS touchscreen not responding when I type?"に関する回答Make sure that the drivers for the device are properly updated. If the problem persists after this, consider replacing the touch screen with a new one.