In addition to what oldturkey03 has said, perhaps try cleaning out the port with an air duster. Sometimes when the port is dirty it can affect the connection between connection device and the port itself. Always make sure to connect the device USB cord in the intended way (not crooked, upside down).

Make sure the charging adapter is connected to a live power source. Also, make sure the charging port on the laptop is free of dust or debris. Use an air duster to remove anything obstructing a proper connection. If these solutions do not succeed, you may have to replace your charging adapter, or the battery itself. Refer to the Battery Replacement Guide on the device page to see the steps.

Make sure nothing is in the way of the hinge when you're trying to open or close the laptop. If theres still stiffness or difficulty opening or closing, try using an electronic lubricant to lessen the stiffness. If the problem persists, you may consider replacing the hinges. Sometimes the hinges may not be broken, but they are just worn from general wear and tear use over time. Try using the Hinge Replacement Guide found on the device page.