1. Looking for a spare key: Try using the spare key to open the car door. If the spare key is nearby, this is the quickest and least likely way to damage the vehicle.
2. Use professional tools: If you don't have a spare key, consider using a professional door unlocking tool, such as a slimming device or a pressure bag. These tools require certain skills and experience to operate, and may require hiring professional car unlocking service personnel to perform.
3. Contact the car manufacturer or professional rescue: If none of the above methods are feasible, contact the car manufacturer's customer service department or a professional roadside rescue service, who may provide remote unlocking services or dispatch professional personnel to the site for unlocking.