1. Check the bumper surface for serious dirt or defects. If so, you can wash the car or clean the bumper surface with detergent first, and then remove the film.

2. Find the edge of the film and gently pull the film with your finger or scraper.

3. If the film is difficult to tear off, you can use a hot air gun or a hair dryer to heat the film to loosen the film adhesive, and then gently tear off the film.

4. After tearing off the adhesive film, check whether there is glue and other residues on the bumper surface. If there is, you can use gasoline or degreasing agent to clean the residue, and be careful not to let the cleaning agent enter the bumper.

5. Finally, clean the bumper surface with clear water to ensure that the surface is clean and dust-free, and then apply maintenance products or car wax to improve the durability and aesthetics of the bumper.