how to clean a clear phone case that turned yellow

There are a few ways to clean a clear phone case that has turned yellow:

Use a mixture of baking soda and water. Make a paste by mixing baking soda and water in a bowl, and then apply it to the phone case. Scrub the case gently with a soft-bristled brush or toothbrush, and then rinse it off with warm water.
Try using rubbing alcohol. Dampen a clean cloth with rubbing alcohol and wipe the phone case thoroughly. This should remove any discoloration and leave the case looking clear and clean.
Use hydrogen peroxide. Mix equal parts hydrogen peroxide and water in a bowl, and then soak the phone case in the mixture for a few hours. Rinse the case off with warm water and dry it with a clean cloth.

Remember to always check the manufacturer’s instructions for cleaning and care before trying any cleaning methods on your phone case.