1, toothpaste: take off the phone case, wipe the surface with wet wipes, then squeeze on some toothpaste, apply the toothpaste evenly with a brush, and scrub the phone case with a small brush several times, generally scrub five minutes later with water to rinse it off, the method is simple and effective.
2, soapy water: If there is some dirt such as oil on the phone case, then it is necessary to use soapy water to clean the phone case, with a soft cloth or cotton pad dipped in soapy water, wash it off with water after several wiping, and then dry it with a dry cloth to turn white.
3, alcohol: you can use medical alcohol, you can also use alcohol-containing toilet water, wind oil essence, can play a decontamination and white effect, directly use a cotton pad dipped in alcohol or alcohol-containing liquid, wipe the phone case several times, and finally rinse with water and dry.