1. Apply essential balm evenly on the rubber residue, wait for a few minutes, and then wipe it with a damp cloth.
2. Apply a little toothpaste to the rest of the tape, and then gently rub it. If it is too dry, add some water.
3. Cover it with a hot towel for a while, then dry it with some detergent, rub it twice, and then wipe it with a warm towel.
Smart phone refers to the type of mobile phone that, like personal computer, has an independent operating system and independent running space, and users can install programs provided by third-party service providers, such as software, games and navigation, and can realize wireless network access through mobile communication network. At present, the development trend of smart phones is to fully join a number of patented technologies such as artificial intelligence and 5G, making smart phones the most widely used patented products. The application software between mobile phones with different operating systems is incompatible with each other, while the mobile phone software of the same system is basically universal and quite convenient to use. Because third-party software can be installed, smart phones have rich extended functions.