How to identify whether Samsung 20 16 is a national bank?

You can tell whether the mobile phone is licensed by the following ways:

1. The "licensed" mobile phone has a network access license with a blue grid on a white background issued by the Ministry of Information Industry, and the letters and numbers at the bottom are the numbers registered by the license management center. If the license is illuminated by purple light, a red CMII watermark will appear in the lower right corner of the license, where C stands for China and MII stands for the Ministry of Information Industry. A vertical color line is displayed in the middle or right side of the license, with the upper part in red and the lower part in blue.

2. Some mobile phones have CIB quotient detection marks on the back. Under the irradiation of purple light, the background color changes from white to blue, and the red letter S appears below the letter I. ..

3. Identification of the customer service center authorized by the manufacturer.

4. If it is a GSM mobile phone, you can also enter *#06# on the mobile phone to check the serial number of the mobile phone.