I bought a new cellphone in China, it can be used in the network of TDD-LTE：2600（B38）/1900/2400/2600（B41）; FDD-LTE：1800/2100/2600; TD-SCDMA：1900/2010；WCDMA ：900/2100; GSM 900/1800/1900, but i can not use my Public Mobile SIM card, I don't know my SIM...
