1. How can I get a SIM card? 

To get a SIM card from a major telecommunication services provider on the Chinese mainland, you need to visit one of the provider's physical stores. You will need to present valid identification, such as your passport. It is recommended that you contact the physical store before your visit to confirm with store staffers the materials you need to bring with you. 

2. What are the major telecommunication services providers?

There are four major telecommunication service providers on the Chinese mainland, namely China Mobile, China Telecom, China Unicom, and China Broadnet. 

3. How can I find a physical store of a telecommunication services provider?

Each provider has many physical stores scattered across Shenzhen. You can easily find one using a map app. For example, To locate a China Mobile physical store nearby, simply search "中国移动" on your preferred map app.