Red rice 4x, after the mobile data is turned off, may I ask: 1, can I answer the phone and send and receive text messages? 2. Is it possible in a country without a 2G network (such as Japan)?

First question: After the data network is closed, you can send and receive SMS and make phone calls normally, because there is no need to transmit traffic data.

The second question, the premise is that your red rice 4X can receive the mobile signals of Japanese operators, and can receive and access them, so you can send and receive short messages and answer calls normally, but the tariff is relatively expensive.

Pure hand tour, hope to adopt.