When the mobile phone is turned off, is out of service, has no signal, no network, or the UIM card is locked, it is not possible to recharge and check the Shenzhen Pass balance and transaction details through the UTK menu of the mobile phone, but the card can be used normally for consumption. "E-Surfing Shenzhen Tong (non-4G version)" is a mobile payment service jointly launched by Shenzhen Telecom, Shenzhen Shenzhen Tong Co., Ltd. and Shenzhen Lianxiangrui Company. "E-Surfing Shenzhen Tong" can be used to take buses, subways, etc., and can also be used to make purchases using mobile phones in convenience stores, community supermarkets and other small consumption shops with the "Shenzhen Tong" logo in the Shenzhen area. Applicable to Shenzhen Tianyi non-4G mobile phone users, and does not currently support iPhone mobile phone end users. This can be done through designated business offices. The broadband service can be self-service troubleshooting, which is simple and easy to operate. In addition, it can handle work order inquiries, ITV troubleshooting, broadband applications and password services, which is convenient and fast. For more functions, please pay attention to China Telecom Guizhou customer service. Customer service will answer your questions 30 days a day.