What are the hazards of using pure flow cards?

Can't reply to text messages, send text messages or make phone calls; Internet access only, no orientation, no speed limit, but there are restrictions.

In addition to not receiving short messages, sending short messages and making phone calls, a pure mobile card will also lock the device, which means that the card slot of 1 cannot be changed when it is put in the mobile phone; Because of the violation, there is a risk of being stuck in half, but it will generally be refunded and replaced; Generally speaking, the network speed depends on the local area, which will be a little slower than the normal traffic card, which is the level of 720p for ordinary video viewing.

Forbidden areas: Xinjiang, Tibet, Fujian, Guangxi, Yunnan, Maoming, Qingyuan and Chaozhou are temporarily not supported; There is 40% imaginary quantity.

What is a flow card?

Flow card, also called mobile data card, is also an Internet of Things card. It is a SIM card that provides wireless Internet access for mobile phones, computers and other portable devices.

Running water card is also called IOT card. IOT card is a mobile communication access service provided by the three major operators for IOT users, providing basic communication services such as wireless data, voice and short messages for IOT terminals, and providing operational services such as communication connection management and terminal management for IOT customers.

To put it simply, operators sell traffic cheaply to large companies, which form a traffic pool and sell cards, and users recharge through the WeChat public platform corresponding to each company.