If I'm done writing data, what happens to writing data on a device that writes data together?

I'm using SKT.

I'm also using an iPad to write data together with a smartphone.

I understand that if you use up all your data, you can use 2G a day.

What is the sharing on the iPad that writes data together?

Can we still write data in 2G together?

I can't use the Internet on my iPad, but I don't know if it's because of the plan policy or the device problem.

921 2017-04-25 Gentleman

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