What do the great gods mean by texting to open 4G service? Is there a charge? Have you changed the set meal?

There is no extra charge for activating 4G. As long as your mobile phone terminal supports Unicom 4G, you can use 4G, and the tariff is charged according to the tariff standard of your package. You can also use Unicom 4G without changing the package. It is also recommended that you contact the local manual customer service to check whether your package has changed. Under normal circumstances, you won't change the package for no reason.