How to turn on roaming overseas data on your iPhone

pu1. It's good to sign up for a data roaming plan, but it'll cost about 10,000 won a day.
If you seem to use a lot of data, you can use a local USIM, but the fare is very cheap if you use a local USIM. If it's an overseas trip, you won't have time to keep doing this and that on your phone like in Korea, so it's much more economical to buy a local USIM, so I strongly recommend it this way!

2017-12-26

OK