Information on switching to 5G
5G switching flow
We will guide customers who are currently subscribed to 5G switching.
To use 5G, it is necessary to confirm "5G contract / 5G compatible terminal / 5G communication area".
Check your current plan
① Please check whether your current plan is "J:COM MOBILE A Plan (Voice + Data)" on My Page or the J:COM MOBILE app.
Check from My Page
Check from app
②If your current plan is not "A Plan ST", please change the plan below.
Check 5G communication service area
You can check if your area is a 5G communication service area from the au site below.
(to au site)
Check if your device supports 5G
In order to use 5G communication, it is necessary to have a 5G compatible terminal.
Please choose either.
- Those with a SIM-only contract
- Those who have a contract with a terminal and SIM together
- Please check if your smartphone supports 5G on each manufacturer's website.
- You can switch to 5G from the web.
Log in with J:COM Personal ID → Select "Smartphone" from the service menu → Click the 5G service application button to complete the procedure.
FAQ
We introduce frequently asked questions from customers.
If you have any questions, please contact us by phone or chat.
- What is 5G?
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For details, please check here.
- Will there be any fees when changing to 5G service?
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No fees will be charged for changing to 5G service.
- Can I still use the SIM?
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Yes, if you are a J:COM MOBILE subscriber and change your service to 5G, you can use the same SIM Card to use the 5G service.
Limited to J:COM MOBILE A plan (voice + data) subscribers.
5G communication requires a 5G terminal.
- What should I do if I want to change to 5G service?
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You can switch to 5G from My Page.
Log in with J:COM Personal ID → Select "Smartphone" from the service menu → Click the 5G service application button to complete the procedure. - How soon will I be able to use the 5G service after applying?
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If you apply online, the switch will be performed sequentially from 9:00 a.m. two days after your application.
