I would like to know how to change from a 4G LTE contract to a 5G contract
You can switch to a 5G contract after change to an eSIM or replace your SIM card.
Please check the details below.
Important note
- A fee of 3,850 yen (tax included) will be charged for the procedure to change from a 4G LTE to a 5G contract.
Change to eSIM
Procedures via My au (Web) and iPhone
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When changing from a SIM card to an eSIM, you can switch to a 5G contract using My au and iPhone.
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For details and procedures, refer to "Upgrading your model/Reissuing an eSIM if you are currently using au" [auをご利用中で、機種の変更・eSIMの再発行] on the page below.
Continue using SIM card
In case of procedures at the shop
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Your SIM card will be replaced.
- Click here to search for a shop
In the case of procedures by calling the Customer Center
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SIM card will not be replaced.
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It may take some time for the process to be completed at the customer center. If you are in a hurry, we recommend visiting the shop.
- If you are using iPhone 7 or iPhone SE (1st generation) or earlier, you need to replace your SIM card at the au Style/au shop.
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