Can I use my current 4G LTE au SIM card in a 5G-compatible SIM-free smartphone?
No, you cannot use it as it is a 4G LTE contract. It is necessary to go through the procedure for changing to a 5G contract. Please note that whether or not you need to replace your SIM card differs depending on where you process it. Please check the details below.
- There will be a fee of 3,500 yen (including tax 3,850 yen) to change from a 4G LTE contract to a 5G contract.
If you want to change to eSIM
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Procedure from My au in the iPhone
If you want to change from a SIM card to an eSIM, you can do it through My au in your iPhone.
If you want to continue using a SIM card
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In case of procedures at the store
Your SIM card will be replaced.
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In the case of procedures by calling the customer center.
We do not replace the SIM card.
- It may take some time for the process to be completed at the customer center. If you are in a hurry, we recommend that you visit the store.
- 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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