[Service Notice]

The 3G (FOMA) service will end on March 31, 2026. During this transition period, some iPhone users may experience temporary network connectivity issues when using TOP SIM.

From March 1 to March 31, 2026, iPhone Air and iPhone 16e may connect only to 3G and be unable to use 4G (LTE) data.

From April 1, 2026, iPhones running iOS 26 or later may require a restart to connect to the network, and connection may take 1–2 minutes. If the connection is slow or unavailable, turning Airplane Mode ON and OFF may help.

If issues continue, please contact our support team.