Make sure there are no spelling mistakes.
Please check a signal in a different place.
If you don't see any signal bar or "3G, "LTE", or "H" next to the bars, please check the network mode.
The phone cannot receive the signal in Japan when [GSM Only] mode is selected.
Please change it to [GSM/3G/LTE(Auto)], [LTE/WCDMA] and etc.
(Setting >More...>Mobile Networks>Network Mode)
Unfortunately, your device may not be compatible or may be locked.
If you wish to get a refund, please send the SIM card back with the Refund Request Slip within 2 days (including the start date).
(Settings > General >Reset >Reset Network Settings >Enter your 4-digit passcode >Reset Network Settings)
Unfortunately, your device may not be compatible or may be locked.
If you wish to get a refund, please send the SIM card back with the Refund Request Slip within 2 days (including the start date).