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I want to check if my device SIM is unlocked

I want to check if my device SIM is unlocked（iPhone）

You can check if your device is unlocked or not by operating the device.

For details, see below.

How to check if my device SIM is unlocked

After registering for SIM unlock and inserting a SIM card from another company, you can check if the SIM lock has been unlocked following the steps below.

Steps to verify SIM unlocking

Proceed in the order of "Settings" [設定] > "General" [一般] > "About" [情報] , and if "No SIM locked" [SIMロックなし] is displayed in the "SIM Lock" [SIMロック] field, the SIM lock has been successfully unlocked.

This applies only for iOS 14.4 or later. For previous versions, it is not possible to check with the steps above, so please update your iOS first
Simply completing the SIM lock removal procedure will not change the status from "SIM locked" [SIMロックあり] to "No SIM locked" [SIMロックなし]. You need to insert another company's SIM card and perform activation to display "No SIM locked" [SIMロックなし]

I want to check if my device SIM is unlocked（Android）

You can check if your device is unlocked or not by operating the device.

For details, see below.

How to check if my device SIM is unlocked

After registering for SIM unlock → Insert a SIM card from another company and do the "Usage Settings" [ご利用設定], you can check if the SIM card has been unlocked following the steps below.

Steps to verify SIM unlocking

Proceed in the order of "Settings" [設定] > "About phone" [端末情報] > "Status information" [SIMカードの情報] and check the status.

Status information

Allowed [許可]: SIM unlock completed

Not allowed [未許可]: SIM unlock not completed

For your Reference

For details on "Usage Settings" [ご利用設定], please refer to the following

For au, click
here
(in Japanese only)

For UQ mobile, click
here
(in Japanese only)

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