DoCoMo's SIM release guide site
Conditions of automatic procedures
Conditions where the SIM lock is unlocked at the time of purchase
ドコモ回線にひも付けて購入した場合（今回の追加分）
( * 1) In the case of a collective claimed child line, it depends on how to pay the representative (payment) line
ドコモ回線にひも付けないで購入した場合（従来通り）
Release operation is required depending on the terminal
iPhone／iPad
( * 2) As a general rule, Wi-Fi (wireless LAN) is recommended.However, if the carrier of the inserted SIM card is compatible with the iPhone / iPad, it is not possible to activate ( * 3) MVNO SIM cards that use docomo lines ( * 3).Except for services issuing)
Androidスマホ／タブレット
- 端末にドコモ以外のキャリアが発行するSIMカードを挿入して電源を入れる
- 解除コードの入力画面が出たら、端末に解除コードを打ち込む
- SIMロックが解除される
