Unlock a KDDI mobile device.
A Step-by-Step Guide to Unlocking Your KDDI Mobile Device. KDDI mobile phones, tablets, or modems are locked by default and can only work on the KDDI network, so unlocking is necessary. For example, once your device has been unlocked, you can use any SIM card or eSIM from Japan, including NTT Docomo, Softbank, Rakuten, or
Unlock a KDDI mobile device. Read More »
