In principle, no settings are required if you update iOS to the latest version.

If the pictogram shows "Y!mobile" with Wi-Fi turned off, the process is complete. Please proceed to the next step.
If communication settings cannot be made for some reason
Connect to Wi-Fi,Please update your iOS to the latest version.
You can update by going to Settings > General > Software Update.
If you have switched from another company and have installed an APN configuration profile from that company, please refer to the following to delete it. How to delete an APN configuration profile How to delete an APN configuration profile
We will configure SIM-free, SIM-unlocked iPhone, and SoftBank certified used iPhone sold by Y!mobile certified used items to communicate over Y!mobile network.
The setup method varies depending on iPhone model and version, so please follow the respective steps.





















