Troubleshooting

Cellular data not working? SOS only? Stuck on 'Activating'? Step-by-step fixes that actually work.

• Why is my cellular data not working after installing my Miyaw eSIM?Most 'no data' cases come down to one of three things: Data Roaming is off, the eSIM isn't selected as your data line, or it's still finishing activation. A travel eSIM connects by roaming onto local partner networks, so Data Roaming must be ON for the Miyaw line. Work through the checks below in order — the first two fix the large majority of cases.
• Why does my iPhone show 'SOS only' while traveling?'SOS only' means your iPhone can reach a network for emergency calls but isn't registered on one for your own data. With a Miyaw eSIM it almost always means the line isn't switched on, isn't selected for data, or has Data Roaming off. It's not a fault with the eSIM — work through the three checks below and service returns in a minute or two.
• What does 'PDP authentication failure' mean and how do I fix it?'PDP authentication failure' is a data-connection error: your phone reached the network, but the data session was rejected — usually an APN setting or a line that needs to re-register. On a Miyaw eSIM the APN is normally automatic, so the fix is usually to re-register the line or, on a few devices and on Japan plans, to set the APN by hand.