Steps to try

  1. Underground stations often have partial or no cellular coverage.
  2. The phone will reconnect on exit; wait 10–20 seconds.
  3. If Wi-Fi is available on the platform, use it while underground.

Still stuck?

Reach Openline support 24/7 through any of these channels:

When you write in, include your purchase code (the OL-… code we emailed you) and, if the eSIM is already installed, its ICCID (Settings → Cellular → tap the Openline line). That's enough for us to find your plan and diagnose without back-and-forth.