eSIM installed? Now switch it on when you land — takes 30 seconds.
Go to Settings → Cellular (or Mobile Data).
Tap the ICY SIM plan — labelled by the name you gave it during installation.
Toggle "Turn On This Line" to green.
Go back to Cellular → Cellular Data and select your ICY SIM line.
Tap your ICY SIM line → toggle Data Roaming ON. This is required for data to work abroad.
You'll see a carrier name in the status bar within a few seconds. You're live.
Turn off data roaming on your primary SIM to avoid surprise charges from your home carrier.
Your home SIM still handles calls & SMS. ICY SIM is data-only — your number stays active.
Open the ICY SIM app anytime to see remaining data and plan validity in real time.
Most plans begin their countdown from first data use — not from the purchase date.
Connect to hotel or café Wi-Fi to save mobile data for when you're on the move.
Long-press the connectivity tile in Control Centre to switch SIMs instantly.
Check Data Roaming is ON for the ICY SIM line. Restart your phone. Try selecting a network manually in Settings.
Confirm ICY SIM is the preferred data SIM. APN may need manual config — contact support.
Some plans start validity from activation, not usage. Check plan details in the ICY SIM app.
Buy a top-up plan instantly inside the ICY SIM app — no need to contact support.
Top-up plans available instantly inside the ICY SIM app.