What happens if my travel eSIM doesn't work? — troubleshooting guide
Travel eSIMs are reliable — but occasionally things go wrong. Here's how to fix them.
Work through these steps before contacting support — most issues resolve in under two minutes.
Step 1 — Check data roaming is on
The most common cause of connection issues.
iPhone: Settings → Cellular → tap your Proost eSIM → turn on Data Roaming
Android: Settings → Connections → Mobile Networks → Data Roaming → enable
Step 2 — Toggle Airplane Mode
On for 10 seconds, then off. Forces your phone to reconnect to available networks.
Step 3 — Check the correct eSIM is set as data line
iPhone: Settings → Cellular → Cellular Data → select Proost eSIM
Android: Settings → Connections → SIM Manager → set Proost as mobile data
Step 4 — Manually select a network
iPhone: Settings → Cellular → Network Selection → turn off Automatic → select a local network
Try a different network if the first doesn't connect.
Step 5 — Restart your phone
A full restart clears connection states that toggling settings won't fix.
Step 6 — Contact Proost support
Email hello@proost.com.au with your order details. All Proost purchases are covered by Australian Consumer Law — if the eSIM doesn't work as described, you're entitled to a remedy.