My primary SIM is using roaming instead of my eSIM
2 minprimary simroamingaccidental
If your regular SIM is set as the mobile data line with roaming enabled, it will use your home operator's (expensive) international roaming instead of your MondoMate eSIM. The fix is simple: switch the data line to MondoMate and disable roaming on your regular SIM.
- 1Go to your SIM settings and confirm MondoMate eSIM is the active mobile data SIM
- 2If it isn't, switch the data line to MondoMate eSIM
- 3Find your regular SIM in settings and disable data roaming on it specifically
- 4Restart your phone to apply the changes
How to tell which SIM is using data
iPhone (iOS)
- 1Settings → Mobile Service → Mobile Data
- 2This shows which SIM is currently set for data
- 3To disable roaming on your regular SIM: tap your regular SIM line → disable 'Data Roaming'
Android
- 1Settings → Network & Internet → SIM Manager
- 2Check which SIM is set as the preferred data SIM
- 3Tap your regular SIM → disable 'Data roaming'
If you believe your regular SIM was charged for roaming while MondoMate was supposed to handle data, contact your home operator. They can advise on dispute procedures.
Was this article helpful?