You've just landed abroad, installed your eSIM, and you're ready to hop online — only to see "No Service." Frustrating, but here's the good news: it's rarely the eSIM itself. It's usually one overlooked setting.
Fixing a specific phone? Start here
- iPhone 14 eSIM not working → 9 fixes
- Google Pixel 8 eSIM not working → 9 fixes
- Samsung Galaxy S22 eSIM not working → 9 fixes
- Not sure your phone supports eSIM at all? Check compatibility first →
The 5 causes, in order of likelihood
1. Data Roaming is off — the #1 cause
Travel eSIMs connect as roaming lines. Without roaming enabled, you stay offline even with a valid plan (and no, your home carrier won't bill you for it). iPhone: Settings > Cellular > your eSIM > Data Roaming ON. Android: Settings > Network & Internet (or Connections) > your eSIM > Roaming ON.
2. The eSIM line isn't enabled or isn't the data line
After installation you must turn the line on and assign mobile data to it. iPhone: Settings > Cellular > turn the eSIM line ON, then Cellular Data > select the eSIM. Android: Settings > SIMs / SIM manager > enable the eSIM and set it as the data SIM.
3. The APN is missing or wrong
Some providers require manual APN setup. Open your phone's mobile network settings, enter the APN exactly as written in your provider's instruction email, save, and restart. A missing APN is the classic "installed but no data" cause.
4. The wrong network is selected
If the phone doesn't latch onto a supported local carrier, go to Network Selection, turn OFF Automatic, and pick the carrier your provider recommends for that country.
5. The phone doesn't support eSIM (or is carrier-locked)
Not every phone works with eSIM, and carrier-locked phones can refuse third-party eSIMs even when the hardware supports it. Here's how to check your phone in 30 seconds →
Final checks before contacting support
- Restart the phone, or toggle Airplane Mode ON for 15 seconds and OFF.
- Toggle the eSIM line off and back on.
- Confirm your data plan hasn't expired or run out.
- Never delete the eSIM profile — most QR codes are one-time use.
FAQ
Why does my eSIM say "No Service" abroad?
Most often Data Roaming is off, or the eSIM isn't set as the data line. Check causes 1 and 2 above first.
My eSIM installed fine but there's no internet. Why?
That pattern usually means a missing or incorrect APN. Enter the APN from your provider's instructions and restart.
Should I delete and reinstall the eSIM?
No — don't delete it unless support tells you to. Most eSIM QR codes are one-time use and can't be rescanned.