Common eSIM issues (triage tree)
Last updated: 2026-05-01 · About 12 min read
Support queues balloon when travelers skip deterministic checks: toggling the wrong line, reusing QR screenshots, or deleting profiles mid-provision. This page is the same order agents follow internally. just without the hold music.
If you have not activated yet, warm up with the activation guide; if hotspot is the symptom, branch to the tethering article after ruling out default data mistakes.
Connected but no data (default line traps)
Validate that cellular data toggle is enabled for the travel line and that low-data mode / data saver isn’t pinning traffic to Wi-Fi-only apps.
iOS: Settings → Cellular → scroll per-app permissions. Android: Data usage warnings may silently block backgrounds.
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“QR already used” & single-shot policies
Regenerate credentials from dashboard. public Slack dumps of QR codes are compromised instantly.
If a provider issues LPA strings, paste carefully; line breaks corrupt SM-DP+ addresses.
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Profile storage limits & spring cleaning
Apple allows multiple stored profiles but limited active radios; delete ancient travel profiles once billing cycles end.
Android OEMs vary. Samsung’s SIM manager surfaces conflicts more clearly than some budget ROMs.
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APN attached but DNS fails
Flush by toggling airplane mode 20s or reseating profile if vendor allows.
If manual APN edits exist, compare field-for-field against latest PDF. not blog reposts.
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Airplane mode & radio wedges
Rapid airplane toggles during install can strand modems until reboot.
Reset network settings only as last resort. it wipes Wi-Fi passwords too.
Moving profiles between phones
Apple Quick Transfer coverage grows but MVNO travel SIMs often require fresh QR installs.
Never sell a phone with active travel profiles loaded. factory reset after export.
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Troubleshooting FAQ
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