The 60-second answer
The causes of a dead eSIM are the same on Android as anywhere: the line is off, roaming is off, mobile data is pointed at the wrong SIM, or the network selection is stuck on manual. What differs is where each manufacturer buries those four settings. Generic Android instructions send Samsung owners to menus that do not exist on One UI, which is why so much troubleshooting advice fails on the most common Android phone. The paths below are per-skin.
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The four checks, per manufacturer
| Check | Samsung (One UI) | Pixel (stock Android) | OnePlus (OxygenOS) |
|---|---|---|---|
| Line switched on | Settings → Connections → SIM manager → tap eSIM → toggle on | Settings → Network & internet → SIMs → tap eSIM → toggle on | Settings → Mobile network → SIM info → tap eSIM → toggle on |
| Data roaming on | SIM manager → eSIM → Roaming → on | SIMs → eSIM → Roaming → on | Mobile network → eSIM → Data roaming → on |
| Mobile data on this line | SIM manager → Preferred SIM → Mobile data → eSIM | SIMs → Mobile data → eSIM | SIM info → Preferred SIM for data → eSIM |
| Automatic network selection | Connections → Mobile networks → Select network → Automatic | SIMs → eSIM → Automatically select network → on | Mobile network → eSIM → Automatically select → on |
Work it in this order
Wait three minutes after landing
Registration on a foreign network takes longer than you are used to. Turn airplane mode off and leave it alone before changing settings.
Run the four checks for your phone
Use the table above for your manufacturer. In practice one of those four is the cause in the large majority of cases — most often roaming being off on the travel line.
Turn roaming OFF on your home SIM
Separate from the check above, and easy to miss: leaving your home line roaming abroad is how people come back to a surprise bill even though they bought a travel eSIM.
Toggle airplane mode, then restart
30 seconds of airplane mode forces re-registration. If that fails, a full restart re-reads the eSIM profile and clears stuck states.
Reset network settings
Samsung: Settings → General management → Reset → Reset network settings. Pixel: System → Reset options → Reset Wi-Fi, mobile & Bluetooth. This clears Wi-Fi passwords but does not delete your eSIM profiles.
Check the error wording
If you see "not provisioned", that is an account-side problem — see eSIM not provisioned. If you see "no service" or "network not available", see network not available.
Samsung-specific quirks
- **SIM manager, not SIMs.** One UI uses its own screen under Connections. Instructions written for Pixel will not match.
- **Preferred SIM settings are separate.** Samsung splits calls, texts and mobile data into three independent preferences — setting the eSIM for data does not move calls, which is usually what you want.
- **Dual SIM plus eSIM.** On models with two physical slots, adding an eSIM can disable the second physical SIM. Check whether the tray SIM went dark before assuming the eSIM failed.
- **Region matters.** Some Samsung models sold in specific markets ship without eSIM hardware at all. Check device compatibility before troubleshooting a phone that never supported it.
Pixel and OnePlus quirks
- **Pixel handles transfers well.** Pixel 7 and later can move an eSIM between devices without a new QR code — see transferring an eSIM.
- **Pixel automatic switching.** Stock Android may switch data back to the SIM it thinks is better. If data keeps reverting to your home line, set the travel eSIM explicitly rather than relying on automatic selection.
- **OxygenOS renames things per version.** OnePlus moves eSIM settings between "Mobile network" and "SIM info" across releases. Search Settings for "eSIM" rather than following a fixed path.
Frequently asked questions
Why do generic Android eSIM instructions not match my Samsung?
Because Samsung One UI uses its own SIM manager screen under Connections, while stock Android uses SIMs under Network & internet. Most guides are written against a Pixel, so the paths simply do not exist on the most widely used Android phone.
Does resetting network settings delete my eSIM?
No. It clears saved Wi-Fi networks, Bluetooth pairings and network preferences. eSIM profiles survive it. That is what makes it a reasonable step before anything destructive.
My Android says "SIM not provisioned MM#2". Is that different?
Yes. That means the network identified your profile but found no active plan attached — an account-side state, not a settings problem. See our guide on eSIM not provisioned.
Can I use an eSIM and two physical SIMs at once?
Usually not. On most dual-SIM Android phones, activating an eSIM disables the second physical SIM slot. Check whether your tray SIM went inactive before concluding the eSIM is broken.
Sources & further reading
Daniel Reyes
eSIM & Mobile Networks Writer
Daniel is a telecoms writer who has covered mobile networks and eSIM technology since 2019. He breaks down carrier coverage, device compatibility, and activation step by step.