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eSIM installed but no connection — the eight usual causes

2026-09-29

The eSIM installed fine, but there is no data. Almost always one of these eight, listed from most common to least.

1. Data roaming is off

A travel eSIM is technically roaming, even though it feels local. If roaming is off for that line, nothing works.

  • iPhone: Settings → Cellular → pick the travel eSIM → Cellular Data Options → turn on Data Roaming
  • Android: Settings → Network & internet → SIMs → pick the eSIM → turn on Roaming

2. The eSIM is not set as the data line

Having two lines in the phone means one of them carries data. If the phone still points at your home SIM, you are either on expensive roaming or on nothing.

Go to the mobile data setting and choose the travel eSIM as the line for data.

3. You have not arrived yet

Most plans only work in the destination. Switching the eSIM on at home or in transit will show no service. That is expected.

4. The phone is still holding the old network

After landing, phones sometimes cling to the last network they saw. Turn airplane mode on for ten seconds, then off. If that does not work, restart the phone.

5. Automatic network selection picked the wrong one

Occasionally the phone attaches to an operator your plan does not use.

  • iPhone: Settings → Cellular → pick the eSIM → Network Selection → turn off Automatic → pick an operator
  • Android: Settings → Network & internet → SIMs → eSIM → Choose network automatically → off → pick by hand

The plan page names the operators your plan runs on. Choose one of those.

6. The phone is carrier-locked

Phones bought on a carrier contract abroad are often locked and will refuse any other eSIM. It installs but never connects.

The reliable check: ask the operator that sold the phone. There is no legitimate way for an eSIM seller to unlock it.

7. You have run out of data

On a daily plan, running out means the connection is slowed until the next day — slow enough to feel like nothing. On a total-allowance plan, running out means no data at all.

Check your usage on your eSIM page; the link is in the email we sent.

8. The APN is wrong

Rare, and only on some Android models. If all eight steps above fail, check the APN setting in the SIM settings. The plan page lists an APN if that plan needs one set by hand.

If none of that works

Write to us with three things, and it will be much faster than a general description:

  1. The ICCID of the eSIM — it is on your eSIM page
  2. A screenshot of Settings → Cellular showing the eSIM status
  3. Which country you are in

With those three we can check with the operator whether the eSIM has attached to a network, and answer you with something definite instead of a guess.

One thing we will say plainly: if the problem is on our side or the operator's, you get a refund. There is nothing to argue about.

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