Published on November 17, 20253 min read

“Unable to Activate eSIM” Error — How to Fix It (Figabytes Guide)

“Unable to Activate eSIM” Error — How to Fix It (Figabytes Guide)

If you’re seeing “Unable to Activate eSIM” on your device, don’t worry — this is one of the most common issues travelers face when installing an eSIM, and it’s usually very easy to fix.

This guide explains why it happens, what it means, and the quick steps you should take to resolve it on iPhone or Android.


❗ Why This Error Appears

The error normally means:

  • Your phone downloaded the eSIM profile

  • But it couldn’t connect to the activation server

  • Or it couldn’t reach a supported mobile network

This is almost always a network or settings issue, not a problem with your Figabytes eSIM.


✅ Before You Begin — Quick Checks

Make sure:

  • Your phone is connected to Wi-Fi

  • Your device is unlocked

  • You’re using a supported device

  • Your plan is valid, not already activated

  • You’re in a covered country/region for the eSIM

If all looks correct, follow the steps below.


🛠️ Fix 1 — Restart Your Device

The simplest fix:

  1. Turn the phone OFF

  2. Wait 10 seconds

  3. Turn it back ON

Then try activation again.
This solves the error in most cases.


🛠️ Fix 2 — Toggle Airplane Mode

This forces the radio to reconnect:

  1. Turn Airplane Mode ON

  2. Wait 5 seconds

  3. Turn Airplane Mode OFF

Then retry activating or turning the line on.


🛠️ Fix 3 — Check Your Network Connection

The eSIM needs internet access to activate.

Make sure:

  • Wi-Fi is ON

  • No VPN is active

  • No proxy or private DNS is blocking the connection

If connected to hotel/airport Wi-Fi, try switching to a different network.


🛠️ Fix 4 — Set the Correct Data Line

If your home SIM is still set as the primary data line, activation may fail.

On iPhone:

  1. Go to Settings → Mobile Data

  2. Set Mobile Data → Figabytes (temporarily)

On Android:

  1. Go to Settings → Network & Internet → SIMs

  2. Set Mobile data → Figabytes

Try activation again.


🛠️ Fix 5 — Enable Data Roaming

Activation may require roaming, especially for travel plans.

iPhone:

Settings → Mobile Data → Figabytes eSIM → Data Roaming ON

Android:

Settings → SIMs → Figabytes → Data Roaming ON


🛠️ Fix 6 — Turn the Line OFF → ON

If the eSIM installed but isn’t activating:

iPhone:

Settings → Mobile Data → Figabytes → Turn On This Line OFF → ON

Android:

Settings → SIMs → Figabytes → Disable → Enable

This forces the device to re-attempt registration.


🛠️ Fix 7 — Add the APN Manually

If the APN didn’t auto-load, mobile data may fail during activation.

Use the APN provided in your Figabytes order details.

iPhone:

Settings → Mobile Data → Mobile Data Network → APN

Android:

Settings → Mobile Networks → Access Point Names → Add APN

Save → Restart → Try activation again.


🛠️ Fix 8 — Check Your Location

Some users try to activate their eSIM before traveling.

Reminder:

  • Your eSIM will not activate until you are inside a supported destination.

  • You can install early, but activation happens only when your phone connects to a local tower in the coverage area.


🚫 Still Seeing the Error?

If the steps above don’t fix it:

  • Your eSIM profile might be corrupted

  • Or your device may have blocked the installation

  • Or the eSIM may have been used on a different device

In this case, contact Figabytes Support and provide:

  • Your order ID

  • Your device model

  • Your iOS/Android version

  • Screenshot of Settings → Mobile Data / SIMs

  • Screenshot of the error message

We will issue a replacement eSIM if necessary.


🎉 Summary

“Unable to Activate eSIM” is common, but almost always temporary.
In most cases, simply doing one of the following solves it:

  • Restart

  • Airplane Mode toggle

  • Enable roaming

  • Switch data line

  • Add APN

  • Retry in a covered destination

Your Figabytes eSIM will be up and running in minutes.

Install your eSIM with confidence

Follow this guided checklist from device prep to activation. Figabytes eSIMs stay ready in your account, so you can install today and switch them on the moment you land.

Most unlocked phones from 2018 onward support eSIM. Run these pre-checks now so activation is stress-free when you land.

  • Make sure your device is unlocked and supports eSIM (iPhone XR/XS or newer, Samsung Galaxy S20 or newer, Google Pixel 4 or newer, and most recent flagships).
  • Stay connected to Wi-Fi during installation so the eSIM profile downloads instantly.

iPhone & iPad

Settings → General → About. Under "Digital SIM," confirm an EID is listed.

Android

Settings → Network & Internet → SIMs (or Connections). Look for "Add eSIM" or "Download a SIM instead."

Unsure about compatibility? Ask our team before you buy.