'Unable to Activate eSIM' Error — How to Solve It
Getting an 'Unable to Activate eSIM' or 'Unable to Complete Cellular Plan Change' error? Here's what causes it and how to fix it step by step.
The 'Unable to Activate eSIM' error appears when the eSIM installation process fails partway through. It's almost always caused by one of three things: a carrier lock, a connectivity issue during installation, or a QR code that's been used before.
Common causes
- Phone is carrier-locked and doesn't accept third-party eSIM plans
- Wi-Fi connection dropped during installation
- QR code was already activated on this or another device
- iOS or Android version is outdated
- Device date/time is incorrect (interferes with certificate verification)
Fixes to try (in order)
Check your Wi-Fi connection
A dropped connection mid-installation is the most common cause. Make sure you're on a stable Wi-Fi network — not a public hotspot with a login page. Try your home network if possible.
Restart your phone
Turn fully off and back on. Then try the installation again.
Check your device date and time
iPhone: Settings → General → Date & Time → Set Automatically → On. Android: Settings → General Management → Date and Time → Automatic date and time → On.
Update iOS or Android
Outdated system software can cause eSIM installation failures. Go to Settings → Software Update and install any pending updates.
Try the manual entry method
If QR scanning keeps failing, use the manual code entry method instead. Your confirmation email contains the SM-DP+ Address and Activation Code for manual installation.
Check for carrier lock
Go to Settings → General → About (iPhone). If Carrier Lock shows a carrier name, your device is locked. Contact your home carrier to unlock it.
iPhone-specific
If you see 'Unable to Complete Cellular Plan Change', this is the same underlying issue with a different message. The fixes above apply equally.
If your phone is carrier-locked
A carrier-locked phone is the most common cause of repeated activation failures. Contact your home carrier and request an unlock — most carriers do this for free after 12 months. Once unlocked, retry the eSIM installation.
When to contact support
If you've tried all the steps above and still get the error, contact Vyroam support at support@vyroam.com with:
- Your order number
- Your device model and iOS/Android version
- The exact error message
- What you've already tried
If the QR code has become unusable due to a failed installation attempt, we'll assess whether a reissue is possible.
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