Symptoms
- Transfer QR code or prompt fails partway through
- New phone shows 'eSIM setup failed' or times out
- Old phone loses service before the new one gets it
- Carrier app shows the transfer as incomplete
Likely causes
- CommonWeak Wi-Fi or cellular connection during transfereSIM transfers need a stable internet connection on the phone(s) involved.
- CommonTransfer attempted with the old phone already reset or offlineSome transfer methods need the old phone to still be active and connected during the process.
- PossibleCarrier account not fully synced or transfer request expiredTransfer authorizations from the carrier can time out after a set window.
- Less commonSoftware incompatibility between very old and very new phone modelsSome direct phone-to-phone eSIM transfer features require both phones to support the same protocol.
What to do
- Make sure both phones (if using both) are on Wi-Fi and fully charged before starting.
- Follow your specific carrier's recommended transfer method exactly, since steps differ between direct phone-to-phone transfer, a QR code, and an app-based transfer.
- If using a QR code, generate a fresh one from the carrier's website or app rather than reusing an old one.
- Keep the old phone powered on and connected until the new phone confirms the eSIM is active.
- If the transfer fails, restart both phones and try again from the beginning rather than resuming midway.
- Contact your carrier's support to manually reprovision the eSIM to the new phone if self-service transfer keeps failing.
When to call a pro
If self-service transfer fails repeatedly, contact your carrier's support directly; they can push the eSIM profile to your new phone from their system.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.