Troubleshooting
Work through safe fixes for the most common travel eSIM connection problems.
Most eSIM problems come from one of five things: the plan is outside its coverage area, the wrong line is selected for data, data roaming is off, the APN is incorrect, or the phone has not refreshed its network connection.
Start with the guide that matches what you see. Do not delete an installed eSIM while troubleshooting—many QR codes can only be installed once.
8 guides
eSIM Not Activating? Work Through This List
An eSIM that won't activate is usually a download problem or a settings problem. Work through these checks in order to find which one you have.
eSIM Not Working? Fix No Service or Slow Data
Is your eSIM not working? Fix no service, SOS, bars without internet, or slow data by checking roaming, the data line, APN, and network settings abroad.
What to do when an eSIM QR code will not scan
Fix an eSIM QR code that will not scan, says already used, or cannot be added. Check Wi-Fi, installation status, and manual setup options.
PDP Authentication Failure: What It Means and How to Fix It
A PDP authentication failure means your phone was refused a data session by the network. Here are the six causes and the exact fix for each on iPhone and Android.
How to check and set APN details for a travel eSIM
Check or reset eSIM APN settings on iPhone and Android. Learn when a manual APN is needed and how to avoid common connection errors.
"Keep eSIM" or "Erase Data"? What the iPhone Reset Prompt Means
When iPhone asks whether to keep your eSIM and erase data, the choice matters. Here's what each option does and which to pick when selling or resetting a phone.
How to switch eSIMs while traveling between countries
Switch travel eSIM profiles safely when crossing borders. Label plans, change the data line, protect your home SIM, and avoid deleting profiles.
How to Transfer an eSIM to a New Phone
Transfer an eSIM between iPhones, from iPhone to Android, or Android to Android. What carriers allow, what breaks, and what happens to a travel eSIM.