eSIM Troubleshooting: Common Installation Errors and Fixes

eSIMs make traveling so much easier — no more hunting for a local SIM card shop or fumbling with a tiny SIM tray at the airport. But like any tech, installation doesn't always go perfectly on the first try. If you've hit a snag while setting up your eSIM, don't worry. Most issues are quick to fix once you know what's causing them. Here's a rundown of the most common installation errors and how to solve them.

"Unable to Scan QR Code"

This is probably the most frequent hiccup. It usually happens for one of these reasons:

• Screenshotting the QR code. Scanning a QR code on the same screen you're trying to install it on doesn't work. Instead, open the QR code on a second device (a laptop, tablet, or another phone) and scan it with the phone you want to activate.
• Low screen brightness or glare. Turn up your screen brightness and make sure there's no glare or blur on the code.
• Code already used. Most eSIM QR codes are single-use. If you've already scanned it once, you'll need to switch to manual installation using the activation details (SM-DP+ address and activation code) provided by your provider.

"Could Not Add Cellular Plan" or "Not Accepted" Errors

This one usually points to a device or network issue rather than a problem with the eSIM itself. Try these steps:

1. Check your Wi-Fi connection. eSIM installation requires an active internet connection — ironic, but true. Make sure you're connected to stable Wi-Fi before starting.
2. Restart your phone. A simple reboot clears out temporary glitches that can block installation.
3. Update your software. Older iOS or Android versions sometimes have bugs with eSIM profiles. Go to your settings and install any pending updates.
4. Confirm your device is eSIM-compatible and unlocked. Some carrier-locked phones (especially those bought on installment plans) block third-party eSIMs entirely. Check with your carrier if you're unsure.

eSIM Installed but No Internet Connection

You've successfully added the eSIM, but data still isn't working. This is almost always a settings issue:

• Turn on data roaming for the eSIM line in your network settings — this is required even for "local" data-only plans.
• Set the correct line for data. If you have both a physical SIM and an eSIM active, make sure your phone is using the eSIM for mobile data, not your home SIM.
• Manually select the network. In rare cases, your phone may not auto-connect to the right local network. Go to network settings and manually choose the recommended carrier.
• Check activation timing. Some eSIMs activate only once they connect to a network in the destination country, so nothing will happen until you land and your phone searches for a signal.

"Maximum Number of eSIMs Reached"

Most phones support multiple eSIM profiles, but only a limited number can be stored at once (even if only one is active). If you've installed several eSIMs from past trips, go into your settings and delete old, unused profiles to free up space for a new one.

When All Else Fails

If you've tried everything above and it's still not working, don't keep guessing — reach out to your eSIM provider's support team with your order number and device model. A quick message can usually resolve device-specific quirks that aren't covered by general troubleshooting.

Stay Connected, Hassle-Free

At Arivia SIM, we know connectivity issues can be stressful, especially when you're traveling. That's why our eSIMs come with clear step-by-step setup instructions and responsive customer support whenever you need help. Browse our global eSIM plans and get set up before your next trip — so you can spend less time troubleshooting and more time exploring.