Activation

Install your eSIM before you fly. Don't turn on data roaming until you land. Here's the safest activation timeline and why it works.

If your eSIM QR code won't scan, display it on a second screen, fix the lighting, or install manually. Here's the full troubleshooting list.

Install your eSIM on Wi-Fi before you fly — the plan won't start until you connect abroad. Here's how to install safely and avoid early activation.

Step-by-step from getting off the plane to having Eflexsim data. The two-minute activation flow plus what to check if you don't see signal.

iPhone asks you to pick a default voice line and data line during eSIM install. Here's what each setting does and the right choice for travel.

Most eSIMs configure APN automatically. When they don't, here's how to enter APN by hand on iPhone and Android to get data flowing.

Installing an eSIM in airplane mode works if you're on Wi-Fi. Connecting the eSIM to a cellular network — the actual activation — needs airplane mode off.

Going to two countries with separate plans? Install both eSIMs at home, switch between them in cellular settings as you cross borders.

Your eSIM plan starts at the local time of the first country you connect in. Here's how time zones affect day-count and what to expect when you travel.

iPhone asks during eSIM install which line should be your default for calls. Here's what each option means and the right pick for travel.