Troubleshooting

If your Eflexsim eSIM shows no signal, check data roaming, line selection, APN, and network mode. Here's the fastest path from no signal to connected.

If your eSIM has been activating for more than 5 minutes, the fix is usually airplane mode toggle, profile reinstall, or a fresh QR. Step-by-step here.

This iPhone error usually means a carrier-lock, a consumed QR, or a Wi-Fi outage during install. Here's a five-step fix to get past it.

This iPhone error means your phone is carrier-locked or region-restricted. Here's how to identify which, and the path to recover.

This error means your eSIM QR code has already been used or has expired. Here's why it happens and how to get a fresh activation code.

If iPhone doesn't show 'Add Cellular Plan' in Settings, your phone may be carrier-locked, region-restricted, or running an older iOS. Here's the fix path.

Android's most common eSIM install error usually means QR consumed, weak Wi-Fi, carrier lock, or region restriction. Step-by-step recovery here.

PDP Authentication Failure means your phone can't establish a data session even though the eSIM is installed. Here's what causes it and how to fix it.

If your eSIM was working and suddenly isn't, the cause is usually a network handoff, an OS update, or a carrier-side issue. Here's the mid-trip fix flow.

Your eSIM shows signal and data is enabled, but apps say no internet. Five common causes and the order to fix them in.

Native apps load but Safari or Chrome won't open any website. Three likely causes (captive portal, DNS, certificate trust) and how to fix each.

Slow eSIM speeds usually come from weak signal, congested cell tower, throttled plan, or a phone setting. Here's how to diagnose and fix each cause.

Personal hotspot fails to share eSIM data: common causes including disabled hotspot setting, dual-SIM line selection, or partner-network restrictions.

Your eSIM is no longer visible in cellular settings. Causes (accidental delete, iOS update glitch, factory reset) and how to recover it.

Your phone connected to a carrier that isn't the one Eflexsim uses. How to force it to the right network, and what happens if you don't.

How WiFi calling interacts with travel eSIMs. When it helps, when it breaks things, and how to set it up so your home number stays usable abroad.

Your eSIM is installed and ready but your phone is still using the home line for data after landing. Three settings to check, in order.

Known issues with iMessage and FaceTime on travel eSIMs. How to keep them tied to your home number while using Eflexsim for data.