Whether you're using an iPhone 13, iPhone 15 Pro Max, or even an Android device, knowing how to manage your eSIM, IMEI, and network settings is crucial—especially when traveling. This guide covers how to check if your device is unlocked, how to manage roaming, and how many eSIMs each model can store.
eSIM Limits on iPhone Models
» Wondering how many eSIMs can iPhone 12 have or how many eSIMs can iPhone 16 have?
Most newer iPhones support multiple profiles, and the iPhone 15 Pro Max can handle up to 8 eSIMs, with 2 active at once.
» If you're unsure about your device status, here's how do you know your iPhone is unlocked or how to check if iPhone is unlocked:
Go to Settings → General → About → Carrier Lock.
If it says “No SIM restrictions,” your phone is unlocked.
Finding Your Device’s IMEI and SM-DP+ Info
» Need to register or switch networks? Here's how to check the IMEI of iPhone or simply IMEI how to find.
You can find it under Settings → About.
» For eSIM activation, you may need to manually enter a SM-DP+ address.
Users often search:
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With eSIM Prime, you get the SM-DP+ address and activation instructions directly in your email—no hassle.
Fixing SIM Card Issues and Roaming Errors
» Seeing sim card failure iPhone 13 or damaged sim card iPhone? Switch to eSIM to avoid hardware issues entirely.
» If your iPhone says no SIM, it may be due to an inactive profile or roaming error.
» Android users can also check unlocking status by going to Settings > About phone → Carrier Lock. (For Samsung: how to check if Samsung phone is unlocked in settings)
International Travel Tips for iPhone Users
» Before traveling, learn how do I turn off roaming on my iPhone or data roaming on iPhone on or off.
» You can also track your usage:
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how to check your hotspot usage on iPhone
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how to check iPhone hotspot usage
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how to know how much hotspot you have left iPhone
Need to reduce costs? Learn how to save on data iPhone or how to use iPhone in Europe using a local eSIM plan.
Planning to call home? Here’s how to make international calls on iPhone:
Use FaceTime, WhatsApp, or dial directly with the country code. If you're with Claro, look for settings under iPhone 13 Claro.
Want to dive deeper into how eSIM tech works?
Read this: 👉 eSIM Technology – The Future of Global Connectivity