eSIM technology has made international travel much easier by allowing travellers to activate mobile data digitally without inserting a physical SIM card. However, many users are still confused about how eSIM works, whether their phone supports it, and why the “Add eSIM” option may not appear on their device.
Even customers with newer phones sometimes struggle during setup, while others mistakenly assume all modern smartphones support eSIM when they do not.
This guide explains how eSIM installation works, how to check compatibility properly, and why some phones do not show the eSIM option at all.
What Is an eSIM?
An eSIM, or embedded SIM, is a digital SIM built directly into the phone. Instead of inserting a plastic SIM card, users install a mobile plan digitally by scanning a QR code or entering activation details manually.
eSIM is commonly used for:
- Travel data plans
- International roaming alternatives
- Using dual SIM functionality
- Separating work and personal numbers
However, not every phone supports eSIM, even if the device is relatively new.
How to Check If Your Phone Supports eSIM
Method 1: Dial *#06#
The fastest way to check eSIM capability is by dialling:
*#06#
If your phone supports eSIM, you will usually see an EID number listed on the screen.
EID stands for Embedded Identity Document and is associated with eSIM functionality.
If there is no EID shown, your device most likely does not support eSIM.
Method 2: Check for “Add eSIM” Option
You can also check inside your phone settings.
On iPhone
- Go to Settings
- Tap Mobile Service or Cellular
- Look for:
Add eSIM
or
Add Cellular Plan
If this option does not appear, eSIM may not be supported or may be restricted.
On Samsung Galaxy
- Go to Settings
- Tap Connections
- Tap SIM Manager
- Look for:
Add eSIM
If the option is missing, the phone may not support eSIM.
Why Some New Phones Still Do Not Show “Add eSIM”
This is one of the most common customer questions.
Many people assume that because their phone is new, it must support eSIM. Unfortunately, that is not always true.
Several factors affect eSIM availability:
- Regional device restrictions
- Carrier restrictions
- Model differences between countries
- Firmware limitations
- Carrier-locked phones
Carrier-Locked Phones and SIM Restrictions
Some phones sold through mobile carriers are locked to that network.
Even if the hardware technically supports eSIM, the option may be hidden or disabled until the device is unlocked.
To check this:
On iPhone
- Go to Settings
- Tap General
- Tap About
- Look for:
Carrier Lock
If it says:
No SIM restrictions
your iPhone is unlocked.
If it shows another status, the device may still be carrier locked.
Example: Why Samsung Galaxy A51 Does Not Have “Add eSIM”
The Samsung Galaxy A51 is a common example of customer confusion.
Many users assume the Galaxy A51 should support eSIM because it is a relatively modern phone. However, most Galaxy A51 variants do not include eSIM hardware at all.
Because the device itself is not eSIM compatible, there is no “Add eSIM” option inside the settings.
This is normal behaviour and not a software issue.
In contrast, higher-end Samsung models such as:
- Galaxy S23 series
- Galaxy S24 series
- Galaxy Z Fold series
- Galaxy Z Flip series
commonly support eSIM depending on region and carrier version.
How to Install an eSIM
Step 1: Connect to WiFi
eSIM installation requires an internet connection during activation.
Step 2: Open SIM Settings
Navigate to your SIM or Cellular settings depending on your device.
Step 3: Tap “Add eSIM”
Select the option to add a new eSIM or cellular plan.
Step 4: Scan the QR Code
Use your camera to scan the QR code provided by your eSIM provider.
Some providers also support manual installation codes.
Step 5: Enable Data Roaming
For travel eSIMs, data roaming usually needs to be turned ON for the service to work internationally.
Common Reasons eSIM Installation Fails
- Phone is not eSIM compatible
- Device is carrier locked
- No internet connection during setup
- QR code already installed on another device
- Outdated phone software
- Wrong SIM selected for mobile data
Most installation issues are related to compatibility or settings rather than problems with the eSIM itself.
eSIM technology is becoming more common in 2026, but compatibility still varies significantly between phone models, regions, and carriers.
Before purchasing an eSIM, travellers should always check:
- If the device supports eSIM
- If an EID number appears via *#06#
- If “Add eSIM” exists in settings
- If the phone is unlocked with no SIM restrictions
Understanding these basics helps avoid confusion during setup and makes travelling with eSIM much smoother and more reliable.
Deja un comentario