Install & Activate

RedEx eSIM Guide

Activate RedEx eSIM for Travel (iPhone & Android Guide)

How to Buy an eSIM?

Choose and purchase your travel data plan on https://redex.vip or the RedEx App (Android/IOS). After purchasing an eSIM, you will usually see QR Code in “My eSIM-Details”and receive a QR Code via email within 2 minutes

Step-by-Step Guide:

Installing eSIM on iPhone & Android

To install and activate your eSIM, select your operating system and the type of installation/activation from the options below. Remember to install your eSIM before your departure and Activate it only at your arrival!

iPhone (iOS) Users Guide

Method A: One-click Installation (Recommended)

Step 1: Install eSIM

In this step, on the eSIM details page in RedEx APP, click on “Install eSIM “, display the important note page, and after clicking “OK, I see”, the user will review the precautions and enter the one click installation

Step 2: Activate eSIM

In this step, click “Install eSIM now“，prompt the user whether to activate a new eSIM, click “Allow”, and the process of automatically installing and enabling eSIM will begin.On the following screen, follow the prompts to install the new Data Plan.

Step 3: Enable Data Roaming

By now, the eSIM is installed on your phone! You will see the new plan in your Settings with the label you chose.The last step is to make sure Data Roaming is turned ON for the eSIM.

Method B: QR code Installation

Step1: Add eSIM

In this step, On your iPhone Setting page, tap Cellular, then tap Add eSIM, and finally tap Use QR code.

Step2: Activate eSIM

In this step, Scan the QR code，the phone will automatically download and enable it.you can assign a name to the eSIM plan on your phone. Label your new plan as “RedEx” or the name of the country you’re visiting to easily distinguish it from your main number.

Step3: Enable Data Roaming

By now, the eSIM is installed on your phone! You will see the new plan in your Settings with the label you choose.The last step is to make sure Data Roaming is turned ON for the eSIM.

Android Users Guide

Method A: One-click Installation (Recommended)

Step1：Install eSIM

In this step, on the eSIM details page in RedEx APP, click on “Install eSIM “, display the important note page, and after clicking “OK, I see”, the user will review the precautions and enter the one click installation page

Step2：Activate Esim

In this step, Click“Enable eSIM immediately”，the process of automatically installing and enabling eSIM will begin，after about a few tens of seconds, the page prompts user eSIM installed successfully， then，click“enable immediately”，eSIM is successfully enabled. Click ‘check’ to perform a settings check.

Step3: Enable Data Roaming

By now, the eSIM is installed and enabled on your phone! You will see a prompt saying”Your eSIM is installed”.You will make sure Data Roaming is turned ON for the eSIM by clicking “to check”

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Method B: QR code Installation

Step1：Add eSIM

In this step, On your Android Phone Settings page, tap “Network&Internet”, then tap “SIMs”, In SIMs list, tap “Add SIM”.

Step2: Activate eSIM

In this step, Scan the QR code，the phone will automatically download and enable it.you can assign a name to the eSIM plan on your phone. Label your new plan as “RedEx” or the name of the country you’re visiting to easily distinguish it from your main number.

Step3: Enable Data Roaming

By now, the eSIM is installed on your phone! You will see the new plan in your Settings with the label you chose.The last step is to make sure Data Roaming is turned ON for the eSIM.

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Essential Tips:

Avoiding Roaming Charges & Data Settings.
If you install the eSIM before you arrive in your destination, be sure to set the eSIM to your primary Cellular / Mobile Data plan when you arrive.
IMPORTANT: Turn on Low Data Mode (iPhone) or Data Saver mode (Android) to prevent background data while using your eSIM.

Purchase and installation process (video tutorial)

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Q & A

Why is my eSIM not activating?

Your eSIM may not be working for a number of reasons — going through a few troubleshooting steps can help you identify the issue and get connected quickly.

Where does my eSIM work?

Remember, your eSIM can only work in its coverage area, if you install the eSIM outside the coverage area, you’ll need to wait until you arrive to connect to a network.

How to check why your eSIM isn’t working?

Step1：Make sure your eSIM is installed correctly

If you’ve followed the instructions to install your eSIM, you should see it under the SIMs section of your device settings — you’ll also see that it’s installed successfully in the app, when possible.

Step2：Make sure the eSIM is ON

Access the “Settings” menu on your device.

Navigate to the “Cellular” menu and view the displayed available plans.

If your eSIM was correctly activated, it should be displayed there with the name or label you assigned to it. And “Turn on this line”is set “ON”

Additional information about the eSIM can be obtained by clicking on it if needed.

Step3：Check the APN settings

Some eSIMs require you to enter a specific Access Point Name, or APN, into your device settings. You can find this in the installation instructions in the app — in many cases, the APN is set automatically.

Step4：Turn on data roaming

Some eSIMs require you to turn on data roaming — you can do this from your device settings. If required, follow the steps.

For iOS devices, you can turn on data roaming for individual SIMs — make sure it’s turned off for your primary SIM to avoid roaming charges.

For Android devices, data roaming usually applies to all SIMs in use — make sure you have your primary SIM turned off to avoid roaming charges.

Step5: Select the network manually

Your eSIM will be able to connect to at least one network in its coverage area — in some cases, it will be able to connect to multiple networks.

In most cases, it will automatically connect to the strongest available network — in some cases, it may choose the wrong network.

Step6：Adjust your network mode

In some cases, it’s easier for your eSIM to connect to a network in a different mode. If you’re attempting to use 5G, try connecting with 4G/LTE or 3G.

For iOS, you’ll need to go to your eSIM in your device settings to adjust the network mode.

For Android, you’ll need to go to your mobile network settings to adjust the network mode.

Once your eSIM is working, you can try adjusting this to your preferred network mode.

Step7：Restart your device

If you’ve tried all the other steps, you can try restarting your device — in some cases, this will refresh your device’s connection and allow your eSIM to connect.

Step8：Check your signal coverage

If none of the troubleshooting steps help, it’s possible that your area’s signal coverage is not strong enough to connect to a network.

How to check if my phone is eSIM compatible?

Most modern smartphones from 2018 onwards support eSIM, including iPhone XS+, Samsung Galaxy S20+, and Google Pixel 3+. Check our compatibility page for your specific device model or look for “eSIM” in your phone settings. View all compatible devices!

Do I need to turn on Data Roaming?

Yes, you must enable data roaming in your device settings for your RedEx eSIM to work. Don’t worry – you won’t face any roaming charges! Simply go to your phone settings, select your RedEx eSIM line, and turn on data roaming.

How do I check if my phone supports eSIM?

The easiest way is to check your phone settings: On iPhone, go to Settings > Cellular/Mobile Data > Add eSIM. On Android, go to Settings > Network & Internet > SIM cards. If you see these options, your device supports eSIM.