esim3 / support --channel=email

How can we help?

Find answers to common questions below, or send a message directly — include your order number and we can move faster.

support.contact

Send a message and our team will reply by email.

support@esim3.example

support.quicklinks[3]

Installation guide

Scan, tap, or type — every way to install your eSIM.

Supported devices

Check if your smartphone is compatible with eSIM.

FAQ

Find answers to commonly asked questions.

support.activation[3]

Your activation code

Your order page shows a QR code, a one-tap install link, and the individual fields your phone asks for. They're all the same eSIM — you only need one of them to work. An eSIM installs only once, so don't delete the plan from your phone until your trip is over.

Scan the QR code

needs a second screen

Open your order on a laptop or another phone, then scan it with the phone that will use the eSIM. A phone can't scan a code displayed on its own screen.

Tap "Install on this iPhone"

iOS 17.4+

Open your order page on the iPhone itself and tap the install button. iOS passes the code straight to the eSIM installer — nothing to scan or type.

Enter the details manually

works on every device

Choose "Enter details manually" on your phone, then copy the SM-DP+ address and activation code from your order page. Leave any confirmation-code field blank.

Read the full installation guide

support.issues[5]

Troubleshooting

Can't scan the QR code

only one phone availablecamera won't focusQR code on the same screen

A phone can't scan a QR code shown on its own screen
Open your order on a laptop or second phone, then scan it
On iPhone (iOS 17.4+), tap "Install on this iPhone" instead
Or enter the SM-DP+ address and activation code by hand

eSIM won't install

installation failserror message appearsinvalid activation code

Ensure you have a stable Wi-Fi connection
Check that your device is carrier-unlocked
Copy the code with the copy button — a single typo will fail
Make sure you haven't already installed this eSIM

No signal at destination

no data connectionroaming not workingnetwork unavailable

Enable your eSIM line in Settings → Cellular
Turn on Data Roaming for the eSIM line
Toggle Airplane Mode on and off
Manually select a network carrier

Didn't receive the email

no email after purchasecan't find QR codeemail is empty

Your QR code always lives on your order page — go to Orders
Check your spam or junk folder for the confirmation
Search for emails from our domain
Contact support with your order number

Data running out quickly

data depleting fastunexpected usageapps using too much data

Disable automatic app updates over cellular
Turn off background app refresh
Use Wi-Fi whenever available
Check data usage in Settings

View all FAQs

support.response

Getting a faster answer

General inquiries

Questions about plans, coverage, etc.

Urgent issues

Put "Urgent" and your order number in the subject

Business inquiries

Bulk orders, corporate plans, or partnerships.

business@esim3.example