eSIM QR Codes Explained: How They Work and What to Know

eSIM QR Codes Explained

The QR code is the primary method for delivering eSIM profiles to your device. Understanding how these codes work helps you use them effectively and avoid common pitfalls during eSIM activation.

What Is Inside an eSIM QR Code?

An eSIM QR code encodes essential information needed to download your carrier profile:

• SM-DP+ address: The server URL where your eSIM profile is stored
• Activation code: A unique identifier that matches your specific eSIM profile on the server
• Optional confirmation code: An additional security code some providers require

The format follows the GSMA standard: LPA:1$[SM-DP+ address]$[activation code]. This standardized format ensures compatibility across all eSIM-capable devices.

How QR Code Activation Works

When you scan an eSIM QR code, a multi-step process occurs behind the scenes:

• Your device reads the SM-DP+ address and activation code from the QR code
• The device contacts the SM-DP+ server over an encrypted connection
• Mutual authentication occurs between the device and server
• The server locates your eSIM profile using the activation code
• The profile is encrypted and sent to your device
• Your device installs the profile into the secure element of the eSIM chip
• The carrier network is activated and your device connects

Important QR Code Facts

• One-time use: Most eSIM QR codes can only be used once. After scanning, the profile is bound to your device
• No expiration (usually): Unscanned QR codes typically remain valid for months, but check with your provider
• Device-specific: Once installed, the profile cannot be moved to another device by rescanning the same code
• Store safely: Save a screenshot or print the QR code in case you need it for provider support

QR Code Security

eSIM QR codes are designed with security in mind:

• The QR code itself does not contain your carrier credentials, only the server address and profile identifier
• The actual profile download occurs over an encrypted channel
• Even if someone copies your QR code, they cannot use it after you have already activated it
• Treat your QR code like a password until it is activated

PrivateSims delivers your eSIM QR code instantly after purchase. Simply scan it with your device camera from the Settings menu, and you will be connected in minutes.