Research Guide
eSIM Technology Guide
1. Technical Architecture
The eSIM ecosystem is built on GSMA SGP.22 standards. The core component is the eUICC (embedded Universal Integrated Circuit Card) — a secure hardware element that stores and manages multiple operator profiles. Remote SIM Provisioning (RSP) enables remote activation via QR code.
// PROVISIONING FLOW
1. Device scans QR → extracts SM-DP+ address
2. Mutual TLS authentication with SM-DP+ server
3. Encrypted profile download to eUICC
4. Profile enabled → network registration
2. Activation Protocol
iOS
- Settings → Cellular → Add eSIM
- Use QR Code → scan
- Confirm plan details
- Label and activate
Android
- Settings → Network → SIM Manager
- Add eSIM → scan QR
- Follow prompts
- Set as data SIM
3. Plan Selection Framework
| Use Case | Data Volume | Key Features |
|---|---|---|
| Tourist (1 week) | 5–10 GB | Coverage breadth |
| Extended travel | 15–30 GB | Validity period |
| Business traveler | 20+ GB | Hotspot, 5G |
| Digital nomad | Unlimited | No throttle, hotspot |
4. Troubleshooting Matrix
No service: Verify eSIM active → airplane toggle → manual network → restart → provider support
Slow speeds: Check allowance → verify 4G → manual operator selection → location change
QR error: Check internet → clean lens → manual activation code → provider support