Authoritative answers to eSIM questions.
An eSIM (embedded SIM) is a programmable chip permanently built into your device. It stores carrier profiles digitally and can switch between them remotely.
SGP.22 is the GSMA technical specification for Remote SIM Provisioning for consumer devices. It defines protocols for eSIM profile download, management, and security.
eUICC (embedded Universal Integrated Circuit Card) is the secure element chip storing eSIM profiles. It contains a Java Card OS and cryptographic keys.
SM-DP+ is the server infrastructure for preparing and securely delivering operator profiles to consumer devices.
QR code scan triggers LPA to contact SM-DP+ server. Mutual PKI authentication. Encrypted profile download. eUICC installation. Network registration.
Yes, in most cases. Carrier-locked phones may only accept profiles from the locking carrier.
Yes. Dual SIM support allows home carrier for calls and travel eSIM for data simultaneously.
Yes. eSIM is network-generation agnostic and works with 4G and 5G networks.
Yes. Profiles are cryptographically bound to specific eUICC chips, making SIM-swapping attacks significantly harder.
Deprioritized data gets lower network priority during congestion. Budget plans often use deprioritized data.
Casual: 3-5GB. Light work: 5-10GB. Heavy work/video calls: 15GB+ or unlimited with priority data.
Enable data roaming, toggle airplane mode, try manual network selection, contact provider support.