SIM & Device Guide Assistant

SIM & Device Guide Assistant helps you understand common SIM, device and mobile-network questions through clearly organized informational guides.

Explore device information, learn about network compatibility and find guidance for common SIM-related issues—all from one convenient dashboard.

Main features

• Phone Status Guidance
Learn about common phone-status terms and factors to review when assessing a device.

• Network Compatibility
Understand the device and network requirements that may affect compatibility with a mobile service.

• SIM Troubleshooting
Explore guidance for common SIM recognition, connectivity and service-related issues.

• EE Network Guide
Access independent educational information about EE-related network topics. This section is not an official EE service.

• Device and IMEI Information
Learn what device identifiers such as IMEI mean and how they relate to device information.

• Carrier Eligibility Guidance
Understand common eligibility considerations and what to confirm directly with your mobile operator.

• Codes Reference
Browse explanations of supported phone and service codes. Availability and behavior may vary by device, software version and carrier.

• Tips and Guides
Find practical information to help you better understand everyday device and mobile-network use.

• Support and Help
Access general help information and learn when to contact your carrier or device manufacturer for official assistance.

Important disclaimer

SIM & Device Guide Assistant is an independent informational and educational application. It is not affiliated with, endorsed by, authorized by or officially connected with EE Limited, Apple Inc., any mobile operator, device manufacturer or their official services.

The app provides guidance—not official customer support, carrier certification or authoritative device verification. It does not guarantee phone status, network compatibility, carrier eligibility, coverage or service availability.

The app does not change, generate or repair IMEI numbers; unlock devices or SIM cards; bypass security protections; remove carrier restrictions; or activate mobile service.