E21 V2.0 Release Firmware (Click to download)
Version: 221.30.1.106
E21 V2.0 Beta Firmware (Click to download)
Version: 221.30.10.15
Note
It is recommended to use Release and LTS version firmware.
Release Notes
Version: 221.30.10.15 (Beta)
Release Date: June 30, 2026
Supported SmartPlus Version: V6.0
New Features
Support setting date and time manually.
Extended limitation of dial time to 300 seconds.
Version: 221.30.10.14 (Beta)
Release Date: June 17, 2026
Supported SmartPlus Version: V6.0
Optimization
Improved the user experience.