Release Date: October 6th, 2026
Region: EMEA & APAC
Software Version: v43
A new software update is planned to be available for download for CEL-FI QUATRA 4000e/EVO on October 6th, 2026, with the following:
New Feature
- Smarter relay channel selection: CEL-FI QUATRA 4000e/EVO now features an enhanced relay channel selection algorithm that evaluates detected 4G LTE and 5G NR donor cells and automatically selects the most suitable channels based on network-defined priorities and signal quality.
Improvements
- Improved CU link reliability: Enhanced CU link monitoring and recovery provide link stability between the Network Unit and Coverage Units.
- Improved network detection and radio assignment: Updates to LTE and 5G NR network-information processing improve the system’s ability to identify and relay suitable network channels.
- Improved recovery after configuration changes: The system now more reliably requires network timing and resumes relay operation after band or channel-setting changes.
- Improved LAN and system stability: Updates to LAN network handling to improve system stability during high LAN network traffic and other high-latency network operating conditions.
- Improved embedded modem IMEI visibility in WAVE Portal: You can now view the Network Unit’s embedded LTE modem IMEI remotely for a specific system in WAVE Portal.
Bug Fixes
- Fixed issues that could prevent relay operation after background network searches, band changes, or channel reconfiguration.
- Fixed an issue that could keep the system in cell search when it could not decode network information.
- Resolved an internal communication timing issue that could affect communication between system components.
- Resolved an issue that could prevent a CU link from starting or recovering correctly.
- Resolved an issue that could cause incorrect CU link alarms when a CU was intentionally disabled from WAVE Portal.
- Fixed an issue that could cause an incorrect shutdown alarm while the system was automatically recovering a CU connection.
- Various changes for better performance, stability, and security.
How the update will be delivered:
- WAVE Portal: Users will receive a software update availability prompt if the system is online on the WAVE Portal after the release date.
- If automatic software updates are enabled and the system is online, QUATRA 4000e/EVO is planned to update automatically by October 20th, 2026.
- WAVE Field Tool: Users will be able to perform the software update when connecting to QUATRA 4000e/EVO locally over USB after the release date.
If you have any questions about this release or encounter issues during or after the update, please contact your Nextivity representative or Nextivity Support for assistance.