# QRTB 2.4.2 - New eNB software has been released!

**URL:** <https://community.na.baicells.com/t/qrtb-2-4-2-new-enb-software-has-been-released/1330>\
**Category:** Announcements\
**Created:** [October 7, 2020, 10:32pm UTC](https://community.na.baicells.com/t/qrtb-2-4-2-new-enb-software-has-been-released/1330 "2020-10-07T22:32:07Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![jesse](https://avatars.discourse-cdn.com/v4/letter/j/c77e96/32.png) [@jesse](https://community.na.baicells.com/u/jesse)\
**Post date:** [October 7, 2020, 10:32pm UTC](https://community.na.baicells.com/t/qrtb-2-4-2-new-enb-software-has-been-released/1330/1 "2020-10-07T22:32:07Z")

</div>

QRTB 2.4.2 for Nova 436Q and Neutrino 430 TDD base stations has been released. This version mainly adds additional SAS support for DC carrier mode: (1) dual SAS registration and (2) channel reuse when using two antennas.

**Supported Hardware:**  
Nova 436Q _(4\*1W eNB | mBS31001)_  
Neutrino 430 _(4\*250mW eNB | pBS31010)_

Middle Software Download: [https://na.baicells.com/download/BaiBS\_QRTB\_2.0.8.IMG](https://na.baicells.com/download/BaiBS_QRTB_2.0.8.IMG)  
Software Download: [https://na.baicells.com/download/BaiBS\_QRTB\_2.4.2.IMG](https://na.baicells.com/download/BaiBS_QRTB_2.4.2.IMG)

**Changelog:**

```
==========================
Version BaiBS_QRTB_2.4.2
--------------------------

New Features:
- Added: SAS: Multi-registration support for DC mode
- Added: SAS: Channel reuse support for DC mode
- Added: Network Listening (Neutrino 430)
- Added: Restoring default configuration will keep network settings
- Added: Verification of import configuration file

Improvements:
- Improved: Changed FCC ID to 2AG32MBS3100196N (436Q)

Bug Fixes:
- Fixed: Abnormal GTP-U packet processing may cause eNB reboot
- Fixed: RF will re-enable on reboot when RF is set to disabled
- Fixed: eNB cannot successfully boot up when neighbors are configured
- Fixed: eNB cannot successfully boot up when CBSD category=B and height=6 in DC mode
- Fixed: CPI certificate issue will cause 2nd Cell to not come up
- Fixed: Packet loss during heavy traffic when using SFP interface
```