NebulaFlex Switch XGS1935 Series - V4.90 Patch 2 Firmware Release
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Zyxel_Melen
Posts: 4,992 
Zyxel Employee
Zyxel Employee
Zyxel Switch XGS1935 Series Release Note
September 2025
Firmware Version on all models
(Click Hyperlink to download the firmware directly)
Zyxel XGS1935-28HP - V4.90(ACJX.2)C0
Zyxel XGS1935-28 - V4.90(ACJW.2)C0
Zyxel XGS1935-52HP - V4.90(ACJZ.2)C0
Zyxel XGS1935-52 - V4.90(ACJY.2)C0
New Feature and Enhancements
1. [Nebula 19.10] Support Port advisor.
2. [Nebula 19.20] VLAN ingress check enabled by default.
Bug Fix
C=Cloud mode, S=Standalone mode
| Bug fix | C | S |
| 1. [eITS #250800443] Special characters in the port name cause the port information to appear blank on the Dashboard. | V | V |
| 2. [eITS #250200357] The switch has drop the EAPoL unicast packet. | V | V |
Please refer to the Download Link for more details.
Zyxel Melen
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