Upgrade firmware GS1900-24HP Rev A1

murdok

Hi,

I need upgrade the firmware for my switch but in repository I found only the firmare for Rev C0.
Where can I find the correct version for Rev A1?

Zyxel_Tina

Hi @murdok,

Welcome to the Zyxel Community!

The latest firmware version available for your GS1900-24HP (Rev A1) switch is V2.70(AAHM.3)C0. The "C0" in the firmware designation refers to the official patch version and is not specific to a hardware revision. Therefore, you can install firmware versions labeled "C0" on your Rev A1 device.

You can download this firmware via this link.

Since the GS1900-24HP has reached EoL status, we recommend exploring the GS1900-24HPv2 or our current switch offerings here: Switch | Zyxel Networks for optimal performance and support.

murdok

Really strange. In this switch I have found the firmware version V2.70(AAHM.3) | 03/04/2025. The version in your link have another date.

Zyxel_Tina

Hi @murdok,

We applied the firmware version and rebooted the device. Afterward, the GUI displayed correctly as shown in the image below.

Since the GS1900-24HP has reached EoL status, we recommend exploring the GS1900-24HPv2 or our current switch offerings here: Switch | Zyxel Networks for optimal performance and support.