# Gateway firmware upgrade

To upgrade the gateway firmware, click “System Configuration”->”Network”.

Click “CLICK HERE” link on the bottom of the screen in the row:

“To upload new firmware, <mark style="color:blue;">CLICK HERE</mark>. The current firmware version is 1.xx. Firmware may be uploaded over the network connection using HTTP. ..”

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Select the new firmware image.

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The WIN gateway firmware versions can be downloaded from Onedrive \ICU Dokument - Documents\Software\WIN\NWINGW Firmware.

Version 1.40 can be downloaded from [ ICUController\_Firmware\_v1.40 (added support for 4-20mA and 0-10V (NWIN004 and NWIN005)).zip](https://icuscandinavia060.sharepoint.com/:u:/s/ICUDokument/Eb5r4fJog5NDmvpf73gnoagBpT6625Z2e1EbZtIl_V5kjQ?e=wIFEwt)

<figure><img src="https://2429681196-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F0vLm0km8knyJJgcLOzxB%2Fuploads%2FnRKL4sISG6qHyNPl5nqP%2Fimage.png?alt=media&#x26;token=86c28156-4243-49aa-abbd-106c5cecc52d" alt=""><figcaption></figcaption></figure>

Click “Upload”.

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The upload progress shall be shown in the Status field.

<figure><img src="https://2429681196-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F0vLm0km8knyJJgcLOzxB%2Fuploads%2FepM2fq2drmetrRXPdTzI%2Fimage.png?alt=media&#x26;token=7a4910d1-345c-4d59-adff-750456d17d0e" alt=""><figcaption></figcaption></figure>

Follow the instructions on screen.