[mikkelke]

I also successfully updated the firmware from 0x50 to 0x54 through Zigbee2MQTT. The firmware file comes directly from the download URL used by the Salus gateway, which stores the link to the latest firmware it installed.

[github-actions]

Merging this pull request will add these changes in a following commit:

diff --git a/index.json b/index.json
index 6f6ae31..d84230e 100644
--- a/index.json
+++ b/index.json
@@ -11413,5 +11413,15 @@
       "Sonoff"
     ],
     "modelId": "ZG-204ZS-z"
+  },
+  {
+    "fileName": "SAR70ZA_00000054_20260702.ota",
+    "fileVersion": 84,
+    "fileSize": 455106,
+    "url": "https://raw.githubusercontent.com/Koenkk/zigbee-OTA/master/images/SalusControls/SAR70ZA_00000054_20260702.ota",
+    "imageType": 122,
+    "manufacturerCode": 4216,
+    "sha512": "5c8a49a7545a1dc1f717a069a29f124b51f85d1aaca0bfbc5c1b1a1b371f866c1bcb9edc88e24657aa9eff4366addd7f71d1519a2dcff7bb7cdb2ce3f0344c93",
+    "otaHeaderString": "SQ610"
   }
 ]
\ No newline at end of file