Matter Refrigerator: Commissioning Timeout & Missing Mode Attributes in SmartThings App

[markgergis]

Matter Refrigerator: Commissioning Timeout & Missing Mode Attributes in SmartThings App

Environment

• Device under test: Matter-enabled Refrigerator prototype
• SmartThings Hub: Hub - 55" Crystal UHD (000.056.00010) Matter SDK version 1.4-0, Controller Version (1.0.33-9)
• Device Profile: refrigerator-freezer-tn-tl
• SmartThings mobile app: iOS (build 22F76) on iPhone (iOS 18.5)
• Commissioning tool: Chip Tool v1.4.0
• Matter firmware: 1.4.0

Description

1. Commissioning

   • During the Matter commissioning flow, the process consistently times out after ~2 minutes.
   • Error code displayed in SmartThings app: 39-504
   • After tapping Cancel, the fridge still eventually appears in the device list (despite timeout), but commissioning logs indicate the session never truly completed.

2. Device UI in SmartThings App

   • Once the “New Fridge” device appears in the app, no Main Modes (e.g. Off, Holiday) are listed (the dropdown is disabled).
   • Under the Refrigerator section:
     • The current temperature and Set temperature slider appear and update correctly.
     • Set temperature change value is hardcoded to 0.1 (10 STEPs in Matter)
     • The Mode tile shows the active mode value, but the list of supported modes is empty.
   • Under the Freezer section:
     • Neither Mode nor Mode list are shown.
     • Freezer temperature is reported (e.g. –5 °C) correctly.

Steps to Reproduce

1. Reset the refrigerator to factory settings.
2. Open the SmartThings iOS app and start “Add device → Matter.”
3. Scan QR code / NFC or enter setup code.
4. Wait for commissioning; observe timeout after ~2 min.
5. Tap Retry (or wait); device eventually appears in the hub’s device list.
6. Open the newly-added “New Fridge” device.
7. Inspect the “Main”, “Refrigerator” and “Freezer” sections in the Controls tab.

Expected Behavior

• Matter commissioning flow should complete within the standard timeout window (or provide a clear progress indicator).
• Supported Mode lists should be populated for Main, Refrigerator and Freezer clusters, allowing the user to select between all implemented modes.
• Freezer temperature control and mode selection tiles should appear and function.

Actual Behavior

• Commissioning session times out (Error 39-504), then recovers indirectly but may not enroll all endpoints/clusters properly.
• Supported mode lists are empty across Main and Freezer endpoints. Refrigerator shows only current mode value, no options.

Note

• The device was actually getting commissioned and functioning successfully around a month ago, the previously commissioned device in fact is still functioning. (was commissioned on 7th of May 2025)

Attachments

• Screenshots:
  1. Commissioning in progress (times out)

2. Error screen (Code 39-504)

4. Controls tab with empty Main and Refrigerator mode list

5. Controls tab with missing Freezer mode

6. The previously commissioned device on 7th of May 2025
   

Logs

log.txt