Shelly BLU Motion ZB (SBMO-103Z) cannot join with ConBee III (deconz adapter) - "unsupported source address mode: 3"

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
18/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Active
Tech stack
typescript
Domain
networking

Research direction

The errors come from the deconz frame parser, logged as zh:deconz:frameparser, on APS-DATA.indication frames: "unsupported source address mode: 3" and "Unsupported response reading for cluster ID '2'" (ZDO Node Descriptor). Start by finding where the source address mode is read and where ZDO responses are parsed in the zigbee-herdsman deconz adapter. Done means the join succeeds and the device is interviewed, which needs a reproduction with the SBMO-103Z or a captured frame to confirm the expected format.

Written by the indexing model from the issue text.

Description

problem
What happened?

The Shelly BLU Motion ZB (SBMO-103Z) cannot join the network when using a ConBee III coordinator (deconz adapter).

The sensor is in Zigbee pairing mode (LED flashing purple), permit join is enabled, and the sensor is placed directly next to the coordinator (LQI 223). The device reaches the coordinator, but the deconz frame parser fails on every attempt with:

  1. "unsupported source address mode: 3"
  2. "Unsupported response reading for cluster ID '2'" (ZDO Node Descriptor request from the device)

The device retries about every 23 seconds (5 attempts) and then gives up. No "device joined" or "device announce" is ever logged.

Additional info: the same sensor also cannot be paired with a ConBee II in deCONZ/Phoscon.
All other 32 devices in the network work fine.

What did you expect to happen?

The device should join and be interviewed, as it is listed as supported (SBMO-103Z).

How to reproduce it (minimal and precise)
  1. Zigbee2MQTT 2.14.3 with ConBee III (deconz adapter)
  2. Enable permit join
  3. Press the button on the Shelly BLU Motion ZB 5 times (LED flashes purple)
  4. Device fails to join, errors appear in debug log
Zigbee2MQTT version

2.14.3

Adapter firmware version

0x26510900

Adapter

ConBee III

Setup

Proxmox LXC (Debian trixie), Node.js 24.22.3, zigbee-herdsman 11.2.0, zigbee-herdsman-converters 26.125.0

Device database.db entry

No response

Debug log

[2026-11-13 17:17:50] info: z2m: Zigbee: allowing new devices to join.
[2026-11-13 17:17:50] debug: zh:deconz: Permit joining on coordinator for 254 sec.
[2026-11-13 17:18:12] debug: zh:deconz:frameparser: Response APS-DATA.indication error: Error: unsupported source address mode: 3
[2026-11-13 17:18:15] debug: zh:deconz:frameparser: Response APS-DATA.indication seq: 52 srcAddr: 0x6fe1 destAddr: 0x0 profile id: 0x0000 cluster id: 0x0002 lqi: 223
[2026-11-13 17:18:15] debug: zh:deconz:frameparser: Response APS-DATA.indication error: Error: Unsupported response reading for cluster ID '2'.
[2026-11-13 17:18:35] debug: zh:deconz:frameparser: Response APS-DATA.indication error: Error: unsupported source address mode: 3
[2026-11-13 17:18:39] debug: zh:deconz:frameparser: Response APS-DATA.indication seq: 37 srcAddr: 0x6fe1 destAddr: 0x0 profile id: 0x0000 cluster id: 0x0002 lqi: 223
[2026-11-13 17:18:39] debug: zh:deconz:frameparser: Response APS-DATA.indication error: Error: Unsupported response reading for cluster ID '2'.
[2026-11-13 17:18:59] debug: zh:deconz:frameparser: Response APS-DATA.indication error: Error: unsupported source address mode: 3
[2026-11-13 17:19:02] debug: zh:deconz:frameparser: Response APS-DATA.indication seq: 24 srcAddr: 0x6fe1 destAddr: 0x0 profile id: 0x0000 cluster id: 0x0002 lqi: 223
[2026-11-13 17:19:02] debug: zh:deconz:frameparser: Response APS-DATA.indication error: Error: Unsupported response reading for cluster ID '2'.
[2026-11-13 17:19:22] debug: zh:deconz:frameparser: Response APS-DATA.indication error: Error: unsupported source address mode: 3
[2026-11-13 17:19:25] debug: zh:deconz:frameparser: Response APS-DATA.indication seq: 2 srcAddr: 0x6fe1 destAddr: 0x0 profile id: 0x0000 cluster id: 0x0002 lqi: 223
[2026-11-13 17:19:25] debug: zh:deconz:frameparser: Response APS-DATA.indication error: Error: Unsupported response reading for cluster ID '2'.
[2026-11-13 17:19:45] debug: zh:deconz:frameparser: Response APS-DATA.indication error: Error: unsupported source address mode: 3
[2026-11-13 17:19:47] debug: zh:deconz:frameparser: Response APS-DATA.indication seq: 223 srcAddr: 0x6fe1 destAddr: 0x0 profile id: 0x0000 cluster id: 0x0002 lqi: 223
[2026-11-13 17:19:47] debug: zh:deconz:frameparser: Response APS-DATA.indication error: Error: Unsupported response reading for cluster ID '2'.

Notes

No response

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