zh:ember: Adapter EZSP protocol version (13) lower than Host. Switched.

[marioconstantin11-byte]

Hello, I know this might be an ever green but I have never found an answer that makes my Zigbee work. I have a Sonoff Zigbee Dongle Plus Version E. I have tried the original (when bought) Firmware. Have also tried: v7.4.0.0-zbdongle-115200 as well as 7.4.5.0. My configuration is:
ata_path: /config/zigbee2mqtt socat: enabled: false master: pty,raw,echo=0,link=/tmp/ttyZ2M,mode=777 slave: tcp-listen:8485,keepalive,nodelay,reuseaddr,keepidle=1,keepintvl=1,keepcnt=5 options: "-d -d" log: false mqtt: {} serial: port: >- /dev/serial/by-id/usb-ITEAD_SONOFF_Zigbee_3.0_USB_Dongle_Plus_V2_20231219210913-if00 adapter: ember

I got the following error:
[2026-02-10 06:10:41] info: zh:ember:ezsp: ======== EZSP started ======== [2026-02-10 06:10:41] info: zh:ember: Adapter EZSP protocol version (13) lower than Host. Switched. [2026-02-10 06:10:41] info: zh:ember: Adapter version info: {"ezsp":13,"revision":"7.4.4 [GA]","build":0,"major":7,"minor":4,"patch":4,"special":0,"type":170} [2026-02-10 06:10:41] error: z2m: Error while starting zigbee-herdsman [2026-02-10 06:10:41] error: z2m: Failed to start zigbee-herdsman [2026-02-10 06:10:41] error: z2m: Check https://www.zigbee2mqtt.io/guide/installation/20_zigbee2mqtt-fails-to-start_crashes-runtime.html for possible solutions [2026-02-10 06:10:41] error: z2m: Exiting... [2026-02-10 06:10:41] error: z2m: Error: [BACKUP] Current backup file is not for EmberZNet stack.

I looked and tried around everything. Still get the error. Also tried MQTT with + without user.

What can I do?

[chris-1243]

Error: [BACKUP] Current backup file is not for EmberZNet stack.

Stop Z2M and rename coordinator_backup.json to whatever you wish. Start Z2M and you should good to go

[Kowy54]

It works. but it's not a solution