Shelly 2PM Gen4 — Zigbee Router behavior and OTA via Z2M after 2.0.0 update?

[Mapplish]

Hi everyone,

I have several Shelly 2PM Gen4 devices running in Zigbee mode, integrated via Z2M to control roller shutters. They are
mains-powered and show up as "Router" in Z2M, but after 6+(?) months they have never appeared as active routing nodes in
the Z2M network map — no other devices route through them.

My suspicion is that the simultaneous WiFi operation on the same ESP32 chip is interfering with Zigbee routing.
However, since the devices are installed inside walls, I'm hesitant to disable WiFi without a guaranteed way to
re-enable it remotely.

After updating one device to firmware 2.0.0, the firmware version is now visible in Z2M for the first time, which
suggests improved Zigbee reporting.

My two questions:

1. Does firmware 2.0.0 fix or improve the Zigbee router behavior for the Shelly 2PM Gen4?
2. Is Zigbee OTA via Z2M now functional for these devices? If yes, disabling WiFi and relying solely on Zigbee OTA
   would be a viable path for me if they can act as routers the.

Any experience or insights appreciated. Thanks!

[aw1604]

Hello Mapplish,

I have 2x Powerstrips and 5x EM-Mini (Gen4) in my zigbee network, and updating them to 2.0.0 did noticeably improve zigbee stability (Even with wifi enabled too).
It is also possible to disable / re-enable wifi from the z2m frontend (but still a bit tricky) so there is no need to wait for OTA support, just turn wifi on when you want to manually check for updates