Z2M OTA only IKEA Devices Not others

[ShadowFist]

@Madn3ssi

On the Z2M there are other Philips Hue Wall switch Module connected with the ‘old’ firmware. How can I fix this that Z2M can update it? And other devices from other company’s

Not very clear from your post, but do you actually see an OTA update if you go to Z2M > OTA section?

If you do, then all you need is to wake up the device by pressing any button, then click Update device firmware (red button in my screenshot) immediately afterwards.
Otherwise, click Schedule Update (blue button in my screenshot) and it will update by itself when it next checks for updates.

Edit: or maybe the firmware shows up in ZHA but doesn’t actually work Philips Hue 3216131P6 & 4034030P6 Stuck on Firmware 1.104.2