Deconz cannot pair sensors now

I had two aqara temp sensors and an aqara door sensor working on Deconz through Raspbee premium plugged into serial on my Pi running HA.

I noticed the Door sensor had stopped updating so deleted it and tried to re-pair it with no luck.

I then reset my gateway to see if that would help and updated the Deconz addon.
Now I have no sensors (to be expected) but also cannot re-pair them back.

I have Deconz addon 5.3.2
I have HA 0.109.1
I have a raspbee premium connected
The integration has given me a gateway name 00212E04102E

As well as not being able to pair my devices now I cannot update the firmware on the gateway, it says update successful but then when you go back in it says the same update is available again.

Any thoughts?

Are thesw 3 sensors your only devicea connected to the Raspbee? How far away are they from the Raspbee?

You can’t update the firmware like this. Take a look at the guide here to update your firmware.