Hi,
As I know ... you can use the update mechanism integrated ... (only restart don't works)
At end when it restart ... it's the part that don't work
... so at this point go back to ADM disable Domoticz in App. Central ... wait for some second (to be sure all is closed gracefully) then Enable it again ... and updateis done
I have updated Domoticz to 3.5877 ... with this method
If you don't succeed ... I will modify the script ... to rewrite the update (perhaps it works on my system ... because I pass through beta ...
Philippe.