I have found a pretty easy way to get this to work.
Firstly connect to the EufyLife and and get the MAC
Next open Terminal on your home assistant and write:
(AA:AA:AA:AA:AA:AA = your scales Mac)
bluetoothctl
power on
scan on
pair AA:AA:AA:AA:AA:AA
trust AA:AA:AA:AA:AA:AA
I then got a new device notification for the scales (in my case the C1)
I have a spanking new C1 sitting next to an ESP32 BT Proxy and absolutely no activity in HA or ESPHome logs.
The scale is fine as I was able to pair it with the phone app and so the BTProxy node as it is doing other BT duties rather well.
Am I missing something?
If I try to add the Eufylife life integration manually, it shows “No device on Network” or similar such.