Not connecting to device, and runs indefinitely / RPC server not started

[craftpip]

Adb output:

adb devices
List of devices attached
ZY2243GTVC      device

And script:

from uiautomator import Device

d = Device('ZY2243GTVC')
print(d.dump()) # this line is not executed. the script keeps running

I tried first with a AVD that worked perfectly, but i'm facing this problem on using a physical device.

Please help, Thanks