getScreenshot tool is not working

[hpsaturn]

Overview

After launch the tool it freeze on:

Log output

INFO:root:Receiver set up
INFO:root:Trying to connect with 94:B5:55:C8:E0:2A: lunokIoT_e02a
INFO:root:Device 94:B5:55:C8:E0:2A connected
INFO:root:Found write characteristic 6e400002-b5a3-f393-e0a9-e50e24dcca9e (H. 34)
INFO:root:Found notify characteristic 6e400003-b5a3-f393-e0a9-e50e24dcca9e (H. 31)
Downloading screenshoot (this may take a long time)...
WARNING:root:Device 94:B5:55:C8:E0:2A disconnected
INFO:root:Stopping Bluetooth event loop
Downloaded data: 0  byte
Uncompressed data: 0  byte
(penv) (av/square_watchface) avp:tool$ python3 getScreenshoot.py 
Searching for lunokIoT device...
Found at:  94:B5:55:C8:E0:2A
INFO:root:Receiver set up
INFO:root:Trying to connect with 94:B5:55:C8:E0:2A: lunokIoT_e02a
INFO:root:Device 94:B5:55:C8:E0:2A connected
INFO:root:Found write characteristic 6e400002-b5a3-f393-e0a9-e50e24dcca9e (H. 34)
INFO:root:Found notify characteristic 6e400003-b5a3-f393-e0a9-e50e24dcca9e (H. 31)
Downloading screenshoot (this may take a long time)...

[lunokjod]

the code was disabled when BLE encryption was coded due incompatibility, this part must be refactored, and modernized