After a lot of searching, I finally found this solution on the Yu forum where DoomLord answered and it worked. Basically, I had to add the yuphoria device id to the adb_usb.ini file.
Open the Windows command prompt (Windows Key + R) Ènter:% HOMEPATH% .android and then click OK. This will open the hidden .android folder in the current user's home folder. There you will see a file with the name: adb_usb.ini Edit the file using Notepad or Editplus / Notepad + Just add the text: 0x2a96 without pressing any additional input / new line characters, save the file
now go to the command line and restart adb: adb kill-server adb
Now the device will start to display!
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