@advocatux I found the solution here: https://askubuntu.com/questions/348714/how-can-i-access-my-ubuntu-phone-over-ssh/601972#601972
Thanks for your support.

@pierref This issue has been fixed in my case by updating my system from OTA-4 to OTA-5.

I updated my Notes app through the Open Store and now the Notes app crashes every time I launch it. My system is 16.04. Is it possible to downgrade to a previous version? I find no workaround. Am I the only one having this issue?

@advocatux I found the solution here: https://askubuntu.com/questions/348714/how-can-i-access-my-ubuntu-phone-over-ssh/601972#601972
Thanks for your support.

Yes, I experiment the same problem, also with the Aquaris E4.5, but I don't have any clue on where to start looking for a solution.

@advocatux I think so. Thank you.

@advocatux Yes: the problem is not in the cable itself, but beyond: it could be hardware, but also the software. Who knows? Is there any tool for diagnostic?

The USB connector of my phone seems to be broken: the battery is loading but no data seems to be sent anymore, with any computer where I am trying.
I need to run adb commands on the phone from my Ubuntu laptop. I want to know if this is possible wireless or by bluetooth.