@advocatux ok, I think we are done. In the previous OS version I had on my phone

android-gadget-service enable rndis

was enough. Reading the guide you posted I found out there is a

sudo tethering enable

to be executed. I tried and now this post is flowing through my BQ E4.5
Now I have just two more questions: before to see the command I had already enabled RW permissions on my device. Is there a way to go back to RO without reinstalling the OS or is it impossible as described here? Should I be scared of having a RW OS or is it ok?
Thank you for the support up to here.

@ziggutas be sure you don't have other active connections than USB connection with your phone (ethernet cable, wifi, other USB modem...), otherwise hostname command may return informations about that.
@Lakotaubp I agree, I'm going to create a new thread

@kugiigi already added in the bug report 6 minutes before your last post

@kugiigi already added in the bug report 6 minutes before your last post

Hello @kugiigi, yes you understand correctly. I guess UT tweak tool just calls

android-gadget-service enable rndis

because I have tried it and I see the same behaviour. After that you have to call

sudo tethering enable

and it should work. Remember to do both, not just the second one, and it is necessary each time you switch to MTP.

If someone here is interested, the solution is there.

@advocatux ok, thank you, I'll have a look in that. For now I think it's enough today

Just to summarize:

• no need any OS modification
• no need developer mode enabled
• just run on phone terminal:

android-gadget-service enable rndis
sudo tethering enable

ps Would it be difficult to integrate this with the network menu? It's a pretty common feature to require.

@advocatux ok, I think we are done. In the previous OS version I had on my phone

android-gadget-service enable rndis

was enough. Reading the guide you posted I found out there is a

sudo tethering enable

to be executed. I tried and now this post is flowing through my BQ E4.5
Now I have just two more questions: before to see the command I had already enabled RW permissions on my device. Is there a way to go back to RO without reinstalling the OS or is it impossible as described here? Should I be scared of having a RW OS or is it ok?
Thank you for the support up to here.

Ok, for completeness I've tried another cable and I'm experiencing the same issue. Moreover, both of them work fine for MTP.

No question is stupid when debugging
I haven't tried (I will) but the one I'm using is the same I used to install UBports UT, and I had no problem.

Hello, this story begins here, but I will go to summarize it shortly.
Setting:
device BQ Aquaris E4.5
OS UBports Ubuntu 16.04 (OTA-7)

After the upgrade from the last Canonical Ubuntu Touch release to UBports Ubuntu 16.04 (OTA-7) I'm not able anymore to activate USB tethering and use my phone as a USB modem. If I run

android-gadget-service enable rndis

it correctly returns

rndis enabled

and my computer (Ubuntu 16.04 LTS) starts trying to connect to the cabled network, but it actually never gets an IP address (despite an enp0s29u1u3 interface appears). From phone terminal there is no visible interface about this connection. Wi-Fi hotspot works fine.
I don't have another computer to try, but I will try at least with another OS.
Let me know what else can be useful to debug this problem.

@advocatux I've no knowledge to answer, I don't know which are the requisites to run android services (but it would be very useful at this stage for Ubuntu Touch appealing to have access to the full play store for all the devices, while the community works to create native applications).

@ziggutas be sure you don't have other active connections than USB connection with your phone (ethernet cable, wifi, other USB modem...), otherwise hostname command may return informations about that.
@Lakotaubp I agree, I'm going to create a new thread