@Flohack ... and I have installed the correct image of UBports without any problem. That's a piece of good work and useful work from the UBPorts team. Fred.

@Marathon2422 Thanks for all these advices. I have not the time to do it quietly now : I'm going to do eight days of sailing at sea next week. On my return I will try all that. Fred

Hi,
I finally managed to restore my original system (Ubuntu) after installing SP_Flash_Tool_v5.1824_Linux and downloaded the ROM VEGETA01A-S11A_BQ_L100EN_2016_161207.zip
It took me a while to understand that the scatter file was in the .zip !
Thank you all for your help.
Fred

Hello UBports community !
I recently managed to install UT 16.04 on my Aquaris E5 (Ubuntu Edition).
But I can not make my phone work nor make calls: he tells me that my SIM card is not registered.
But he detected it and accepted my SIM PIN.
I had no problem of this kind with my previous system (the latest Canonical Ubuntu Touch).
When I go to "Cellular Parameters / Carrier & APN / Carier", the operator search is automatically performed, mine is found (Free) but it refuses me to select it. When I return to "Carrier & APN", the entry "Carrier" remains at "None".
I suspect a write access problem, but on which device or file?
Another strange thing that can be linked: it does not save the password of my WiFi network and creates a new entry in the list of networks every time I leave it.
Does anyone have an idea of ​​the source of these problems?
Fred