@MrT10001 Thank you.
So I am less anxious. We'll see tomorrow what happens

@MrT10001 Ah ok, thank you !

However, when I use this menu, the installer says that the OnePlus N100 must be "billie2" and mine seems to be called "bengal" (I don't know why).
I think I will stop for this evening.... I try since 3 hours, I need a pause... and I will let the phone charging.

@MrT10001

What do you mean by "drop down menu" ?

English is not my mother tongue, so I ave some trouble to understand

@idonthatevests
I finally reached the fastboot mode.
I used the ubports-installer and wanted to reinstall Ubuntu Touch, but to my surprise, the installer saide that the device is not supported for UT.
How is it possible whereas Ubuntu Touch was installed on this phone before it crashed ?
I am so confused now...

@MrT10001 Thanks for this information;
I will try to charge it (but I have some doubts, because there was a strange message after the Ubuntu update, but I didn't note it down, so I can't remember what the message was)

@MrT10001
I can't boot in recovery mode (in fact, I can't even switch off the phone, I am in a closed loop between the 2 screens).

@idonthatevests
What can I do to boot into ubports recovery ?
what is MSM download tool ?

@MrT10001
I cannot reach the fastboot mode, I only have access to the 2 screens I posted in this discussion.
i am afraid that the problem comes from the smartphone: I saw a forum where users complained about the same problem and they are under android.
This user is in my case (crash after an update) but he is under Android :

Oneplus service system asks for 300€ to change the motherboard...

I tried to reboot by pressing switch key and sound key.
I can reach this screen, but no matter which key I press, the device goes back to "fatal exception".

When I plug the device on my computer and I go to the Ubports-installer, the installer cannot recognize the device.

What can I do?

Hello everyone,
This afternoon, my daughter checked the updates and her Oneplus proposed to install Ubuntu 20.04 "version 6" (she had 20.04 OTA9, so I don't know what is this "version 6").
At the end, the installer proposed to relaunch the device and we now have nothing the phone.

I don't know what to do and she goes back to her boarding school tomorrow evening...
Could you help me ? Do you think, I need to reinstall Ubuntu ? Can I save what she had on her phone ?

Please, please, help me...
Amarurtuuq