It now worked. I was now able to successfully install Ubuntu Touch. I'm already in the process of doing the basic configuration and have already set up the device

Is this the correct Android version of the file you downloaded? I can't use the Chrome browser. I have to download the file via the Chrome browser first and then I can use it. But this time it's the correct Android version. I hope it works

I don't know what to do next because there is no flash file included, as I said, the whole thing is new territory for me

I'm sorry that half of it suits me, unfortunately it doesn't help because the whole thing is relatively new territory for me.

If you mean the Google sample tool with which you can also install Chromos, I can tell you that it doesn't work. Even now when I search for an Android recovery tool, it doesn't exist for me or it's not available for my country

If that's the program you mean to restore the operating system, it's integrated into Google Chrome and select the pixel device there, it doesn't find the device

Unfortunately there is a small problem: the Android operating system is no longer available because it was already replaced with this Debian operating system, but I wanted to install the Ubuntu operating system and it didn't work.

The instructions don't really help me much if I just get error messages!

I've been trying to install Ubuntu for several days now but somehow it doesn't work, the other operating system can be installed.

worked
Droidian Phosh

don't work
Droidian Cutie Shell ( Display not configured correctly, everything feels like it's 800 instead of 100 and no settings can be opened)

Ubuntu Touch
20.04/stable and 16.04/stable

The device I use is a Google Pixel A3 XL
the program to install with the version ( UBports installer (0.10.0 ) )
with Ubuntu Touch it downloads the things but as soon as the operating system wants to start you automatically go back to the Fast Food Manager and the operating system doesn't start at all and only the one debian operating system.

Of course, all the requirements are already configured so that the bootloader is unlocked, otherwise I wouldn't be able to install the Debian operating system.