@flohack Wow that was quick! It worked!

BTW I have something to report with the installer. After starting the installation with the phone in recovery, the phone rebooted to recovery again while the installer was downloading Ubuntu. After this, the installer got stuck on the "Preparing system image" screen. As I noticed that my machine didn't recognize any new device connected, I unplugged and replugged the phone (this time my machine recognized the device connected) and the installer immediatly started sending the image and correctly completing the installation.

@Flohack Ok, I did some research... I had data and cache partitions formatted as f2fs while ubuntu needs ext4. Fixing this made possible to install Ubuntu Touch. Maybe it could be useful to say it in the installer!

Now I have another problem: phone is stuck at loading screen with the five flashing dots. How can I debug this?

@flohack The phone reboots to system after install, but hangs on samsung spash screen. I can connect to adb shell and run uname -r, but as it shows cyanogenmod (the ROM I had previously installed) I get that installation was not successful.

Could you point me to manual installation guide? If running it manually doesn't solve the problem we can rule out the installer.

I looked at https://pad.ubports.com/p/samsung-s3neo-alphatesting, but there seems to be a nextcloud link which is now empty (also someone translated it in spanish, but previous versions are accessible).

Hi, tried the installer but the device reboots to Samsung splash screen.

Let me know which info I can provide you.

I can access adb shell while the device is stuck at the splash screen: if i run "uname -r" it returns the name of the ROM I had previously installed (even if I wiped the system in theory). So it's safe to say it did not install ubuntu...?