Stuck on fastboot flashing unlock(Now Black screen)

[wilminator]

@aibd

Did you do the whole of the proceedure here Installing /e/OS after removing UbuntuTouch on the GS290?

Yes, I followed every step accurately.

@aibd

To someone in the same position as you, would you say that was the solution?

Yes, it solved my black Screen. Before following the instructions, the screen stayed black no matter what I did ( pressing buttons for Hardware Reset).

Next time, before using the easyInstaller, I would carefully check if my phone is on Android10. I assumed it because i did all the updated the phone supposed, still I cant gurantee it was on 10.