Thanks for this wide and deep explanation. Unfortunately i ended up here after i have made a mistake while flashing my phone.
have a BQ Aquaris E5 Ubuntu Edition (i had) and after using the
tutorial here: http://a25.co/ubuntu-phone-how-to-install-android/ I
accidentally installed the BQ E4.5 scatter file using MTK tools. I
realized too late.
Now, my phone thinks its an E4.5 even tho it has the body of a E5.
screen is pale white and I cannot see anything, however, the system is
working as i can do screenshots and see where i am in the menu. Problem
is the touchscreen doesn't work propperly and i cannot restart to
fastboot mode to work something from there.
Also I am not sure that will work as the screen doesn't show anything (maybe in fastboot?)
My question is if i can install the correct version of Android over this mess?
I use a PC and also an Ubuntu computer so any explanation would be great.