OK, guys i tried a lot of hours to play with these ideas but the only thing i was able to do is to semi brick the phone because TWRP didnt work as expected and took me some hours to take it back in normal....

So a faster question should be, is there a way to turn my phone back to android if i had installed ubuntu touch? (backup was a totally failure)

Hello, i would like please to help me on how to full backup my Nexus 5 device in case i want to get back to Android if i cant go on with linux..... Is there any guide or something please?

Thanks in advance!