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There have been a lot of questions asked recently in the form of How do I install Ubuntu on my $randomphone? I'm not sure Ask Ubuntu is the right place for these questions.
While they fit the general concept of having a direct question, with a presumably direct enough answer, they also seem to be too specific. Every model of phone is different, and so there is no general answer that will work for all phones, like there is with installing Ubuntu on a PC. It requires someone with specific knowledge of the phone in question, to be able to provide a definite answer, and requires other users to have the exact same phone, for it to be generally useful to them.
Should these be closed as off topic, as they are better asked on another forum (such as XDA Developers)?