Best answer as chosen by user Dafydd: None at all.

by R. Proffitt Moderator - 2/8/13 1:21 PM

In Reply to: Updating Flash. by Dafydd Moderator

I'd need to hear more, such as the device in question and why you could not install Flash like the rest of us.

Here's the page I used for my Nexus 7.
http://www.howtogeek.com/120277/how-to-install-flash-on-the-nexus-7-and-other-jelly-bean-devices/

I can't tell what you tried.
Bob