Resize the camera to fit your phone

Hello everyoneI have a problem with changing the size of the camera for different phones. I'm making a game that will always be upright, but there was a big problem! when I zabildil project and began launch his on tablet and phone image of the was shown not correctly, on tablet I saw empty the brink, and on phone I not saw half of the screen, was climbing on forums, but scripts which I found, not helped(one of them:https://gist.github.com/Glavak/ada99b57023db3c941c5caebe42a70c5).Please help, thanks in advance! and sorry for the errors in the construction of sentences, my English is very bad and I used Google translator