if (only) you came, we could see each other. Here, there is also a wish of "you come"

I agree with Henry, that is misspelt. It should be "yarın yazarım --> I will write [to you] tomorrow.

Benim de güzel geçiyo ama tel. Çekmiyo yarın yazarın

" Mine is also going well but my telephone[cell phone] cant get network here, so I will write to you tomorrow " 

My attempt as a learner

Mine is also passing/going well (maybe holidays?)

but the telephone (?) is not taking (receiving messages?)

you will write tomorrow

(maybe this is misspelt and should be yarın yazarım = I will write tomorrow)

 http://www.youtube.com/watch?v=gZjJh515QRY&feature=related