lg g3 f400 = and Android Lollipop topic

Can someone(pref operator) let me know if for effect there is a lollipop version for the korean f400s and a way to root it.
I have found a 20C file which i downloaded and installed only that because i can't access the recovery via pushing the volume keys (see previous question) I cant flash any adb's instructions
I wish to upgrade to 5.0 but not at the point of losing almost all my apps because all of them work only in rooted cells.
sincerely