j2 pro me marshmallow kr dy plzzzzx

Solution
If the phone itself doesn't show any update options in "Settings" then there actually is no update for that device. So unless you want to root it (which I cannot help with) you would not be able to have a newer OS unless you got a different phone.

Now if you want info on rooting the device, please visit the following forum... http://www.tomsguide.com/forum/forum-117.html