Storage [Q] Found (j) over OTA but LG PC Suite says no Update. How to install manually?

I am rooted so a regular OTA update doesn't work. From g to i, I used PC Suite which when it found the i update upgraded me without question. (I.e i didn't have to unroot). Now I want to install j from aug 7 which the phone's update feature shows and downloads. (I thought it was pre release but probably not). How can I find the file on the phone and install it on the PC manually? Would the PC Suite recognize an already downloaded update file (like Itunes does). ?

Any hints to help me find it? Would it have a kdz extension? Right now I am searching with the string "v10j" but nothing is being found.