I been beating the crap out of this device I have managed to push su apk using an exploit on my pc but no success ohh cant tell from pc if this is newer suapk ill try that but this is not easy im not sure if anyone remembers lg lucid and sprtd rctnfr exploit but it reboots 3 to 4 times then it works so thats been my angle too
I see. Is that how the exploit is spelled? Spent a few minutes on several search engines, and couldn't find anything about that exploit. As for rebooting, I used to have a working Optimus F3 phone (until it overheated to epic proportions

), and had to boot twice to get into CWMT recovery, IIRC. I also do the same thing with my recently rooted Samsung Galaxy Tab 4 tablet. That one has the TeamWin recovery for it, v. 2.8.
I also noticed that the Tribute doesn't have a Download mode on it. I've tried all the button combos, and even tried to see if the LG Flash tool could turn that on via PC. No dice.

As for pushing su, tried that via adb through Ubuntu. Can't get the phone in root mode, but I tried.
Speaking of the F3... I miss root so much for a phone, that I'm (semi-seriously) considering getting a decent used one that isn't yet rooted! I'm fairly sure that if I did, it should still run some of the latest games I like, even with the thing at JB 4.1.2. If I do get one, I'll probably leave it stock, and just disable/freeze the bloat I don't use.