I did the exact same things with my phone, another LG E975.
had to repair it myself considering replacement costs around 150$.
If There is somewhere you could try, it'd be near Psar Chas, At a small shop that looks like a 'registered' Samsung shop, when you walk in you'll see phones and screens and whatnot being replaced.
They're relatively cheap as I understand, But I have not asked them about my LG.
Peace dude!!