Default D803 stuck while flashing stock at 49%

Hey guys,

I have hit a dead end. I am stuck on a bootloop with no recovery installed. Actually, I do have Phliz recovery installed but it glitches everytime i try to go on it, I cant see anything apart from blurred lines. I tried flashing to stock using Lg support tool but I get stuck at 49%. Searching through XDA, I found that I have to wipe system/factory reset but I cant do that with a glitchy recovery.

What I have not tried:
- A different computer, I dont think it will help because I need to wipe the system which I cant
- ADB, i dont know how to do it

Is there anyway i can factory reset using the computer. Or is is it possible to flash another recovery such as TWRP by going into the glitchy Philz.

Any help will be much appreciated