LG H811, cant flash KDZ or resurection remix, please help

hello i think i bricked my LG G4 H811 20i, and im asking for advice on what to do

im going to break this down into a few parts
1) the device and its setup
2) what caused the inital problem, and what changed
3) what i did, after.
4) its current state
5) my questions

part 1: the device and its setup
the device is a tmobile LG G4 H811 with the 20i bootloader
i know im on 20i because as soon as i got the phone (or return to stock) i turned off the cell data and wifi. (plus lg up reports my device as a h81120i)
my bootloader is unlocked.
i was running official resurection remix with the super su binary replaced with magisk and llama sweet kernel

part 2: what i belive caused the inital problem and what changed
yesterday i decided to try the CTT mod
after installing (i already had a previous backup on hand) it went through the initialing apps and got stuck on starting android
i booted back into recovery and cleared dalvik and cache and rebooted, it initialized the apps but hung at starting android.

part 3: what i did, after.
so i resorted to a backup i had previously made, which completed initial boot initialized the apps and got stuck at the starting android again. the backup had the same rom as i was running, just older data.
so i pull the battery, booted into recovery and did a clean flash of the rom, i formatted system, data, cache, dalvik/art before flashing. i keep the rom on my phone for those just in case times.
it did the same again.
so now i tried to restore with a kdz using LG up
it stopped at 9% with error 0x2000 invalid command response
i did not try lg flash tool

i also tried restoring the 20i complete zip from autoprime in here http://ift.tt/1QsMdwY
after i install it and tap reboot twrp tells me no os installed, i ignored it, because fastboot is still working, and it booted fine.

next i flashed resurrection remix using normal methods and left it on all night, in the morning it was still starting android, a good 7 hours later.

part 4: its current state
its back on stock, however im going to leave the device off until i get this figured out.
if i try and flash resurection remix or a backup it hangs after initalizing apps.
i can still boot into recovery, fastboot, and download modes, just fine.
but i cant flash the kdz using LG up.

part 5: my questions
im wondering a few things.
a) if a tot restore would help me, however i cant find a h811 20i tot.
b) what does it lgup's error 0x2000 invalid command response mean.
c) is there anything else i can do to fix my phone.

if you need any further info from me please let me know and i will post it ASAP

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