LG G2 D801 bootloop + no download mode, please help!

Alright, so I've tried going through a number of solutions but none of them seem to work for me at this point.

LG G2 D801 (T-mobile version, unlocked)
Rooted device with stump root
Installed TWRP with Autorec

Stupidly took an OTA at this point, it gave me the "secure boot error" once and now the device has a bootloop at the LG screen (without the "secure boot error" text, mind you)
Attempting to enter Download mode (Vol up + plug in usb) has the same bootloop (nothing even close to showing download mode nor fastboot)
I can access TWRP though, and the device is at least visible in adb once I'm in TWRP.

I considered flashing CM to it as is, but I wasn't sure how that would affect the issues with booting and download mode.

Also, before someone suggests this thread about reflashing the kdz/tot, I don't think I can, since I can't seem to enter download mode.

Suggestions? The goal was to get to BlissPop ROM, or CM12.1 if that didn't end up working well for me, although at this point I just want to get it working however I can.

PLEASE HELP! Lg g2 d801 no download mode no recovery mode!

My Lgg2 has no recovery mode and no download mode. It's stuck in a bootloop with the lg logo popping up and after that the lg security logo. I was flashing cloudy g2 3.3 before this mess happened. I was on cloudy g2 2.2 before I was flashing. this whole thing has been a mess. First my phone had been recognized as QHSUSB_BULK but then I used SRK tool to try to unbrick and now it is not recognized as a device. It's like it is unconnected. Please someone help.

Switch d801 to d802

Hello mates

Can I flash stock latest rom of d802 on my d801 without issues ?

Thank you

Sent from my LG-D801 using XDA Free mobile app

Bricked D801 - TOT & KDZ recoveries both failing?

I've got a T-Mobile D801 and tried flashing to the stock lollipop rom D80130b_00 using TWRP and the instructions on this page, but the flash must have failed. I did a full factory reset back to stock 4.4.3 prior to attempting this flash and I'm not sure what (if anything) I did wrong for the flash to fail. I can boot in factory reset mode and select clear everything, but then I just see the android guy with gears turning for 2 seconds and the phone reboots again.

Now I'm in a bootloop where I get an "error: Boot certification verify" above the T-Mobile startup logo followed by a "Demigod Crash Handler: Critical Error!" screen that provides options for rebooting (volume down) or putting the phone into download mode (volume up). After using the volume up the screen displays "Volume Up is pressed: Jump to Dload mode" and after connecting via USB appears in device manager as "LGE AndroidNet USB Serial Port (COM41)". I can't (1) boot directly into download mode or (2) get back into TWRP.

I've tried both the KDZ and TOT methods listed in this thread and neither are working. The LG Flash Tool 2014 / KDZ option starts the LG Mobile Support Tool, but it fails every time once "S/W Upgrade is in progress" reaches 4% with a generic "Upgrade stopped due to an error" message.

The TOT method fails every time with a "Model Information Check FAIL!" message. The full text is - "PID: NULL, IMEI: NULL, Model: , DLL:801, BIN: BIN_LGD801AT-01-V10c-310-260-AUG-13-2013+0.tot , SWV: , SWOV: , Model Information Check FAIL! , 00000000"

I've also tried using srktool to repair fastboot, but it gets stuck at "waiting for device".

What do I try next? :eek: