Database Users

[Q] Mounting and ADB Sideload Not Working in TWRP

Hi Everyone,
I've had some serious issues with the G2 since the night I got it. Basically I soft bricked it when I tried to load Cyanogen because it was a version for the 802 and I have the VS980. Now I've finally managed to get back into TWRP recovery, but I do not have a backup of the stock OS. I also am unable to mount the device to my computer to install a clean rom. (I've tried 3 computers, LG drivers, drivers from PDAnet, nothing works). ADB sideload also won't start inside TWRP and I can't get any adb commands to work. When I type adb devices it either shows nothing, or it lists the device as "host" and doesn't allow me to do anything.
Does anyone know any workarounds for these issues? I'm starting to run out of options. When I boot my phone I just get a loop to the screen that says "Secure boot failed." TWRP is the only thing I can get into, but if I can't push any files to the phone, it may as well be bricked. I also can't use the LG manufacture tool to take it back to stock because it doesn't recognize my device as the 980. The LG Mobile support tool also does not work - it just hangs when it attempts to download the firmware.
Would greatly appreciate any input!!

Flash CWM via TWRP. Has loki w/ OTG support. Plug OTG drive with backup on it. Flash. Worth a try.

Steamer86 said:
Flash CWM via TWRP. Has loki w/ OTG support. Plug OTG drive with backup on it. Flash. Worth a try.
Click to expand...
Click to collapse
There would be no way to flash CWM since it wasn't already on the device. Luckily I was able to fix this simply by wiping the whole phone, which wiped out the bad CyanogenMod info and let me factory reset with the LG flash tool.

Derp.... My fault lol. I keep backups of stock recovery and others. Shouldn't assume others do. Nice, odd you couldn't do it to begin with. I keep a virtual Windows XP for dealing with major phone bs like adb, qpst, lgnpst, ect. Just handles these things with more stability. LG Updater and LGNPST seems real finicky with the G2.

[HELP] Brick after flashing bootloader

So I was on AT&T d80020y stock ROM with TWRP installed via Autorec. I tried flashing Blisspop 3.5. For this, first I flashed bootstack-d800-LP_30d-loki-signed.zip downloaded from here and then reboot. That seems like a mistake because I entered on bootloop: LG logo for a sec and then screen is off.
Since I couldn't get either into recovery or download mode (I got the "secure booting error" message), I followed this guide and pushed the sbl1.img aboot.img, rpm.img, tz.img and TWRP 2.6.3.2 fom d800 10p (wich I downloaded from here). After this, I could get into recovery and restored a full nandroid of the d80020y I've made before everything. But still the phone won't boot and I can't go into download mode (same secure booting error).
Considering I'm practically a noob, I've run out of resources. What's the problem here? I could guess that the nandroid restore didn't fix the bootloader mess, but I'm not sure how to procceed. Should I install a d80020y bootloader? If so, the "wrong" LP bootstack also had a modem.img inside, should I flash the right one too? I'm going crazy on this...
Thanks people.
----- UPDATE -----
I was able to flash JB Bootloader (downloaded from here) via adb sideload. From here, I can enter download mode and should be able to flash stock ROM via KDZ/TOT. But this also made me thinking that maybe if I restore KK Bootloader, I could restore nandroid again and then the system will boot. Problem is that, when trying to adb sideload KK Bootloader, it seems something's different on Windows 8 drivers and adb devices doesn't show my phone. Actually, when I plug the phone beeing into TWRP recovery/download mode, device manager doesn't shows LG G2 device (screenshot attached, arrows on the 3 devices LG related).
I tried switching USB port (both 2.0 and 3.0), different LG Mobile Drivers versions and Universal ADB Drivers from here, (wich helped on the first adb sideload), but adb still doesn't recognize my phone. Any idea? I guess this is also a problem for flashing via KDZ, is it?

Just to understand, right now youre device fully working? without download mod? can you get recovery?

maozer said:
Just to understand, right now youre device fully working? without download mod? can you get recovery?
Click to expand...
Click to collapse
Device is not working. Still stuck on LG logo then black screen when booting, still get the "secure booting error" when download mode. I do get TWRP recovery (I guess that's because I pushed the image to the recovery partition).

http://blastagator.ddns.net/bootloader.php
try adb side load
download and flash jb bootstack and then u will be able to go to download mode then tot/kdz method with lg flash tool.

maozer said:
http://blastagator.ddns.net/bootloader.php
try adb side load
download and flash jb bootstack and then u will be able to go to download mode then tot/kdz method with lg flash tool.
Click to expand...
Click to collapse
Originally I was on KK, shouldn't I download KK 20y bootstack?
Also, it seems I can't get the device detected when running adb devices. Should I be in TWRP's adb sideload option? I've got ADB working now.
I don't want to mess things again, so I want to be sure. I should flash JB bootloader and then flash JB Stock ROM from KDZ? Won't it work with KK Stock ROM? (My phone came with KK already)

axel.lacapmesure said:
Originally I was on KK, shouldn't I download KK 20y bootstack?
Also, it seems I can't get the device detected when running adb devices. Should I be in TWRP's adb sideload option?
Click to expand...
Click to collapse
well, i had ur problem like 4 hours ago.. same certification error and that's what i did.. cant garuntee anything. it worked for my d800..
use this video like this guy with the bootstack
https://www.youtube.com/watch?v=Oo2cErfUSSE
good luck
---------- Post added at 03:46 PM ---------- Previous post was at 03:35 PM ----------
axel.lacapmesure said:
Originally I was on KK, shouldn't I download KK 20y bootstack?
Also, it seems I can't get the device detected when running adb devices. Should I be in TWRP's adb sideload option? I've got ADB working now.
I don't want to mess things again, so I want to be sure. I should flash JB bootloader and then flash JB Stock ROM from KDZ? Won't it work with KK Stock ROM? (My phone came with KK already)
Click to expand...
Click to collapse
well i couldnt manage to find kk kdz d800 rom so i just used tot file from here: http://storagecow.eu/index.php?dir=Xda/LG+G2/Stock/AT&T/

I would like to try sideload KK Bootstack, but can't get ADB working. I did sideload JB bootloader, but then I think Windows messed up with the drivers and now ADB doesn't recognize my phone. I resintalled LG drivers, also tried Universal ADB Drivers from here but command adb devices doesn't show up any devices.
Attach a screenshot of device manager when my phone is connected to the PC (spanish OS, but I think it's understandable). I mark the only devices that are LG related.
Any suggestions?

Please help, bricked lg g2

So I was planning to install the new cloudy g2 3.3 rom on my lg g2. To do this first, i was using a guide that first told me I would have to root with towel root. Which I did, and then I would have to install an auto recovery. My lg g2 is a Canadian d801. However I did not know that the auto recovery I would have to download was the d803 version. After installing the auto recovery my phone is stuck on fastboot mode. I cannot go into recovery or download mode. The screen says
fastboot mode started
udc_start()
when i plug it into my pc, it adds a couple more lines
reset
portcharge
I am stuck. I have found some other information which has told me
1. download autorec for your version
2. extract aboot - boot - laf
3.
fastboot flash aboot aboot.img
fastboot flash boot boot.img
fastboot flash laf laf.img
I have downloaded the d803 auto rec version, and extracted these 3 files. But my phone does not connect to adb. I am currently using the adb and fastboot minimal version, and when i type adb devices nothing shows up. It is important to note that I had installed adb after my phone became bricked like this. The only fix that I can do is to push these files onto my phone. However it does not connect to adb. I have downloaded and installed lg drivers for the lg g2 multiple times. I have gone to device manager and tried to set my up phone to use those drivers, but it does not let me. I will try to attach screen shots below. Please help me fix me phone. I think that if I can connect it to adb I can push the files onto it, but it wont connect. Any help would be much appreciated as I am very inexperienced in this area.

http://forum.xda-developers.com/showthread.php?t=2904404 try this ,see first page

LG Stylo 2 unable to be recognized in recovery

New to XDA so sorry if i posted this in the wrong place
But recently i received a new phone, an LG Stylo 2 Boost Mobile. It recognized fine while it was on through adb, but when i turned it off and booted into recovery, it wouldn't be recognized by adb, nor fastboot, and when i tried to "reboot into bootloader" it only restarted the whole phone into its normal boot. Adb sideload worked but i had no idea what files to try due to a locked bootloader and no stock ROMs found anywhere. I tried kingroot and it didn't have any ways to get an instant root. Im running Ubuntu and the phone is on 6.0.1 Marshmallow. Any ideas out there? I'd be sure to give them a try

The phone would only be accessible in recovery via the adb sideload option with stock recovery.
What exactly are you trying to accomplish?

es0tericcha0s said:
The phone would only be accessible in recovery via the adb sideload option with stock recovery.
What exactly are you trying to accomplish?
Click to expand...
Click to collapse
I'm trying to unlock the bootloader so i can flash a new recovery then root won't be hard to achieve, but when i try to access the phone in recovery mode, it doesn't recognize whatsoever. I thought there would be something i could do with sideload to somewhat downgrade the system and gain some type of bootloader, but that didn't work. Is there someway i can flash a custom recovery?

Don't believe there are any options for unlocking the bootloader or a custom recovery for that phone. According to what I could find in a quick search, there is root available but only on the software update ending in ZV3.
https://forum.xda-developers.com/lg-g-stylo/help/boost-mobile-lg-stylo-2-lgls775-t3388675

Alright, thanks for the info, wasn't sure if there was a way around it or not

HELP! Bricked LG G2 D802: Broken TWRP and unable to enter fastboot mode

Hello to all of you taking your time reading this. I have got into some problems with my LG G2 D802 recently. More precisely: I have bricked it and installed a broken recovery. HELP!
It all started with me wanting to upgrade my LG G2 to android Pie 9.0 with a custom rom. So I found an all in one tool to root and install TWRP on the phone (I probably never should have done that). I quickly realized that inside TWRP only the upper half of the screen was working somewhat close to normal, and the lower part was completely messed up. That made me unable to install the custom rom I had downloaded.
- - -
ADB and Fastboot
I tried to get rid of TWRP by using ADB and Fastboot to install the stock recovery back on my device. I wanted to use the command: “fastboot flash recovery recovery.img”. Though, before I even came that far, I had troubles getting my phone into fastboot mode. Whenever I executed the command: “adb reboot bootloader”, the phone just restarted and went back into TWRP. How can I enter fastboot?
This had been tried on multiple systems including Linux, Windows 7 and 10, with different USB drivers all removed completely between testing.
- - -
LG FlashTool (v. 1.8.6.527)
Then I went to try install a stock rom on my phone (which I had done once before with LG FlashTool). So I started the tool and put my phone into download mode. It got detected on COM41 and the flashing could start. I used the following files: LGD802_20130912_LGFLASHv160.dll and BIN_LGD802AT-00-V10b-SEA-XX-SEP-04-2013-32G+0.tot.
When LG FlashTool then reports: “CUST”, “Skip BackupGPT Partition.” and then “Waiting for reset 120 sec”, the phone reboots. . . - into TWRP. . . Sighs*. . .
I tried to shut it back down and enter download mode again while LG FlashTool was running. But after a while LG FlashTool just says: “FBOOT Check….“, then “FBOOT FAIL!!” and “Fail to get BOOT Complete Status. 00000064”
So is FBOOT = fastboot? If so, have I then messed something up with my fastboot then?
- - -
LG Flash Tool 2014
I also tried flashing with the kdz file called: Europe Open D80230b.kdz. But here my device didn’t even got detected by the tool. So I started searched for something else on the web, found nothing, and here I am.
I honestly don’t know what to do next. I know that one quick solution is to go and get a new phone. But that solution is expensive and what I really want, is to get my LG functioning again.
As I see it, the options for getting the phone back, is to fix either fastboot, TWRP(screen not working), LG Flash Tool 2014(if it not uses fastboot) or use this tool; SRK Tool 2.1. I just don't know how to proceed with any of this.
Any kind of help is highly appreciated. Thank you.