Database Users

[Q] LG G2 bricked and can't flash stock firmware!

So I'm really into Android developing, I'm always flashing and installing etc, but I got a problem now.
Phone information​
LG G2 D802
Rooted
TWRP Recovery 2.7.0.0
Was running 4.4.2, found a kdz file on the internet and flashed it (no regular update from my phone)
What happened​I actually did something stupid, I received an application update from the LG Download Center (or whatever it's called) on my phone and clicked on it. I was planning on flashing Android 4.4.2 again because my firmware was not stable, and I thought this update could help me.
But no, after it finished downloading, I automatically booted into recovery.
What I did​So I tried to reboot and enter my OS, but unfortunately, I was stuck in recovery.
I did everything I could, wiping (Dalvik) cache, factory reset, flashed a new rom, restored Nandroid backup, but no, every time I booted, I got back into recovery again.
I only saw 1 option left, booting into download mode and flashing a new firmware.
I found the Netherlands 16GB kdz file for Android 4.4.2 (because I had a French one first), the one I was looking for.
Looked all over the internet, and all guides pointed me to this guide.
Tried it, but I got multiple errors, one of them was that my phone was not connected while I was at 15% of the flash process.
What happened​After that first flashing process, I booted up, but got a Security Error. After the Security Error was showing for 5 seconds, my phone shut down. This is happening every time I try to boot up.
I couldn't access my recovery anymore, nothing. Edit: I can access my recovery right now, and I tried this, but when I boot up I get the Security Error again.
The big problem right now is the Security Error! How do I bypass that?
So can someone please help me out!
Several phones/tablets of mine bricked and I always found a way to get out of it, but not this time, unfortunately...

Have you tried this
Sent from LG-G2 D800 on AEONFLEX 4.4.2

XxZombiePikachu said:
Have you tried this
Sent from LG-G2 D800 on AEONFLEX 4.4.2
Click to expand...
Click to collapse
Yes, I actually have. Didn't mention it, but after I did that I booted and got an LG logo and below it was a text that said 'Security Error' After like 5 seconds the security error goes away and my phone shuts down. I can only enter download mode right now.
I'll edit my first post with this info.
Thanks for the help though!
Edit: I find a way to access my recovery again because at first I couldn't but I figured out that the code in the thread you linked was a bit different than the code I entered at first.
So I used the code you gave me, but now I get the Security Error again!

Hi mate, just like you i downloaded that damn OTA today and messed up my phone, but in my case was because i had totally forgotten it was rooted and had custom recovery installed :silly::silly::silly::silly:
I followed this tutorial to fix the boot secure error http://forum.xda-developers.com/showthread.php?t=2582142 and it worked like a charm except for download mode wasn't working at all.
After doing some research i found this post http://forums.androidcentral.com/ge...ricked-lg-g2-stuck-twrp-no-download-mode.html and got download mode (apparently) working again but Windows didn't recognize it at all so i couldn't use it to flash the .kdz stock firmware.
In the end i just flashed a custom aosp rom and got my phone back to life but the download mode issue it's still there and it's bothering me quite a lot.
Any suggestion is welcome.
EDIT: Don't download the recovery from the post, instead look for the latest version (2.7.0.0) because the one posted there (2.6.3.2) might corrupt your partitions

evilruck said:
Hi mate, just like you i downloaded that damn OTA today and messed up my phone, but in my case was because i had totally forgotten it was rooted and had custom recovery installed :silly::silly::silly::silly:
I followed this tutorial to fix the boot secure error http://forum.xda-developers.com/showthread.php?t=2582142 and it worked like a charm except for download mode wasn't working at all.
After doing some research i found this post http://forums.androidcentral.com/ge...ricked-lg-g2-stuck-twrp-no-download-mode.html and got download mode (apparently) working again but Windows didn't recognize it at all so i couldn't use it to flash the .kdz stock firmware.
In the end i just flashed a custom aosp rom and got my phone back to life but the download mode issue it's still there and it's bothering me quite a lot.
Any suggestion is welcome.
EDIT: Don't download the recovery from the post, instead look for the latest version (2.7.0.0) because the one posted there (2.6.3.2) might corrupt your partitions
Click to expand...
Click to collapse
Thanks! But does my internal storage get whiped? Will all my pictures etc. be gone?
And the first thred removes the security error right? And after that I can just boot into recovery mode (I can boot in recovery btw) and flash a new rom? Just wanted to know this so I don't go through all that trouble for nothing
Edit: You know I can enter both download and recovery mode right?

Ibrahim9999 said:
Thanks! But does my internal storage get whiped? Will all my pictures etc. be gone?
And the first thred removes the security error right? And after that I can just boot into recovery mode (I can boot in recovery btw) and flash a new rom? Just wanted to know this so I don't go through all that trouble for nothing
Edit: You know I can enter both download and recovery mode right?
Click to expand...
Click to collapse
Nope internal SD remains intact, basically what you'll be doing is pushing the right files into the system partitions and yes, in theory you should be able to flash a new rom.
Even if you can boot into recovery you should do it if you're getting that error, and after that you can just push a ROM file to flash (i'll assume you know how to do it) and btw let me know if you decide to flash a stock based rom instead of an aosp like i did.
Good luck with that :good:

evilruck said:
Nope internal SD remains intact, basically what you'll be doing is pushing the right files into the system partitions and yes, in theory you should be able to flash a new rom.
Even if you can boot into recovery you should do it if you're getting that error, and after that you can just push a ROM file to flash (i'll assume you know how to do it) and btw let me know if you decide to flash a stock based rom instead of an aosp like i did.
Good luck with that :good:
Click to expand...
Click to collapse
Thanks man! I'm probably going to save money because of you, awesome!

Ibrahim9999 said:
Thanks man! I'm probably going to save money because of you, awesome!
Click to expand...
Click to collapse
I hope so!
Let me know if you fix the thing :laugh:

evilruck said:
I hope so!
Let me know if you fix the thing :laugh:
Click to expand...
Click to collapse
I just managed to fix it! Thank you so much man!

Can someone help me plz I got flashily got CWM instead of the TWRP and got and lg update it updated and now it's stuck in recovery mode it won't go into download mode it only goes to recovery mode and my computer won't recognize my phone so if any one knows how to fix it can you plz help me out

my pc don't recognize the lg g2 in download mode!
i installed the drivers and the USB is connected but the pc don;t even say that the device is connected . and nothing in device manager at all

Perhaps you might consider sending it in to lg if you still have warranty. But I'd you don't, there are services on eBay/ Craigslist that can help you.
Sent from my LG-D800 using XDA Free mobile app

[Q] Bricked LG G2?? D-801 ( WIND ) HELPPP

Ok, hey guys, got myself in a really deep hole here i believe..
So i tried to install a recovery threw KK Rec file, must have installed the wrong one...
After the app rebooted the phone it went to the exact screen shown in the pic ...
now how can i get this phone working???, fastboot commands all work...
ive flashed a recovery but cant boot into it as the phone wont power off...
if anyone has any ideas , im open to all...
i do have the LG Flash tool available and a Custom ROM on hand
I do not have a stock file ..
Phone is rooted
Thanks for help , anything is great
Update ..
tried to flash a ROM as an Update.zip, get error back
also now get that screen when i hold all buttons down , not sure, never got that before

Shotgun4 said:
So i tried to install a recovery threw KK Rec file, must have installed the wrong one...
Click to expand...
Click to collapse
I did the exact same thing because the ****ing jokers at LG / Wind labeled the phone wrong.
It's actually a D803. Yeah, despite what it says on the case.
You can find my solution in my post history here.. You need to flash a .laf file with fastboot to get your download mode re-enabled, then you can apply a stock .kdz file to bring your phone back to stock.
Then use the D803 files and no worries! You can fix this.
If you're scared, I can also recommend a respectable shop in Toronto that can fix it easy.

D802 bricked?

Hey guys, i dont know if its bricked or not, but i have download mode and recovery, i am on stock, but ... my modem is unknown, and after several kdz upgrade stills so .. could it be that my partitions are wrong? i rooted and changed recovery, and my recovery is not properly functional ... sometimes looking via explorer I see the "0" folders but should they dont be removed by turning back to stock via lg support tool?
Thanks for help!
Greetings

vyrus973 said:
Hey guys, i dont know if its bricked or not, but i have download mode and recovery, i am on stock, but ... my modem is unknown, and after several kdz upgrade stills so .. could it be that my partitions are wrong? i rooted and changed recovery, and my recovery is not properly functional ... sometimes looking via explorer I see the "0" folders but should they dont be removed by turning back to stock via lg support tool?
Thanks for help!
Greetings
Click to expand...
Click to collapse
now it works, damn wtf asigjkalö but what have i to do now? Root does not work so i cant do a full recovery

vyrus973 said:
now it works, damn wtf asigjkalö but what have i to do now? Root does not work so i cant do a full recovery
Click to expand...
Click to collapse
still totally buggy .. any ideas please? How much would it cost to reset the chip at a LG centre? g
ty

@vyrus973 dont use lg flashtool now, read the go back to stock guide and flash your phone with .tot or kdz again, root the phone, install recovery and if your modem is still unknownnyou flash it from this forum.

wulsic said:
@vyrus973 dont use lg flashtool now, read the go back to stock guide and flash your phone with .tot or kdz again, root the phone, install recovery and if your modem is still unknownnyou flash it from this forum.
Click to expand...
Click to collapse
flashed with kdz to 4.2.2, rooted, flashed recovery, flashed baseband, still buggy ... now i did the same and toggled the ROOTED status from download mode and i upgrade to the latest, so maybe I can say to LG centre that after ota bricked, its in warranty, or should i do something else?
greets

@vyrus973 so whats now buggy then? The 0 folder is actually not a big deal, I had it also from custom roms. Is the modem still unknown? Could your efs partition maybe bad?
If its really an hardware issue non fixable then I would send it to LG if its not your fault. But if its an easy to fix software issue then I would try to fix it myself.
Could you explain more about your issue.

wulsic said:
@vyrus973 so whats now buggy then? The 0 folder is actually not a big deal, I had it also from custom roms. Is the modem still unknown? Could your efs partition maybe bad?
If its really an hardware issue non fixable then I would send it to LG if its not your fault. But if its an easy to fix software issue then I would try to fix it myself.
Could you explain more about your issue.
Click to expand...
Click to collapse
i just played on my efs backup 1 week ago, but did anything, is there any other method to fix it?
greets

wulsic said:
@vyrus973 so whats now buggy then? The 0 folder is actually not a big deal, I had it also from custom roms. Is the modem still unknown? Could your efs partition maybe bad?
If its really an hardware issue non fixable then I would send it to LG if its not your fault. But if its an easy to fix software issue then I would try to fix it myself.
Could you explain more about your issue.
Click to expand...
Click to collapse
i just played on my efs backup 1 week ago, but did anything, is there any other method to fix it?
the bug is that he dont start the service, he does not even try to read my sim card, still no connection, and he self restarts like a loop, so i cant even use it really long time, sometimes he gets connection but even than with really bad signal, when i put on fly mode and return back he does not connect more, even the data connectivity than does not work, since i flashed the optimus v3 rom, i tried each kdz for my phone but no one did really fix it, sometimes at the first runtime it function and than after restart still buggy aaaaa its make me crazy, actually i am using a 6inches big china phone and that cant be a permanent solution.
greets

@vyrus973 so you still have the backup? If so then you can try to restore it. You can also google about g2 efs recovery to restore it but I am not sure if it is possible. I think that your efs partition is corrupted or got removed.

wulsic said:
@vyrus973 so you still have the backup? If so then you can try to restore it. You can also google about g2 efs recovery to restore it but I am not sure if it is possible. I think that your efs partition is corrupted or got removed.
Click to expand...
Click to collapse
i restored it many times, i backuped it on 4.2.2 and on 4.4.2 but anyone does properly function, i went in the assistent center and they are going to sent it to labor, at the end i restored all, i hope that they cant see that i played with the root/bootloader, in download mode is written UNROOTED, hopes thats all ahah, in 7 days I update
greets

@vyrus973 ahh okay, if you flashed back to stock and removed root temper flag then you should be okay. If you live in europe then it didnt matter that you had rooted your phone I thought. But your download mode said unrooted so the temper flag got resetted.
Goodluck with your phone and have fun with it, dont brick it

wulsic said:
@vyrus973 ahh okay, if you flashed back to stock and removed root temper flag then you should be okay. If you live in europe then it didnt matter that you had rooted your phone I thought. But your download mode said unrooted so the temper flag got resetted.
Goodluck with your phone and have fun with it, dont brick it
Click to expand...
Click to collapse
ahahah i were not happy with the g2, nice design but mhhh don´t know ... i think after i´ll sell it, and yes i live in italy so ehehe *finger crossing* hope it will go all right ahah at the end i dont think they have to repair hardware, just plug it in their universal computer and flash all again, at the worst case they have to open it and flash on board yey

TWRP failed to install

very frustrated
nothing seems to work...
i rooted my LG g2 D801
with the all in one toolkit
i can use ADB and communicate with the
phone
so i followed this
http://forum.xda-developers.com/showthread.php?t=2449670
used option 2
file were pushed and all seems ok
so i use quick boot app to reboot in to recovery
and i get
black screen with small white fonts on top left that says
Secure boot error
cause : boot certification error.
then
white screen with black characters
Critical error
------------------------
DemiGod crash handler : Critical Error!
press key to choose dload mode or reboot.
1) volume up : dload mode
2) volume down : reboot
if you choose dload mode ,
please do following action .
1) dload mode , connect usb
2) get the ram dump image using QPST configuration
------------------------------------------
Same thing if i use flashify
to try install the TWRP.IMG
that i Downloaded or downloaded from flashify
besides
i cant use AutoRec as the screen dont respond to the touchscreen
i followed intruction to downgrade super Su to 2.46 but still
touchscreen dont work on Autorec...
this is not easy as it seems...
can some one help please
i am so depressed about this
Max.
UPDATE....
since i am on LP looks like i need the hybrid bootstack
from DanielStuart
so you need a 4.4 kit kat stack in order to load TWRP
?? Right ?
thing is how to flash the .zip file i just downloaded from the DanielS site for the D801

Tou should have used autorec
Sent from my LG-LS980 using Tapatalk

devil ££ sama said:
Tou should have used autorec
Sent from my LG-LS980 using Tapatalk
Click to expand...
Click to collapse
I tried autorec
but the damn thing dont response to keypress on the screen

maxolini said:
I tried autorec
but the damn thing dont response to keypress on the screen
Click to expand...
Click to collapse
Also
i tried to boot in to bootloader mode to use fastboot
to push the TWRP.img in
and... nothing
when i use the command
adb reboot bootloader
i just reboots my phone normally into home screen

maxolini said:
very frustrated
nothing seems to work...
i rooted my LG g2 D801
with the all in one toolkit
i can use ADB and communicate with the
phone
so i followed this
http://forum.xda-developers.com/showthread.php?t=2449670
used option 2
file were pushed and all seems ok
so i use quick boot app to reboot in to recovery
and i get
black screen with small white fonts on top left that says
Secure boot error
cause : boot certification error.
then
white screen with black characters
Critical error
------------------------
DemiGod crash handler : Critical Error!
press key to choose dload mode or reboot.
1) volume up : dload mode
2) volume down : reboot
if you choose dload mode ,
please do following action .
1) dload mode , connect usb
2) get the ram dump image using QPST configuration
------------------------------------------
Same thing if i use flashify
to try install the TWRP.IMG
that i Downloaded or downloaded from flashify
besides
i cant use AutoRec as the screen dont respond to the touchscreen
i followed intruction to downgrade super Su to 2.46 but still
touchscreen dont work on Autorec...
this is not easy as it seems...
can some one help please
i am so depressed about this
Max.
UPDATE....
since i am on LP looks like i need the hybrid bootstack
from DanielStuart
so you need a 4.4 kit kat stack in order to load TWRP
?? Right ?
thing is how to flash the .zip file i just downloaded from the DanielS site for the D801
Click to expand...
Click to collapse
i think you dont need anyhting if on KK but you could try this bootstacks
http://forum.xda-developers.com/lg-g2/development/lg-g2-bootstacks-t3173715
theres autorec for KK and autorec for lollipop di you use the correct one?

raptorddd said:
i think you dont need anyhting if on KK but you could try this bootstacks
http://forum.xda-developers.com/lg-g2/development/lg-g2-bootstacks-t3173715
theres autorec for KK and autorec for lollipop di you use the correct one?
Click to expand...
Click to collapse
Hi! i recently got a LG G2 D800 AT&T model and immediately rooted it with stump root...but after that while flashing recovery i tried to use auto rec but it didnt work for me...so i tried TWRP manager and installed twrp its says recovery flashed succesfully. But whenever i boot in to recovery it shows the LG logo and in the top left corner it says secure boot error in white text can you please help me with this? im really stuck and dont know what to do as i want to flash cm13. thanks.

rohan1310 said:
Hi! i recently got a LG G2 D800 AT&T model and immediately rooted it with stump root...but after that while flashing recovery i tried to use auto rec but it didnt work for me...so i tried TWRP manager and installed twrp its says recovery flashed succesfully. But whenever i boot in to recovery it shows the LG logo and in the top left corner it says secure boot error in white text can you please help me with this? im really stuck and dont know what to do as i want to flash cm13. thanks.
Click to expand...
Click to collapse
i would suggest to go back to stock and start from scratch othe wise youll end up with hard brick..
follow this for d800.
http://forum.xda-developers.com/showpost.php?p=65643825&postcount=4

maxolini said:
i cant use AutoRec as the screen dont respond to the touchscreen
Click to expand...
Click to collapse
Autorec is damn slow and has no progress bar. While its gathering device infos it won't ever respond. Be patient and when Autorec finished gathering it will work. Good luck!

raptorddd said:
i would suggest to go back to stock and start from scratch othe wise youll end up with hard brick..
follow this for d800.
http://forum.xda-developers.com/showpost.php?p=65643825&postcount=4
Click to expand...
Click to collapse
Yes sir... Followed the same flashed back to stock using lg flash tools and then repeated the process and voila I'm now running on cyanogenmod 13 snapshot build....Thanks a lot..btw if you're on cm13 have you tested out the latest nightly....is it better and bug free or should i keep using the snapshot build....its very smooth but i just find the battery consumption to be a bit high.. Anyways thanks a lot for your help...

rohan1310 said:
Yes sir... Followed the same flashed back to stock using lg flash tools and then repeated the process and voila I'm now running on cyanogenmod 13 snapshot build....Thanks a lot..btw if you're on cm13 have you tested out the latest nightly....is it better and bug free or should i keep using the snapshot build....its very smooth but i just find the battery consumption to be a bit high.. Anyways thanks a lot for your help...
Click to expand...
Click to collapse
just hit the thanks button..:good:
good that you are all set up.. i not on cm am on stock rom..
so i have no idea... i have flashed blisspop and liquid dark.. but uninstalled next day it gave erros. like not booting. and bisspop. when i tried 5.1.1 volume was so low. i think they fixed it now.

Jan Philipp said:
Autorec is damn slow and has no progress bar. While its gathering device infos it won't ever respond. Be patient and when Autorec finished gathering it will work. Good luck!
Click to expand...
Click to collapse
I get the pop ups that says finished gathering information and backup complete
still i waited 5 minutes ( lol... yess too long.. but just to make sure )
and press the screen... NOTHING!!!!
so i will think will flask stock
but KK
right ?
i already downloaded d801v20g00.kdz
and im now that one stock
BTW,
a friend of mine just got a NEXUS 5 and the camera sux
very grainy in marginal light, suppose to be very similar to the G2 but no!
G2 is way better camera
also i have read somehwere that you can install another camera package from the G3 or G4
if i an not mistaken and that is better than the stock G2 camera
The better the algorithms to render a JPG from the RAW DATA of the chip camera sensor
the best the pic looks
is XCAM the one ?
Well, im back to stock d801v20g
i am planning to install Cloudy v3 or CM13
any recomendation ?
i heard XCAM only work with stocks
so... tough decisions

maxolini said:
I get the pop ups that says finished gathering information and backup complete
still i waited 5 minutes ( lol... yess too long.. but just to make sure )
and press the screen... NOTHING!!!!
so i will think will flask stock
but KK
right ?
i already downloaded d801v20g00.kdz
and im now that one stock
BTW,
a friend of mine just got a NEXUS 5 and the camera sux
very grainy in marginal light, suppose to be very similar to the G2 but no!
G2 is way better camera
also i have read somehwere that you can install another camera package from the G3 or G4
if i an not mistaken and that is better than the stock G2 camera
The better the algorithms to render a JPG from the RAW DATA of the chip camera sensor
the best the pic looks
is XCAM the one ?
Well, im back to stock d801v20g
i am planning to install Cloudy v3 or CM13
any recomendation ?
i heard XCAM only work with stocks
so... tough decisions
Click to expand...
Click to collapse
for camera use xcam.. only works on stock or roms based on stock no aosp or cm...
for raw use freedcam..
for rom i recommend icex rom.. its stock..

Hard bricked,only vibrates

Hello guys,i was trying to flash LOS and after many tries i hard bricked my phone.At start,screen wasnt turning on and phone vibrated sholtly every 1 sec.I did EDL and then flashed different roms but still phone just vibrates but for a bit longer.When i do EDL it gets recognised by pc.Also when i flash a rom before i try to boot,if i connect it to power the led is blinking.
I dont want to be this guy who opens a thread that has opened many times,but i couldnt figure out a solution whatsoever.Thanks in advance.

Did you try downgrade from pie to oreo? Can you enter fastboot mode?
I bricked my phone too. Nothing worked for me. I hope you have more luck.

How it got bricked? Did you read the whole tutorial ?

emiljano539 said:
How it got bricked? Did you read the whole tutorial ?
Click to expand...
Click to collapse
I tried to flash from a video in youtube and didnt work.My system was deleted so i tried flashing different roms,it let me flash stock android and when i rebooted it just vibrated.Looks like the first vibration is the same as when the phone boots and the rest are a bit longer.

degen1997 said:
I tried to flash from a video in youtube and didnt work.My system was deleted so i tried flashing different roms,it let me flash stock android and when i rebooted it just vibrated.Looks like the first vibration is the same as when the phone boots and the rest are a bit longer.
Click to expand...
Click to collapse
Does it let you to boot into twrp now? If yes try to flash the stock rom via twrp there is a version which you flash directly with twrp

emiljano539 said:
Does it let you to boot into twrp now? If yes try to flash the stock rom via twrp there is a version which you flash directly with twrp
Click to expand...
Click to collapse
Sadly it doesnt,i can flash roms though with edl mode and miflash,maybe i haven't tried the correct one yet?Do you know which rom i need to flash for stock android 7 with mi flash?I've seen that other people have had the same problem but dont know if anyone managed to get through it.

degen1997 said:
Sadly it doesnt,i can flash roms though with edl mode and miflash,maybe i haven't tried the correct one yet?Do you know which rom i need to flash for stock android 7 with mi flash?I've seen that other people have had the same problem but dont know if anyone managed to get through it.
Click to expand...
Click to collapse
Check it :https://forum.xda-developers.com/showpost.php?p=75711835&postcount=2
I hope it helps

degen1997 said:
Sadly it doesnt,i can flash roms though with edl mode and miflash,maybe i haven't tried the correct one yet?Do you know which rom i need to flash for stock android 7 with mi flash?I've seen that other people have had the same problem but dont know if anyone managed to get through it.
Click to expand...
Click to collapse
I was one of them. I was lucky though and got a new phone from the dealer. I followed all the threads with the same issue. Never saw one user who was able to solve it.

XtraWater said:
I was one of them. I was lucky though and got a new phone from the dealer. I followed all the threads with the same issue. Never saw one user who was able to solve it.
Click to expand...
Click to collapse
I was thinking about flashing a Rom because im in stock now only rooted... But you guys scared me

emiljano539 said:
I was thinking about flashing a Rom because im in stock now only rooted... But you guys scared me
Click to expand...
Click to collapse
I recommend you to read a lot about flashing custom ROMs before trying to do it.
LineageOS has a pretty explicit installing tutorial.

If you can get into fastboot mode there is hope.
Remember that you must have the bootloader unlocked.

my thread
emiljano539 said:
How it got bricked? Did you read the whole tutorial ?
Click to expand...
Click to collapse
Hi everyone, I have rooted Mi A1 (pie), I have a hard brick. but fixed, when flashing Rom with TWRP, my phone cannot receive the partition / 'cache', when root receives the message: error: 28, I need help, thank you very much