Bootloop from editing build.prop - G4 Q&A, Help & Troubleshooting

Hi guys,
I'm worried I really effed up as I've never been stuck in a bootloop before on any of my devices.
I was editing the build.prop to add dual window functionality to all of my apps as per this video https://www.youtube.com/watch?v=Z4X2FF3BwjA&index=35&list=WL
And now my phone is stuck in a bootloop. I keep getting a message saying that Android is updating app X out of 38 and it goes back to the LG splash screen.
Sure enough there's a warning at beginning of that youtube video saying BE SURE THAT BUILD.PROP IS NOT TRUNCATED AND ITS PERMISSIONS ARE RIGHT BEFORE REBOOTING! - I'm assuming this is where I've gone wrong.
I'm using a Canadian version of the phone LG-H812 for Bell. Do I have to return the phone to stock to get out of this? How do I go about doing so?
Help!
I should also note that I don't have a custom recovery installed - I wasn't able to get twrp to work.

I've tried using the dd code to send the stock image to the phone but that hasn't worked since all of my setting/files have been kept in place.
I figure I've just lost root access at this point.
So, still stuck in a bootloop.

Have you tried looking in this thread to see if this helps.
http://forum.xda-developers.com/showthread.php?p=62083159

Beandip-Javier said:
Have you tried looking in this thread to see if this helps.
http://forum.xda-developers.com/showthread.php?p=62083159
Click to expand...
Click to collapse
Thanks!
That might have worked - but my phone is not being detected by adb...? It's says it's offline. Is that a bad sign?
Windows certainly detects it as it makes the usb notification sound.
EDIT - Crap, does this mean my phone is bricked?? I wouldn't think so since it goes into download mode and whatnot.

Did you try to use the LG Flash Tool to flash a "kdz" file?
You have to download the right "kdz" for your phone.

Related

is this **** bricked??

its just sitting on the freaking LG screen... every time i vol dwn + pwr and double press power it goes normal but then cwm doesn't come up and it just restarts and hangs at LG again. i ****ing hate this phone can someone please help me out? why won't cwm load
can you describe exactly the process you took to port CWM into your phone? Let's see if something happened along the way to cause it to not work properly.
Also, is CWM the one not working, or did you flash a ROM on your phone and something went wrong, and you are trying to get to CWM to restore your phone but not getting anywhere with it?
aquariuz23 said:
can you describe exactly the process you took to port CWM into your phone? Let's see if something happened along the way to cause it to not work properly.
Also, is CWM the one not working, or did you flash a ROM on your phone and something went wrong, and you are trying to get to CWM to restore your phone but not getting anywhere with it?
Click to expand...
Click to collapse
followed the steps on the cwm thread. used terminal emulator. worked great. was working fine until now. i flashed kernels beta 2 and only wiped cache and dalvik and now nothing is working. no cwm to restore, can't even get to the at&t boot animation. this is a mystery.
mic.mayorga said:
followed the steps on the cwm thread. used terminal emulator. worked great. was working fine until now. i flashed kernels beta 2 and only wiped cache and dalvik and now nothing is working. no cwm to restore, can't even get to the at&t boot animation. this is a mystery.
Click to expand...
Click to collapse
Sorry to hear that. Unfortunately I can't help much at all since I haven't done either yet (CWM or Kernels/rom installations) so rather than making things worse for you, I'll leave it to the Pros here to help you. Im sure one of them will respond back soon enough.
Try this:
Disconnect the phone and pull out the battery.
Put battery back in and plug phone to a wall charger. Let it boot to the battery charging screen. Once there press and hold POWER + VOLDOWN
Depends on type of the problem, it helped me 9 out 10 times...
tried it at least 20 times now. just realized that i didn't format /system nor did i update cwm yesterday. probably the root of all these problems. I'm just gonna start fresh with the kdz. I'm on a mac though so its going to be a long night starting with boot camp.
I'm having the same problems...well kind of...
I followed all the instructions for CWM and everything went great. No real issues but had to reinstall the .img twice and then was perfect thereafter. Saw the beta 2 ROM and figured what the hey...downloaded and installed to SD Card. Used CWM/Nandroid to do a backup then installed the zip for the ROM from the sd card.
It took a matter of 10 seconds and said it was successful/done and restarted phone-got a boot loop on LG screen for about 15 minutes and finally did a battery pull-tried several times to get it into CWM with no luck and finally was able to get in-but had to plug it into the wall and wait for charging screen to show. Was able to restore and all was well until turning the phone off.
Turning off the phone now causes the phone to loop on the ATT screen-I can get into download mode and can get into CWM and restore and all is well until turning phone off.
I figured it just needs a fresh install so I've been trying to flash the kdz but the firmware updater keeps faulting and never makes it through the process...so I'm stuck...have all the files I need (I believe) and have everything in place...just can't get it back to normal.
Any ideas from here?
Thanks in advance!
Yeah, sometimes it could be quicker just start over and restore backups...
While you there, would you mind do this: Needed SystemUI.apk from SU640
[EDIT]
@fishscale28:
did you do kdz unbrick before? If not, then perhaps you are not doing it right...btw, kdz file for LU6200 didn't work for me.
Nope-never done a kdz unbrick before-I have the kdz v10i_00 for the 640. I have all the drivers installed, the parser deal installed, windows enabler program running and use the kdz updater to update the firmware. Is there something Im missing here? Seems like several people have gotten the updater to crash when trying to update the firmware...any ideas why?
---------- Post added at 05:51 AM ---------- Previous post was at 05:38 AM ----------
I went through a few of the threads and saw there was a .dll file to be deleted in the updater folders so I did that and now I can do absolutely nothing with the program. Only start and exit...am unable to select anything, view anything, get anything to function...
fishscale28 said:
Nope-never done a kdz unbrick before-I have the kdz v10i_00 for the 640. I have all the drivers installed, the parser deal installed, windows enabler program running and use the kdz updater to update the firmware. Is there something Im missing here? Seems like several people have gotten the updater to crash when trying to update the firmware...any ideas why?
---------- Post added at 05:51 AM ---------- Previous post was at 05:38 AM ----------
I went through a few of the threads and saw there was a .dll file to be deleted in the updater folders so I did that and now I can do absolutely nothing with the program. Only start and exit...am unable to select anything, view anything, get anything to function...
Click to expand...
Click to collapse
I installed from the kdz yesterday and didn't have to delete any files. I'm on Win 7 x64. The first time it ran it told me to restart my phone cause it didn't see it, but the second time it ran until my phone reboot and I killed the program. Be sure you have the KDZ_FW_UPD_EN with UpTestEX_mod2_marwin.exe in it. Hope this helps.
Thanks for your help. I did all that...again...I even deleted, reinstalled all the updater stuff, tried running as admin, tried running in compatibility mode, ran it after deleting the recommended .dll file and the option to do anything was gone, put it back in and was able to run everything fine and a little after extracting the kdz it would crash. I unplugged the phone and re-ran the proggy and it went through the check, noticed the phone wasn't hooked up and finished the check. Plug phone in, start process over and proggy crashes.
I don't get it-I would say its the wrong kdz but its not. I installed all the drivers and it still doesn't work. I've tried every combo of everything and the proggies keep crashing.
Now I was finally able to get into CWM to flash another ROM and was able to get one going-was able to boot into the os but same as before-once the phone is turned off it starts the boot loop. Now its even harder to get back to CWM but a restore works from there. Any ideas on why the boot image keeps reverting back to whatever was screwed up? Has to be something that happens once the system starts up again as it's after a restore and when the phone is turned off. Stumped and would love to be able to use my phone...It seems like flashing the kdz would be the sure fire way to get it done-are there options aside from the updaters that keep crashing?
Thanks in advance!
Maybe http://www.microsoft.com/windows/virtual-pc/ can help?
alright so i got to the 4% thing and my phone rebooted but it kept looping to the screen LG Optimus LTE bootscreen with the pink candy cane. thats it. i did vol dwn + pwr and got the android arrow and box with loading bar no text, then it rebooted back to the optimus lte screen. never got to the setup screen. tried the kdz again and my phone died. now when i plug it in i only get download mode... does it charge in download mode and why did it not get to the setup screen?!
fishscale28 said:
Thanks for your help. I did all that...again...I even deleted, reinstalled all the updater stuff, tried running as admin, tried running in compatibility mode, ran it after deleting the recommended .dll file and the option to do anything was gone, put it back in and was able to run everything fine and a little after extracting the kdz it would crash. I unplugged the phone and re-ran the proggy and it went through the check, noticed the phone wasn't hooked up and finished the check. Plug phone in, start process over and proggy crashes.
I don't get it-I would say its the wrong kdz but its not. I installed all the drivers and it still doesn't work. I've tried every combo of everything and the proggies keep crashing.
Now I was finally able to get into CWM to flash another ROM and was able to get one going-was able to boot into the os but same as before-once the phone is turned off it starts the boot loop. Now its even harder to get back to CWM but a restore works from there. Any ideas on why the boot image keeps reverting back to whatever was screwed up? Has to be something that happens once the system starts up again as it's after a restore and when the phone is turned off. Stumped and would love to be able to use my phone...It seems like flashing the kdz would be the sure fire way to get it done-are there options aside from the updaters that keep crashing?
Thanks in advance!
Click to expand...
Click to collapse
Even after running the kdz, my phone still does that after installing CWM. I don't know if it's something with my ROM or something with CWM, but if you can't get into CWM you probably don't need to run the kdz. I couldn't get into CWM anymore when I ran it.
So you're saying you go into the boot loop after turning off your phone even after unbricking?
I don't get it-now I can't get into recovery and it keeps up with the boot loop. I've tried running on the virtual PC/XP deal and it doesn't crash but now it doesn't even see the phone...reinstalled all the drivers, etc. and still no luck. Is there anyway to get the kdz installed without this updater?
fishscale28 said:
So you're saying you go into the boot loop after turning off your phone even after unbricking?
Click to expand...
Click to collapse
Yes. I don't think that was happening until I put CWM on. But I can live with it until the issue is solved. I don't think I'm the only one having it.

Secure Booting Error! Cause: boot certification verify

Hello all,
LG Optimus G Pro user here (LG-F240S). I recently rooted my phone, then used Gomdol's tool, which roots the phone and installs CWM recovery at the same time. I had initially thought that the application also unlocks the bootloader, but since then found out it doesn't.
Anyways, the first time rebooted into recovery, I flashed a ROM (specifically for F240S), which wasn't successful for some reason. Now, when I boot up the phone, it keeps saying "Secure Booting Error! Cause: boot certification verify"
I have tried everything, from the Volume down + Power + Home to erase everything and do the factory reset, but it doesn't work. I have also downloaded the stock firmware, and tried the KDZ_FW_UPD application to flash the stock firmware, which also did not work (Extract File Error). My last resort was using LGMobile Support Tool, but it keeps telling me to recharge my battery (my batter is currently recharged to 100%, and the USB is plugged in, so something is very wrong here).
I would really appreciate any help, It's been 3 days now without being able to use my phone and it sucks
Thanks!
J
Might wanna try this
ca12bon said:
Hello all,
LG Optimus G Pro user here (LG-F240S). I recently rooted my phone, then used Gomdol's tool, which roots the phone and installs CWM recovery at the same time. I had initially thought that the application also unlocks the bootloader, but since then found out it doesn't.
Anyways, the first time rebooted into recovery, I flashed a ROM (specifically for F240S), which wasn't successful for some reason. Now, when I boot up the phone, it keeps saying "Secure Booting Error! Cause: boot certification verify"
I have tried everything, from the Volume down + Power + Home to erase everything and do the factory reset, but it doesn't work. I have also downloaded the stock firmware, and tried the KDZ_FW_UPD application to flash the stock firmware, which also did not work (Extract File Error). My last resort was using LGMobile Support Tool, but it keeps telling me to recharge my battery (my batter is currently recharged to 100%, and the USB is plugged in, so something is very wrong here).
I would really appreciate any help, It's been 3 days now without being able to use my phone and it sucks
Thanks!
J
Click to expand...
Click to collapse
Hey mine did this i used the instruction in the thread below but i had the e980 so you might have to get your stock files but worth a try?
http://forum.xda-developers.com/showthread.php?t=2302660
Simply follow this method
http://forum.xda-developers.com/showthread.php?t=2396048
Hey man, I'm in the same boat, but I have the E988. What did you end up doing?
any idea?????
tase25 said:
Hey man, I'm in the same boat, but I have the E988. What did you end up doing?
Click to expand...
Click to collapse
i have the same problem here!! E975 when i dot the classic staff for custom rom i go to recovery i i see this in to my phone....boot certification verify
stock rom 4.4.2kk....what i mast do guys plz help
ca12bon said:
Hello all,
LG Optimus G Pro user here (LG-F240S). I recently rooted my phone, then used Gomdol's tool, which roots the phone and installs CWM recovery at the same time. I had initially thought that the application also unlocks the bootloader, but since then found out it doesn't.
Anyways, the first time rebooted into recovery, I flashed a ROM (specifically for F240S), which wasn't successful for some reason. Now, when I boot up the phone, it keeps saying "Secure Booting Error! Cause: boot certification verify"
I have tried everything, from the Volume down + Power + Home to erase everything and do the factory reset, but it doesn't work. I have also downloaded the stock firmware, and tried the KDZ_FW_UPD application to flash the stock firmware, which also did not work (Extract File Error). My last resort was using LGMobile Support Tool, but it keeps telling me to recharge my battery (my batter is currently recharged to 100%, and the USB is plugged in, so something is very wrong here).
F240S user here bro. I feel you
I would really appreciate any help, It's been 3 days now without being able to use my phone and it sucks
Thanks!
J
Click to expand...
Click to collapse
on your boot certification problem, I had that same problem before and made me panic for two days. I tried LG mobile support tool and worked for the first time. few weeks ago, I also encountered the same error on LG Mobile support tool (battery error,right?) I used I also used the KDZ_FW_UPD application and yes, extract error. but you know what the magical thing is? I found the G2 KDZ flasher from the G2 thread..
even if this was from G2 thread, it worked for my device.
here is the link and of course thanks to @hyelton for bringing this wonderful fix. now, I don't have to worry about bricking my phone again(except for hard bricking, of course).
http://forum.xda-developers.com/showthread.php?t=2432476
one more thing: make sure you download the KDZ. there is a thread here that links to that. but I think you have the right kdz now so just follow the steps. make sure you are in download mode press volume up and down (only the volume up and down. not the home or power) and then plug the cord.
guys, this happens when installing custom rom with lg stock rom in it and your device is not fully unlock. to lessen the hassle of worrying trying to reflash to the stock rom and downloading those huge files..just download any custom pure android rom , slimkat, cm11, etc then flash to your recovery..it would boot again without that error on boot certification. only that your on pure android rom but that's ok
nuvkyl20 said:
guys, this happens when installing custom rom with lg stock rom in it and your device is not fully unlock. to lessen the hassle of worrying trying to reflash to the stock rom and downloading those huge files..just download any custom pure android rom , slimkat, cm11, etc then flash to your recovery..it would boot again without that error on boot certification. only that your on pure android rom but that's ok
Click to expand...
Click to collapse
How do i flash the rom when i cant get into recovery? I have the same issue om my rooted g pad whit stockrom. I want to flash cyagenmod.
HELP PLEASE! My Lg G Pro e988 stays forever on this "Secure booting error! Cause: boot certification verify! Can't get in download mode. I have tryed all sort of combination keys but everytime this error pops up. My phone was on stock rom, then an official update started to download and ask me to reboot. After reboot this error!
HELP!
You should be able to get in download mode by following these steps. First take out the battery for atleast 5seconds, put it back in, then press and hold both vol + and vol - and within 2seconds plug in the usb cable, your computer should make the sound of a new device connected, when you hear that let go of the volume keys. The screen should say download mode now.
Sent from my LG-E980 using XDA Free mobile app
ivoh95 said:
You should be able to get in download mode by following these steps. First take out the battery for atleast 5seconds, put it back in, then press and hold both vol + and vol - and within 2seconds plug in the usb cable, your computer should make the sound of a new device connected, when you hear that let go of the volume keys. The screen should say download mode now.
Sent from my LG-E980 using XDA Free mobile app
Click to expand...
Click to collapse
It doesn't work! I did exactly what you say. No sound on pc, just that error on phone screen and no download mode
What should I do?
Thanks
Try booting into recovery, hold power and vol -. Or try power and vol +
Sent from my LG-E980 using XDA Free mobile app
ivoh95 said:
Try booting into recovery, hold power and vol -. Or try power and vol +
Sent from my LG-E980 using XDA Free mobile app
Click to expand...
Click to collapse
I have sent it to warranty and they told me that the phone was rooted, they sent me a picture with the back of the phone showing the imei and serial number and a front picture showing me that the phone has the app SuperSu.
They told me that the phone need a new motherboard that cost ~340 $.
Why do they need a new motherboard ? because the phone was not hard bricked.
I will get my device back.
Is possible to get it back with some modifications? I mean if they managed to boot it and see the SuperSu app.
I know to work with LG Flash Tool, so all I need is to put it to download mode.
All the above key combination didn't work. Power and vol- or power and vol+ ......
I will contact you again when i'll have my device.
Thanks!
yackmaan said:
I have sent it to warranty and they told me that the phone was rooted, they sent me a picture with the back of the phone showing the imei and serial number and a front picture showing me that the phone has the app SuperSu.
They told me that the phone need a new motherboard that cost ~340 $.
Why do they need a new motherboard ? because the phone was not hard bricked.
I will get my device back.
Is possible to get it back with some modifications? I mean if they managed to boot it and see the SuperSu app.
I know to work with LG Flash Tool, so all I need is to put it to download mode.
All the above key combination didn't work. Power and vol- or power and vol+ ......
I will contact you again when i'll have my device.
Thanks!
Click to expand...
Click to collapse
Any updates?
Long story with guys at warranty. I asked them to prove that the phone in those pictures is mine. From the picture showing my imei, yes is mine. But from the picture showing supersu app....they don't convince me. Every phone could have installed supersu app without being rooted. So i asked them to provide me another picture that will show the google account that was registered on phone and another with all my apps installed. They didn't send me such photos.
If they managed to revive my device and showing me there is a supersu app, that means they don't need to change the motherboard.
Am i right?
So i get my phone back working and they cut my warranty.
I tried vol+ and vol- and usb cable and download mode appeared.
Thankd!
yackmaan said:
Long story with guys at warranty. I asked them to prove that the phone in those pictures is mine. From the picture showing my imei, yes is mine. But from the picture showing supersu app....they don't convince me. Every phone could have installed supersu app without being rooted. So i asked them to provide me another picture that will show the google account that was registered on phone and another with all my apps installed. They didn't send me such photos.
If they managed to revive my device and showing me there is a supersu app, that means they don't need to change the motherboard.
Am i right?
So i get my phone back working and they cut my warranty.
I tried vol+ and vol- and usb cable and download mode appeared.
Thankd!
Click to expand...
Click to collapse
I smell something weird about LG. They probably put SuperSU on there or they got the wrong phone. Anyway i'm sure the community will help Don't lose faith/hope yet
About the warranty, its very complicated.
The store from which the phone was buyed, took it and send it to another warranty dealer authorized by LG, i guess, which was not named LG.
At last, I sold the phone, i own an lg g2 now and recently flash official lollipop.
Gladly and after some fails and always getting the secure boot certification error, i managed to access the download mode and with LG Flash Tool installed the stock .kdz on my LG L90 D405n.. thx for all the hints..
Before of this secure boot my e988 was working but no download mode. I've encountered this on a LG G2, so after some search i've found out that I must downgrade the bootloader. So, I rooted my device and installed autorec.apk from here http://forum.xda-developers.com/showthread.php?t=2715496 that fixes the " no download mode " .
I don't know how to skip the secure boot error. If someone managed please share with us!
Boot : Error Certification Verify
Hi. I am new to this thread although i had used this thread many times with issues i have had. There is this one issue im having that i can't seem to figure out which im usually good at doing by following forums or threads.
A couple weeks ago i had rooted my LG G Pad 7.0 V410 LTE tablet from AT&T. I had TWRP downloaded into it and i had flashed Candy5 it worked perfectly i just didn't like how it looked so i tryed to flash it back to original stock OS. But now when i boot my tablet up it goes to the LG screen and at the top left it says Boot : Error Certification Error. This has me dumbfounded on what i should do. when i connect the tablet to the computer nothing pops up no tablet connects to the computer. I tryed downloading the drivers and everything but nothing seemed to work. I need help with this issue please!!
I didn't know where else to post this issue due to being new!!!

LS908 Bricked, heen help!

Hello, I've spent about the past 5 days trying to figure this out. So, how this started was, a while back when I first got the phone, I wanted 4.4, so I rooted my phone, and tried to flashify a recovery like CWM and TWRP. Both of these failed. I tried many times, and no matter what I tried, flashing always failed. But guess what, my stock recovery was erased in the process. I forgot about it until today, where I found the OTA update to 4.4 was released, and attempted to do it. To my dismay, I forgot I had no recovery mode, and instantly got the "boot certification verify" error screen. Now All I can access is download mode, to my knowledge. So I've been trying to fix this, either by installing stock recovery, or another way to install a custom. All to no avail. When I use the lg flash tool for the stock recovery, it fails at "BIN CRC Check". Every.... Single.... Time. Despite downloading multiple replacement files. I would be perfectly content with installing a customer recovery, but the ways I see require the phone to be on, and use the built in recovery mode. At this point, my phone is bricked, and I am looking for any and all ways to either A) boot back up normally without installing a recovery and fix it later, or B) install a recovery, even if it's the hard way.
Update:
I followed this thread:
http://forum.xda-developers.com/showthread.php?t=2582142
It looked like it was going to work. I am using a Xubuntu virtual machine. I was copying the files over, and every time it finished copying a file, it unmounted and remounted my phone (I don't know if that was suppose to happen, just worth mentioning if it wasn't suppose to). I was super excited to do it. Hard rebooted my phone. And now it's just a blank screen. I have no logo, no error, and no download mode like I had before. Seriously need some help here.
Update#2:
I have the flash tool correctly working. Awesome! But..... I still have no download mode here.... So I can't use the tool....
Lastly, I am aware of the title.... i don't know how that happened. I intended to type "need", but somehow that happened. I do not know how to edit it.
Can you enter recovery?
Sent from my LG-LS980 using XDA Premium 4 mobile app
Ouch bud you are hard bricked pretty much. It sounds to me from what you explained all the partitions are wiped clean. I don't think there is any recovery from that unless you have a nand programmer
Sent from my LG-LS980 using xda app-developers app
brockzilla said:
Hello, I've spent about the past 5 days trying to figure this out. So, how this started was, a while back when I first got the phone, I wanted 4.4, so I rooted my phone, and tried to flashify a recovery like CWM and TWRP. Both of these failed. I tried many times, and no matter what I tried, flashing always failed. But guess what, my stock recovery was erased in the process. I forgot about it until today, where I found the OTA update to 4.4 was released, and attempted to do it. To my dismay, I forgot I had no recovery mode, and instantly got the "boot certification verify" error screen. Now All I can access is download mode, to my knowledge. So I've been trying to fix this, either by installing stock recovery, or another way to install a custom. All to no avail. When I use the lg flash tool for the stock recovery, it fails at "BIN CRC Check". Every.... Single.... Time. Despite downloading multiple replacement files. I would be perfectly content with installing a customer recovery, but the ways I see require the phone to be on, and use the built in recovery mode. At this point, my phone is bricked, and I am looking for any and all ways to either A) boot back up normally without installing a recovery and fix it later, or B) install a recovery, even if it's the hard way.
Update:
I followed this thread:
http://forum.xda-developers.com/showthread.php?t=2582142
It looked like it was going to work. I am using a Xubuntu virtual machine. I was copying the files over, and every time it finished copying a file, it unmounted and remounted my phone (I don't know if that was suppose to happen, just worth mentioning if it wasn't suppose to). I was super excited to do it. Hard rebooted my phone. And now it's just a blank screen. I have no logo, no error, and no download mode like I had before. Seriously need some help here.
Update#2:
I have the flash tool correctly working. Awesome! But..... I still have no download mode here.... So I can't use the tool....
Lastly, I am aware of the title.... i don't know how that happened. I intended to type "need", but somehow that happened. I do not know how to edit it.
Click to expand...
Click to collapse
Im confused you said you had download mode then didnt? If it works try using the alternate G2 dll named 8974, because the second time I used Flashtool only the alternate dll worked which is weird because just hours earlier I had used the original, the original said wrong model/download failed the second time.
abhinav.tella said:
Im confused you said you had download mode then didnt? If it works try using the alternate G2 dll named 8974, because the second time I used Flashtool only the alternate dll worked which is weird because just hours earlier I had used the original, the original said wrong model/download failed the second time.
Click to expand...
Click to collapse
As I explained in my update, the method I used didn't work and had removed all modes I could boot into, including download mode.
brockzilla said:
As I explained in my update, the method I used didn't work and had removed all modes I could boot into, including download mode.
Click to expand...
Click to collapse
Try this
http://forum.xda-developers.com/showthread.php?t=2477595
Then use LG Flash Tool, the Verizon guide works for LS980. Except use LS980 dll, and you must use Verizon USB drivers (Not T-Mobile, ATT etc), or Flash Tool wont work.
http://forum.xda-developers.com/showthread.php?t=2448960
I definitely hope you only semi bricked..... Tell me if that works.
brockzilla said:
As I explained in my update, the method I used didn't work and had removed all modes I could boot into, including download mode.
Click to expand...
Click to collapse
abhinav.tella said:
Try this
http://forum.xda-developers.com/showthread.php?t=2477595
Then use LG Flash Tool, the Verizon guide works for LS980. Except use LS980 dll, and you must use Verizon USB drivers (Not T-Mobile, ATT etc), or Flash Tool wont work.
http://forum.xda-developers.com/showthread.php?t=2448960
I definitely hope you only semi bricked..... Tell me if that works.
Click to expand...
Click to collapse
from what he said it sounds like a hard brick
Damn, not even fastboot? Feel sorry for you.

[Q] Soft bricked D855

Hi
Really appreciate any ideas on how to fix my LG G3.
Purchased phone on eBay - not sure where it's from but have asked buyer (if anyone knows how, I suspect this is part of my problem). Decided to flash new ROM but, when I installed AndroidNowHD1.4, I started to see lots of com.phone.android that made the phone essentially unusable. I then tried another ROM - SphinxG3NeoV2 - to see if that made a difference. Now when the phone boots, it goes to a Fastboot prompt.
I can get into Recovery OK, and Download mode. When I try the LGFlashTool to install TOT/DLL firmware, it's failing and seems to have an issue getting the IMEI and PID from the phone. Ive also tried installing a KDZ file using a FlashTool and that also is failing.
Many thanks in advance for suggestions!
Cheers,
Gavin
gavjs said:
Hi
Really appreciate any ideas on how to fix my LG G3.
Purchased phone on eBay - not sure where it's from but have asked buyer (if anyone knows how, I suspect this is part of my problem). Decided to flash new ROM but, when I installed AndroidNowHD1.4, I started to see lots of com.phone.android that made the phone essentially unusable. I then tried another ROM - SphinxG3NeoV2 - to see if that made a difference. Now when the phone boots, it goes to a Fastboot prompt.
I can get into Recovery OK, and Download mode. When I try the LGFlashTool to install TOT/DLL firmware, it's failing and seems to have an issue getting the IMEI and PID from the phone. Ive also tried installing a KDZ file using a FlashTool and that also is failing.
Many thanks in advance for suggestions!
Cheers,
Gavin
Click to expand...
Click to collapse
What is it that makes you say it has issues with the IMEI when flashing out of interest?
What the error with flash tool?
We can help you unless you get specific with the error messages dude.
Unbrick
gavjs said:
Hi
Really appreciate any ideas on how to fix my LG G3.
Purchased phone on eBay - not sure where it's from but have asked buyer (if anyone knows how, I suspect this is part of my problem). Decided to flash new ROM but, when I installed AndroidNowHD1.4, I started to see lots of com.phone.android that made the phone essentially unusable. I then tried another ROM - SphinxG3NeoV2 - to see if that made a difference. Now when the phone boots, it goes to a Fastboot prompt.
I can get into Recovery OK, and Download mode. When I try the LGFlashTool to install TOT/DLL firmware, it's failing and seems to have an issue getting the IMEI and PID from the phone. Ive also tried installing a KDZ file using a FlashTool and that also is failing.
Many thanks in advance for suggestions!
Cheers,
Gavin
Click to expand...
Click to collapse
Hi there,
I had the softbrick when I tried flashing the TWRP recovery image and screwed up. The phone didn't start up anymore and didn't go into recovery either. Just a black screen saying [680]fastboot. (on a D855).
Solution:
* Go to youtube,
* Type Unbrick LG G3,
* Open the video from ZEDOMAX,
* Follow the tutorial, all the links are in the description below.
With me, the first time I tried flashing the stock ROM it stoppedd at 15%, the seccond time at 94%, the third time it went all the way. Make sure wait long enough before you disconnect the USB cable. (The screen must be on 3!)
This should solve you problem.
Appologies for the weirdd description to get to the video. I'm new here so I can't popst direct links yet
WJ
Note 3 / SlimROM
LG G3 / StockROM
Hi
Many thanks for responding.
WJ - I was following a similar video but when I watched your suggestion, he made a bit of a deal about digging out an old windows laptop. I was using windows in VMWARE on my mac. I tried it using Boot Camp and it seems to have worked.
Cheers,
Gavin

I Bricked and Unbricked my day one V30 in one night (How to not be completly screwed)

I picked up my UK V30 H930 yesterday all fine and saw that LG have unlocked the bootloader on my model so I went ahead and tried it along with trying the alpha TWRP build
So I thought id write about what went wrong and how I recovered from it.
I made the mistake of letting the phone auto update to 10v software verion before I did this. As I had 10f on before when I bought the phone.
I went to load in all the software needed to unlock the bootloader and proceeded to do so but in my haste of the user data being wiped taking a longer then I thought it would I unpluged the phone to try "fastboot flash unlock unlock.bin" again . No such luck already unlocked. It booted back in fine so I thought everything was ok but that was the moment I thought could have caused my entire night to be ruined.
I thought with the bootloader saying it was unlock it was now fine to flash TWRP on now so went to do that and discovered it would no longer boot into the rom anymore coming up with the LG V30 Logo and just staying put. Thought it must be my 10v software version messing it up. Ok ill try to flash a 10f stock kdz. After about an hour or so of 'Finding my feet' with the phones boot methods for download mode, Fastboot and recovery I found that twrp was being strange with mounting the phone tried otherways eventually got the phone talking to the pc by using uppercut with LGUP and having the phone in download mode and the port com channel in device mananger set to com 41. After about 4 tries of flashing KDZ's to the phone it would just come with a "erasing" circle and proceed to get stuck on boot logo again so I messed about with .dlls and tried to other methods. Still nothing.
Now I tried LG Bridge's "Update error recovery" and I was actually talking to the phone for the 1st time so i let it do its thing which took well over an hour to download the kdz file. "Fine just work please". it got to the updating stage at 5% and froze and the phone being in download mode hadnt done a thing. I tried again but still nothing. Eventually now at 6am and having been up all night I went to give up but I manged to get it on to fastboot mode and by chance came across "flashing lock_bootloader" tried and it and it locked tthe bootloader back up (this thing of LG saying it cannot be undone must be rubbish?) now before I tried anything I rebooted the phone . IT BOOTED! onto the fresh 10v KDZ i had installed on it but before anything I wanted to see if it would now run with a unlocked bootloader on its own with no TWRP installed. It works! Now i just need a method of rooting but im now ready at least.
Hope this helps anyone with simular troubles.
Also had some trouble yesterday after trying out some Magisk modules.
On reboot it sometimes got stuck in the LG V30 screen, and sometimes even the bootanimation came up, but it didnt finish the boot lol
Only installed and adblock btw, and tried the Xposed module. Uninstalled that again btw. Now only using Adblock.
Phone also seems to need Power + Vol- to force shutdown for me, not only Power like other phones. Also didnt manage to find a way to boot into recovery when the phone is off, only found a way to get into the factory reset screen ?
sadly i dont have a working sdcard currently (my 3 year old 128GB one is read only for some reason, atleast changes dont get applied), so ill wait for a new one to mess around more ^^
Also working on a LOS14.1 build atm (it compiled, but didnt adapt all parts of thr device tree yet, and no idea if i have all vendor files lol)
SGCMarkus said:
Also had some trouble yesterday after trying out some Magisk modules.
On reboot it sometimes got stuck in the LG V30 screen, and sometimes even the bootanimation came up, but it didnt finish the boot lol
Only installed and adblock btw, and tried the Xposed module. Uninstalled that again btw. Now only using Adblock.
Phone also seems to need Power + Vol- to force shutdown for me, not only Power like other phones. Also didnt manage to find a way to boot into recovery when the phone is off, only found a way to get into the factory reset screen
sadly i dont have a working sdcard currently (my 3 year old 128GB one is read only for some reason, atleast changes dont get applied), so ill wait for a new one to mess around more ^^
Also working on a LOS14.1 build atm (it compiled, but didnt adapt all parts of thr device tree yet, and no idea if i have all vendor files lol)
Click to expand...
Click to collapse
Ive just managed to get 10f on so ill retry flashing twrp now.
Are you sure your sdcard doesnt have a little read/write switch on it . Im sure i remember so of them used to have one.
Dreamxtreme said:
Ive just managed to get 10f on so ill retry flashing twrp now.
Are you sure your sdcard doesnt have a little read/write switch on it . Im sure i remember so of them used to have one.
Click to expand...
Click to collapse
nope, doesnt have one. Neither windows nor Linux fail at writing on it, or when deleting files, but as soon as I re-insert the SDCard all changes are reversed. Formatting doesnt work anymore, unknown error. Tried that in Windows, Linux and in the Phone (Androids formatting crashed, TWRPs produced an error after it timed out)

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