My brother has a LG G4 from verizon. He tried to install MM through a KDZ file, something went wrong during the installation. Now the phone is in a bootloop, it says: "Secure booting Eroor! Error 1003". I can enter to the stock recovery and that's it, when I try to put it on download mode, it enters the screen where it says "Download Mode" and then reboots, it doesn't stay. I tried using LGUP but it doesn't detect it because it keeps reboting on download mode.
Is there a way to unlock the bootloader, entering fastboot mode or installing twrp from the stock recovery?
Please Help!
chandler240 said:
My brother has a LG G4 from verizon. He tried to install MM through a KDZ file, something went wrong during the installation. Now the phone is in a bootloop, it says: "Secure booting Eroor! Error 1003". I can enter to the stock recovery and that's it, when I try to put it on download mode, it enters the screen where it says "Download Mode" and then reboots, it doesn't stay. I tried using LGUP but it doesn't detect it because it keeps reboting on download mode.
Is there a way to unlock the bootloader, entering fastboot mode or installing twrp from the stock recovery?
Please Help!
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Please read forum rules before posting! You may post your question once and wait for an answer!
http://forum.xda-developers.com/verizon-g4/help/help-soft-brick-t3338146
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Hello,
Here is what led to my issue:
I rooted my phone using this method: http://forum.xda-developers.com/showthread.php?p=38886073#post38886073
Downloaded clockwork rom manager.
Here comes the thing I don't remember. At least i know that the last thing i did was to click on 'backup current rom'
After this the phone reset itself and this message came up:
Secure booting error!
Cause: boot certification verify
Then i tried to reset using the power button, which led me to the 'battery full' screen - afterwards i was able to reboot. As stupid as I am I just tried the same thing again. And ever since i am stuck at the 'Secure booting error!' screen.
I am unable to enter download mode. I get to the 'Hard factory reset' screen, but if i accept doing so, it says 'Secure booting error!' again.
I also remember clicking on 'restart into recovery mode' at some point, but this is not the last thing i did.
I am really desperate. Please, help me!
Well i had the same issue today... It happened after i did two changes. One of them was to to try to relock from freegee and flash twrp again from freegee. In my case i was able to go in download mode and flash original kk rom with lg flash tool.
Unfortunatly, trying to boot in downloadmode, i still get the same error :/
Jubi-Wan said:
Unfortunatly, trying to boot in downloadmode, i still get the same error :/
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Click to collapse
How are you trying to boot into download mode? And what factory reset screen? It seems as though you did not unlock the bootloader using freegee, if you make any changes and relock the boot loader you will get that error. But it seems that it has not been unlocked. If you hold power and volume up what happens? Same thing when power and volume down, one of them is recovery (possibly factory reset you are seeing) and the other is download mode. I don't remember right now but you should read the whole softbrick thread and see if you are missing something. You may need to use LGPNST to go back to stock, you can also use that program to flash a new recovery so read carefully and follow all steps.
When this happened to me I was able to flash an unlocked bootloader and it allowed me to use my phone again as it was before doing something stupid (for me it was an attempt to re lock the bootloader).
well, i managed to get into download mode. Obviously i used the wrong method to get into download mode...
I used this method and everything worked fine, so far. : http://forum.xda-developers.com/showthread.php?t=2249500
My phone doesn't boot now. Fast Boot doesnt work aswell.
All that happens is a white battery showing on the screen and when i try to fastboot all that happens is that the LED is blinking or glowing red after some while.
Jubi-Wan said:
well, i managed to get into download mode. Obviously i used the wrong method to get into download mode...
I used this method and everything worked fine, so far. : http://forum.xda-developers.com/showthread.php?t=2249500
My phone doesn't boot now. Fast Boot doesnt work aswell.
All that happens is a white battery showing on the screen and when i try to fastboot all that happens is that the LED is blinking or glowing red after some while.
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Click to collapse
What do you mean when you try to fastboot? Fastboot is basically the bootloader and allows you to select recovery or download mode. What you should have done after following that thread is go to recovery and wipe everything and flash a new ROM.
If you are saying that the bootloader is not coming up and allowing you into recovery then I believe something was missed.
After trying out some varioants of this it worked: http://forum.xda-developers.com/showthread.php?p=40274560&highlight=red+led#post40274560
I wiped the phone, but since I had to leave over the weekend i just turned it off and went away.
Now that I am back, nothing works now :/ The Phone doesnt react to anything, not even donwload-mode.
Is the battery too low maybe? It's on the wall now for a few hours, but it still doesn't react. It's not warm either.
edit:
when i charge the phone, i will get a 'watchdog bark' after some time allowing me to get into recovery. accesing downloadmode from there doesn't do anything. strangely, the recovery isnt trwp although it should be because teenybin comes with it. it's 'bbs.gaodi.net' which doesn't have a sideload feature. what do i do now?
edit2:
after 10000 tries i got into download mode. i don't want to **** up now so i won't do anything until i know exactly what to do.
any advice?
edit3:
got it working by flashing another teenybin which included trwp - then i installed miui via sideload. i don't have signal though, but i will open another thread for this since this is another issue.
I have an LG G3 D850 and have successfully re-installed the stock firmware before. However, yesterday I got the dreaded boot loop. So I thought I would re-flash it again with stock firmware. It initially would enter "download mode" but the LGFlashTool would fail every time with error "DOWNLOAD FAIL", then eventually the phone would not enter "download mode" at all. Once I try to enter "download mode" the LG screen comes up then it goes directly to the Firmware Update screen. If I can't get the phone into "download mode" I can't re-flash the stock firmware and it's utterly useless. Please help!
My brother has a LG G4 from verizon. He tried to install MM through a KDZ file, something went wrong during the installation. Now the phone is in a bootloop, it says: "Secure booting Eroor! Error 1003". I can enter to the stock recovery and that's it, when I try to put it on download mode, it enters the screen where it says "Download Mode" and then reboots, it doesn't stay. I tried using LGUP but it doesn't detect it because it keeps reboting on download mode.
Is there a way to unlock the bootloader, entering fastboot mode or installing twrp from the stock recovery?
Please Help!
chandler240 said:
My brother has a LG G4 from verizon. He tried to install MM through a KDZ file, something went wrong during the installation. Now the phone is in a bootloop, it says: "Secure booting Eroor! Error 1003". I can enter to the stock recovery and that's it, when I try to put it on download mode, it enters the screen where it says "Download Mode" and then reboots, it doesn't stay. I tried using LGUP but it doesn't detect it because it keeps reboting on download mode.
Is there a way to unlock the bootloader, entering fastboot mode or installing twrp from the stock recovery?
Please Help!
Click to expand...
Click to collapse
Please read forum rules before posting! You may post your question once and wait for an answer!
http://forum.xda-developers.com/verizon-g4/help/help-soft-brick-t3338146
Hello everyone
I tried to flash a factory rom using LG Flashing Tool, but the process in windows shut down and the flash process failed.
Now I switch it on, and the "LG powered by Android" screen comes on and the bootloop starts.
I've tried to boot in download mode again, but can't enter it, so I have tried to boot to factory reset and I did it, but got no change in this situation.
I have also tried connecting to PC but can't find the phone.
What I could do to solve it? Throw at wall?:silly:
Any help?
I know this has happend to other people, but nothing worked for me. Maybe some of you guys had same problem.
I can't go into "Download mode"
My PC doesn't recognize device
But I can go into recovery. I have flashed latest recovery. Tried flashing latest LOS (it flashes without any errors) but still when restarting I'm getting "Secure Booting Error" and after screen goes black red and blue led starts to flash
LTMendarynas7 said:
I know this has happend to other people, but nothing worked for me. Maybe some of you guys had same problem.
I can't go into "Download mode"
My PC doesn't recognize device
But I can go into recovery. I have flashed latest recovery. Tried flashing latest LOS (it flashes without any errors) but still when restarting I'm getting "Secure Booting Error" and after screen goes black red and blue led starts to flash
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If you have flashed twrp, does it work to reboot to download mode from it?
SnowFuhrer said:
If you have flashed twrp, does it work to reboot to download mode from it?
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Click to collapse
How I didn't tried that... Yes it does, it says "firmware update" and stucks there
I think I need to try https://forum.xda-developers.com/showpost.php?p=64624324&postcount=2 this metod..I'll give it a try
P.S Done it. Now Im back to stock, it's time to go custom again