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error: Boot certification verify

how in hell can i solve the problem "error: Boot certification verify"
i can not go into recovery, download or anything, i searched so much but i didnt find an answer for the lg g2. pls help me :crying:

can anybody help me pls? nothing works for me :crying:

hansi25 said:
can anybody help me pls? nothing works for me :crying:
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I have the same problem.

same problem
hansi25 said:
can anybody help me pls? nothing works for me :crying:
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Click to collapse
i am having the same to problem for a sprint optimus g however if plugged to laptop press volume up dwn and pwr at same time my phone goes into download mode but will not load drivers

HELP!!! - Bad TWRP Flash
Has anyone solved this?

I have the same issue
I ended up sending the phone to lg and they wanted 350.00!!!!! to fix it!!!! i told them to send my phone back. not idea what to do yet once i get it but hopefully someone will come up w a solution. i cant even get mine into download mode or recovery

hansi25 said:
how in hell can i solve the problem "error: Boot certification verify"
i can not go into recovery, download or anything, i searched so much but i didnt find an answer for the lg g2. pls help me :crying:
Click to expand...
Click to collapse
Here is the solution.
http://forum.xda-developers.com/showthread.php?t=2582142

Do you have an option that DOESNT require ubuntu to install it?

me to in the same boat, The thing is I have download mode but gets stuck at 49%, I need the TOT file for D802G Think this is EE / Three. does anyone know if kdz can be converted to TOT "worth a try"

same problem
i have the same problem ...did you find it?

Just did this to my phone just a few moments ago as well :/ anyone have any luck with windows?

giorgos13 said:
i have the same problem ...did you find it?
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I don't know if you managed to find the solution to this, but for anyone else out there that hasn't, just download the AutoRec app. Fixes it in seconds and flashes TWRP Recovery.

need help
jacobdavidson96 said:
I don't know if you managed to find the solution to this, but for anyone else out there that hasn't, just download the AutoRec app. Fixes it in seconds and flashes TWRP Recovery.
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my LG G2 F320L just got this issue.
what do you mean download the AutoRec app? its just stuck at LG logo then the error will show up. then just blank screen.
please help.

mm2_02 said:
my LG G2 F320L just got this issue.
what do you mean download the AutoRec app? its just stuck at LG logo then the error will show up. then just blank screen.
please help.
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It's a bootloader issue, for me it was. If you can enter recovery, flash JB Bootloader or KK Bootloader, whatever your rom needs. it worked for me.

Autorec
hansi25 said:
how in hell can i solve the problem "error: Boot certification verify"
i can not go into recovery, download or anything, i searched so much but i didnt find an answer for the lg g2. pls help me :crying:
Click to expand...
Click to collapse
Hey man, if youre able to boot into your rom, try this,
AutoRec
http://forum.xda-developers.com/showthread.php?t=2715496
It sorts of reflashes your boot recovery to TWRP, works for me when i got the same error.

jacobdavidson96 said:
I don't know if you managed to find the solution to this, but for anyone else out there that hasn't, just download the AutoRec app. Fixes it in seconds and flashes TWRP Recovery.
Click to expand...
Click to collapse
Thanks for this. I just ended up back on a (brand new, mind you) G2. I've had SO many problems with rooting, recovery, download mode, etc... I have TWRP installed, stock ROM and somehow ended up getting the secure boot error only when entering download mode. My phone was booting, recovery was working, etc - just download mode seemed toasted. AutoRec fixed it - so, thanks for posting this!

I had the same issue, if some of you want to know how I fixed it these steps might help you too...
What you need is :
Any versoin of stock kdz. I used 11a. GET FROM HERE
LG Universal drivers. Get them here
If you have verizon get your driver here
KDZ Flash tool. GET IT HERE
1- Power off your phone completely ... remove battery etc...
2- Plug the UsB cable to your phone and your computer.
3- Hold down volume up and power button and enter in the download mode
4- If you in download mode you can now flash any KDZ file using the method in one of the guide above or find it using google.
after flashing you will have the stock rom installed. I was on 4.2 and for some reason i was not able to root with "ioroot" until i updated to 4.4!
so make sure you are on 4.4 to do the root
later you can install any recovery. I installed autorec.apk and then booted into recovery and flashed latest version of twrp
thats about it.... but don't install MIUI that rom is stupid

hansi25 said:
how in hell can i solve the problem "error: Boot certification verify"
i can not go into recovery, download or anything, i searched so much but i didnt find an answer for the lg g2. pls help me :crying:
Click to expand...
Click to collapse
have you try vol down + power button ( LG Logo ) then Hold Vol down + Power ? till you get to factory reset ! and power key again will take you back to recovery

WOW! Thank You soooooooooooooo much! I flashed a cloudyg3 backup from VK Rom and got this error but this method worked!

Just download AutoRec and choose to flash TWRP. Worked for me.

L7 P700 bricked, need help!!!

So after installing cyanogen on my phone for the first time it all worked fine but I had no mobile data/signal at all, so I decided to try something else, but once I tried the install failed, and I didnt have access to my SD card from recovery mode, so when I tried to reboot the phone it just went into the LG logo and now its stuck at the battery screen. I've no idea how to get back to recovery mode, I can only get into emergency mode, PLEASE SOMEONE HELP! :crying: :crying: :crying:

If you can get into emergency mode, that's enough to save your phone! You can flash your phone with stock firmware (pick the one you need from this site: http://lg-phone-firmware.com/index.php?id_mod=13)
You can probably find multiple threads on how to flash a KDZ file to your phone on this forum!
Good luck!!!
EDIT:
http://www.hackmyandroid.com/unbrick-lg-l7-p700-android-phone/2531
This is a pretty good step by step tutorial on how to unbrick your phone, easy to find on Google

wakolubawe said:
So after installing cyanogen on my phone for the first time it all worked fine but I had no mobile data/signal at all, so I decided to try something else, but once I tried the install failed, and I didnt have access to my SD card from recovery mode, so when I tried to reboot the phone it just went into the LG logo and now its stuck at the battery screen. I've no idea how to get back to recovery mode, I can only get into emergency mode, PLEASE SOMEONE HELP! :crying: :crying: :crying:
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you didn't have signal because you probably didn't have v20baseband flashed. You can enter emergency mode by taking out phones battery ,holding vol up and connecting phone to usb. Then flash this with kdz http://forum.xda-developers.com/showthread.php?t=2176430 ,after that you can try flashing cmw again but you will need to change baseband to have signal if you come from ics(v10) to JB+(v20)
http://forum.xda-developers.com/showthread.php?t=2335273

LG G2 Bricked Tried as many things on xda as I could find.

Hi Folks,
I had TWRP installed and updated cm11 with a new nightly. I did a wipe cache and restarted. Phone got stuck on the LG screen. I could not get into recovery after this. I then used the LG support tool and flashed using 'Upgrade Recovery' option.
Phone now is stuck on same LG boot screen but now LED flashes also.
Can anyone help? I am really stuck here guys. :crying:
Cheers,
Trev

Log seems to say it worked but still stuck on boot screen.

trevt said:
Log seems to say it worked but still stuck on boot screen.
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Doesn't the hard reset combination get you into recovery?

trevt said:
Log seems to say it worked but still stuck on boot screen.
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Click to collapse
Did you select 3GQCT instead of CDMA which is selected by default ?

See if you can get into recovery once again.
Some tips: Hold power and down to make device restart, then let go... As soon you see the lg logo hold down and power. Timing is the key. There are sometimes I think I don't have recovery but in reality i do. Its all user error. If that don't work, try get in download mode. And flash zvc tot and get back to the stock.
Sent from my LG-LS980

Do a hard reset. it helped me yesterday. It's just that the hard reset key sequence for KK roms is different than how it was with JB. try to google it because I lost the topic.

stilkus said:
Do a hard reset. it helped me yesterday. It's just that the hard reset key sequence for KK roms is different than how it was with JB. try to google it because I lost the topic.
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Click to collapse
Hey,
I'm in the same case but the R&D soft say there is an error. Plus I can't acces the hard reset menu nor recovery...
I can't also see my device on recovery as I only see in the device manager : LGE Android Net USB Serial Port.
And this is like that when I try to boot or when I'm in download mode.. Any help would be great...
PS : I try to make a restore with the LG Mobile Support Tool (the true one) but will only get answer in 6hours (best connection ever!!)...
Edit1 : That worked! I get out of the download mode and let the software do is job and there is new! Now I have to put a pin /password but I don't know which one ^^' ... I've tried to go back in download mode or hard reset mode but it don't work..
Edit2 : I don't get how but I manage to get in download mode. After that I perform a restore to another kdz and now I'm using the factory reset which seems to take a lot of time..

Thanks for the replies folks. Got it sorted out. This seemed to be the only way to get it sorted :
http://forum.xda-developers.com/showthread.php?t=2687768
Massive thanks to member MK45A :good:

Rooted lg g2 not charging,no recovery,no booting

Hello everyone!! I really need your help....I have an LG G2 witch I rooted and flased Cloudy 2.2 a few months back.
Today I wanted to flash the new Cloudy 3.3 . I did the clasic steps, recovery, wipe and flash.
The thing is that I might chose the wrong Aroma because I didnt remember
Now it does not open, neither charge, cant get to recovery mode, prety match nothing.
When you press the power button there is a glimps of the LG logo and then nothing.
Please advice
Thanks in advance

troulen said:
Hello everyone!! I really need your help....I have an LG G2 witch I rooted and flased Cloudy 2.2 a few months back.
Today I wanted to flash the new Cloudy 3.3 . I did the clasic steps, recovery, wipe and flash.
The thing is that I might chose the wrong Aroma because I didnt remember
Now it does not open, neither charge, cant get to recovery mode, prety match nothing.
When you press the power button there is a glimps of the LG logo and then nothing.
Please advice
Thanks in advance
Click to expand...
Click to collapse
Can you access to download mode or fastboot mode? looks like qhsusb is corrupted. If that is the case you could try to follow this video tutorial to fix it. It is kind of the last resourse to fix a brick but it works, be patient I used this metod two days ago, bricked my lg g2 with simply rom v2 and my pc didn't recognized the phone, not even as an unknown device.
https://www.youtube.com/watch?v=E7zbs6of_4I

Does the led notification blinking when you put the charger on?
Sent from my LG-D802 using XDA-Developers mobile app

Thanks
No it doesnt blink.....but I will try the other guys think and see.....thanks for your interest

Please Help My Phone Bricked, showing white lines Due to Autorec

Hey Guys could someone please help me my phone is bricked i was trying to install a custom recovery through autorec hence when i pressed the reboot to recovery option my phone hanged and gone dead i cant see anything in my screen without that freaky whilte lines at the corner of screen i tried everything which i know could please someone here helps me that how i come out of this problem. Real Help will be appreciated. please am waiting for your replies.. i am using LG G2 LS980

please help me my phone is bricked i was trying to install a custom recovery through autorec hence when i pressed the reboot to recovery option my phone hanged and gone dead i cant see anything in my screen without that freaky whilte lines at the corner of screen i tried everything which i know could please someone here helps me that how i come out of this problem. Real Help will be appreciated. please am waiting for your replies.. i am using LG G2 LS980

luckyali4it said:
please help me my phone is bricked i was trying to install a custom recovery through autorec hence when i pressed the reboot to recovery option my phone hanged and gone dead i cant see anything in my screen without that freaky whilte lines at the corner of screen i tried everything which i know could please someone here helps me that how i come out of this problem. Real Help will be appreciated. please am waiting for your replies.. i am using LG G2 LS980
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Click to collapse
Does the download mode still work?
(turn off the smartphone, hold Vol. Up and plug in the usb cable Form PC)
If so, then simply flash the Stock-ROM with the LG-Servicetool.
I think your Downloadmode is bricked too. Right?
does the smartphone start in android and do you have root?
if so, you have to extract the laf.img from your firmware and install it via flash app as recovery.
Your Firmware?:
https://lg-firmwares.com/de/lg-ls980z-firmwares/
KDZ Extractor (WindowsLGFirmwareextract...):
https://forum.xda-developers.com/showthread.php?t=2600575
Watch this Video:
https://m.youtube.com/watch?v=M4s6wrpD2Gk
-> Rename the extracted laf12345.bin to laf.img !
Than the download mode should work again and you can reinstall your Stock-Rom with the LG servicetool and all work fine again.