[Q] Secure Booting Error! Cause: boot certification verify - G3 Q&A, Help & Troubleshooting

Hi,
My phone specs:
LG G3-D855
Android-version 5.0
V20E
Today I rooted my phone with this guide:
http://forum.xda-developers.com/lg-g3/general/guide-root-lg-firmwares-kitkat-lollipop-t3056951
Everything went well and got my phone rooted. After that I tried to install TRWP, except I missed a line in that guide and got the error above.
"I saw a lot of questions of G3 users about how to install Twrp after the root, so I will explain briefly:
For now, if you are on stock lollipop you can't just flash Twrp via flashify etc like the old days in KitKat,"
So I did use Flashify to flash TWRP and got the error and I'm unable to go into recovery mode.
Looked up on google on what I can do to fix this problem and found this:
http://lgg3root.com/lg-g3-root/how-to-unrootunbrick-lg-g3/
In this guide they say I can download the LG G3 Stock Factory Firmware. Looked for my version and they listed:
Android 4.4.2 V10E LG G3 Stock Firmware D855 European 16GB
Except when I look into my phone and look at the version it says V20h-E, would that be a problem when I use the V10E?
Or is there another way to fix this problem?

@Midway6
only one method I think : http://forum.xda-developers.com/showthread.php?t=2785089
When you flash on Lollipop a twrp without dowgrade aboot and laf and no bump boot , your G3 is blocked.
First you root your G3 : http://forum.xda-developers.com/lg-g3/general/guide-root-lg-firmwares-kitkat-lollipop-t3056951
Then you use Autorec , the apk from @bender_007 : https://play.google.com/store/apps/details?id=b007.autorecd855

jac10000 said:
@Midway6
only one method I think : http://forum.xda-developers.com/showthread.php?t=2785089
When you flash on Lollipop a twrp without dowgrade aboot and laf and no bump boot , your G3 is blocked.
First you root your G3 : http://forum.xda-developers.com/lg-g3/general/guide-root-lg-firmwares-kitkat-lollipop-t3056951
Then you use Autorec , the apk from @bender_007 : https://play.google.com/store/apps/details?id=b007.autorecd855
Click to expand...
Click to collapse
Does that mean I can use the V10E with my V20H to go back to stock?
Nevermind I found the V20H in the Lollipop V5.0 folder. I'll use this one
http://storagecow.eu/index.php?dir=Xda/LG+G3/Stock/Lollipop+5.0/D855/
Gonna try the link you gave me. I'll report back when I tried it.

Midway6 said:
Does that mean I can use the V10E with my V20H to go back to stock?
Nevermind I found the V20H in the Lollipop V5.0 folder. I'll use this one
http://storagecow.eu/index.php?dir=Xda/LG+G3/Stock/Lollipop+5.0/D855/
Gonna try the link you gave me. I'll report back when I tried it.
Click to expand...
Click to collapse
you can apply the 20H kdz yes, then you root and use autorec.

jac10000 said:
you can apply the 20H kdz yes, then you root and use autorec.
Click to expand...
Click to collapse
I did that method so far so good. Waiting for Android to finish those upgrades and I'll root again.
So first I'll use that one click root method and after that I use Autorec application to install the recovery?

Midway6 said:
I did that method so far so good. Waiting for Android to finish those upgrades and I'll root again.
So first I'll use that one click root method and after that I use Autorec application to install the recovery?
Click to expand...
Click to collapse
Yes exactly.
Before autorec, this method worked well but since bender_007 develop autorec for the G3 I recommend it

jac10000 said:
Yes exactly.
Before autorec, this method worked well but since bender_007 develop autorec for the G3 I recommend it
Click to expand...
Click to collapse
Thanks a lot! You saved my night
So now I can flash new roms and stuff and if something brakes again I can use this method to restore my phone.

Midway6 said:
Thanks a lot! You saved my night
So now I can flash new roms and stuff and if something brakes again I can use this method to restore my phone.
Click to expand...
Click to collapse
Exactly that

jac10000 said:
Exactly that
Click to expand...
Click to collapse
I'm getting a error while flashing.
Checking for MD5 file...
Skipping MD5 check: No md5 file found
Error flashing zip '/external_sd/.........zip'
Updating partition details...
done...
Failed.
I've never heard of a MD5 while flashing a rom.
How can I fix this problem? Is it necessary for flashing?

I never check md5 on twrp because I have always this error message. So flash the Rom without md5.
Before backup the Rom stock with twrp

Related

..

..
GenericPolarBear said:
I have an LG G3 D855 32GB. I have attached the Software info screenshot below.
I am wanting to root, add TWRP or whatever recovery, and install the CM12 ROM (or if there is something better you could suggest). The phone is currently running android version 5.0 as shown in the screenshot.
What is the best way to do this? I have been looking around and haven't found any for sure way of doing this.
Any help would be appreciated, thanks!
Click to expand...
Click to collapse
downgrade to a kitkat kdz then root and flash an lollipop rom
suljo94 said:
downgrade to a kitkat kdz then root and flash an lollipop rom
Click to expand...
Click to collapse
How would I do that? And which would be the right thing to flash with, because I don't see many other LG G3s with the same software as me.
GenericPolarBear said:
How would I do that? And which would be the right thing to flash with, because I don't see many other LG G3s with the same software as me.
Click to expand...
Click to collapse
How to guide (start from step 4 with This kdz)
http://forum.xda-developers.com/showpost.php?p=54809238
then root(purpledrake, set up twrp and flash an lollipop rom(any d855 rom will do)
note: do not unplug your phone untill everything is complete or you will brick it
suljo94 said:
How to guide (start from step 4 with This kdz)
http://forum.xda-developers.com/showpost.php?p=54809238
then root(purpledrake, set up twrp and flash an lollipop rom(any d855 rom will do)
note: do not unplug your phone untill everything is complete or you will brick it
Click to expand...
Click to collapse
Thanks you very much, I have cyanogenmod and twrp installed and it's working perfectly. I was wondering if there is anyway to get the original camera app from the stock ROM, I have tried a bunch of other ones and they don't seem to be nearly as good.
GenericPolarBear said:
Thanks you very much, I have cyanogenmod and twrp installed and it's working perfectly. I was wondering if there is anyway to get the original camera app from the stock ROM, I have tried a bunch of other ones and they don't seem to be nearly as good.
Click to expand...
Click to collapse
not untill someone ports it over

No download mode on phone any longer!

I was on Validus latest version 20B bootstack and was having issues ,so I decided to unroot back to stock to start from a clean slate. Meanwhile, a friend trying to help installed 10r instead of 10c as I had asked him to do . I have no data and after doing some reading this is an issue with downgrading to 10r.Also there is something having to do with twrp and losing recovery mode. Now I have a phone with no data or fastboot mode. I've tried the adb/fastboot route to no aval. I'm not really versed in this method. I have the d851 model in white. I really need some help! Thanks in advance. :crying::crying:
When I've tried to use download mode my phone goes back to LG start screen
nytebird said:
I was on Validus latest version 20B bootstack and was having issues ,so I decided to unroot back to stock to start from a clean slate. Meanwhile, a friend trying to help installed 10r instead of 10c as I had asked him to do . I have no data and after doing some reading this is an issue with downgrading to 10r.Also there is something having to do with twrp and losing recovery mode. Now I have a phone with no data or fastboot mode. I've tried the adb/fastboot route to no aval. I'm not really versed in this method. I have the d851 model in white. I really need some help! Thanks in advance. :crying::crying:
When I've tried to use download mode my phone goes back to LG start screen
Click to expand...
Click to collapse
easy there champ lol let's fix this shall we.... So your phone does boot to homescreen?
Still_living714 said:
easy there champ lol let's fix this shall we.... So your phone does boot to homescreen?
Click to expand...
Click to collapse
yes it does I'm in process of trying the pupledrake lite method
nytebird said:
yes it does
Click to expand...
Click to collapse
do you have root access?
Still_living714 said:
do you have root access?
Click to expand...
Click to collapse
no
nytebird said:
no
Click to expand...
Click to collapse
I'm on 10r stock
nytebird said:
I'm on 10r stock
Click to expand...
Click to collapse
So use this to root:
http://forum.xda-developers.com/lg-g...lipop-t3056951
Then go to TWRP's official site and download the d851 latest twrp.img. Put that on your external SD card. Install flashify and install TWRP with the .img you just download. This should give you root and twrp back on your phone in less then 10 minutes depending on internet connection. From there you can do what ever you want, but probably should stick to Lollipop roms since going back to KK will have connection issues.
vel0city said:
So use this to root:
http://forum.xda-developers.com/lg-g...lipop-t3056951
Then go to TWRP's official site and download the d851 latest twrp.img. Put that on your external SD card. Install flashify and install TWRP with the .img you just download. This should give you root and twrp back on your phone in less then 10 minutes depending on internet connection. From there you can do what ever you want, but probably should stick to Lollipop roms since going back to KK will have connection issues.
Click to expand...
Click to collapse
It's a 404 page not found. Any other location for this file? And by the way, thanks for all of your help!! :good:

Problem with TWRP MM, Please Help

Dear All,
I install Android 6 KDZ yesterday , but i have some problem with network
I wan't to flash a modem , but i don't have any recovery like TWRP
i try to install but no way
any help please about how install twrp on LG G3 D855 MM ?
me too it....
Now... I WANT GO BACK LOPLIPOP....
But... Very Hard.
Help me!!!!!!!!!!!!!
maen.safadi said:
Dear All,
I install Android 6 KDZ yesterday , but i have some problem with network
I wan't to flash a modem , but i don't have any recovery like TWRP
i try to install but no way
any help please about how install twrp on LG G3 D855 MM ?
Click to expand...
Click to collapse
Please Help
farary11 said:
Please Help
Click to expand...
Click to collapse
Here's all you need You must be rooted
maen.safadi said:
Dear All,
I install Android 6 KDZ yesterday , but i have some problem with network
I wan't to flash a modem , but i don't have any recovery like TWRP
i try to install but no way
any help please about how install twrp on LG G3 D855 MM ?
Click to expand...
Click to collapse
Ernesto0023 said:
Here's all you need You must be rooted
Click to expand...
Click to collapse
False information shared by @Ernesto0023.
Following this guide will get you a secure boot error when attempting to boot into recovery. Even so following this guide is impossible because root is required and OP has no root on his kdz flashed MM.
My recommended solution would be reverting back to kitkat via kdz. If unfamiliar with the method follow this guide: http://forum.xda-developers.com/showthread.php?t=2785089
After reverting use the guide from post above: http://forum.xda-developers.com/lg-g3/orig-development/recovery-twrp-touch-recovery-2-8-2-0-t2966129
to flash TWRP.
Then fell free to flash whatever you want in TWRP. If stock lollipop ROM is you what you desire, download zip from here: http://forum.xda-developers.com/lg-g3/development/stock-t2961073
if stock MM is what you wish for download zips from here:
http://forum.xda-developers.com/lg-g3/development/stock-t2961073
or here:
http://forum.xda-developers.com/lg-g3/development/stock-d855-30b-images-kdz-flashables-t3282012
maen.safadi said:
Dear All,
I install Android 6 KDZ yesterday , but i have some problem with network
I wan't to flash a modem , but i don't have any recovery like TWRP
i try to install but no way
any help please about how install twrp on LG G3 D855 MM ?
Click to expand...
Click to collapse
You can't install it because you don't have root and it is not for MM availible yet
NatusVincere said:
False information shared by @Ernesto0023.
Following this guide will get you a secure boot error when attempting to boot into recovery. Even so following this guide is impossible because root is required and OP has no root on his kdz flashed MM.
My recommended solution would be reverting back to kitkat via kdz. If unfamiliar with the method follow this guide: http://forum.xda-developers.com/showthread.php?t=2785089
After reverting use the guide from post above: http://forum.xda-developers.com/lg-g3/orig-development/recovery-twrp-touch-recovery-2-8-2-0-t2966129
to flash TWRP.
Then fell free to flash whatever you want in TWRP. If stock lollipop ROM is you what you desire, download zip from here: http://forum.xda-developers.com/lg-g3/development/stock-t2961073
if stock MM is what you wish for download zips from here:
http://forum.xda-developers.com/lg-g3/development/stock-t2961073
or here:
http://forum.xda-developers.com/lg-g3/development/stock-d855-30b-images-kdz-flashables-t3282012
Click to expand...
Click to collapse
But with root and installing over ADB should work, or not?
I mean root isn't a Big Deal on the G3
Edit: Sorry, now i recognized its the unrooted official MM - maybe to much partying yesterday
Ernesto0023 said:
But with root and installing over ADB should work, or not?
I mean root isn't a Big Deal on the G3
Edit: Sorry, now i recognized its the unrooted official MM - maybe to much partying yesterday
Click to expand...
Click to collapse
Yeah
Even so if his MM would somehow be rooted it was still kdz flashed so it contains
MM bootloader. That equals BUMP not working.
Hope you had fun.
NatusVincere said:
False information shared by @Ernesto0023.
Following this guide will get you a secure boot error when attempting to boot into recovery. Even so following this guide is impossible because root is required and OP has no root on his kdz flashed MM.
My recommended solution would be reverting back to kitkat via kdz. If unfamiliar with the method follow this guide: http://forum.xda-developers.com/showthread.php?t=2785089
After reverting use the guide from post above: http://forum.xda-developers.com/lg-g3/orig-development/recovery-twrp-touch-recovery-2-8-2-0-t2966129
to flash TWRP.
Then fell free to flash whatever you want in TWRP. If stock lollipop ROM is you what you desire, download zip from here: http://forum.xda-developers.com/lg-g3/development/stock-t2961073
if stock MM is what you wish for download zips from here:
http://forum.xda-developers.com/lg-g3/development/stock-t2961073
or here:
http://forum.xda-developers.com/lg-g3/development/stock-d855-30b-images-kdz-flashables-t3282012
Click to expand...
Click to collapse
Thank you for replay
but i try to reverting back to kitkat via kdz, it not allow me to downgrade , and it's stuck and freeze on Download mode screen
NatusVincere said:
Yeah
Hope you had fun.
Click to expand...
Click to collapse
Offtopic:
Of course
Happy New Year to everyone here!
My phone doesnt want to downgrade. I stuck at download mode. I put my kdz file to lg flash tool and start it. After starting, lg mobile support comes and analyses phone. After that it says Upgrade stopped due to an error. I flashed mm yesterday! Phone opens normally everything works. No problem on recovery too (stock one). But i cant downgrade to lollipop! Please help!
Now, you flash TOT file 10x again with TOT file.... but dont change file DLL you have....
Download... file DLL fix...
https://drive.google.com/file/d/0B0VrTZddvLF7b3Q1b1BlQ2w0clE/view?usp=sharing

Running the good ol' KitKat 4.4.2 Need guidance to update

Hi I just bought a LG D855,
It's currently running the old KitKat right outta he box. Build Number: KVT49L, Software Version: V10n-GLOBAL-COM
The phone is missing the Update Center and thus I don't get any OTAs, I've decided to flash a custom MM for the phone. However while I try to flash TWRP via Flashify, it reboots into Fastboot and I see no sign of TWRP. Is there a specific TWRP I have to flash for KitKat?
Also, should I first update to LL and then to MM? I'd like to use any custom MM rom close to stock there is.
Your suggestions will be greatly appreciated.
Kind sirs, pray link me to the ROM that's closest to stock for any suggestions you may have personally. :highfive:
Thank you so much in advance.:victory:
superviked said:
Hi I just bought a LG D855,
It's currently running the old KitKat right outta he box. Build Number: KVT49L, Software Version: V10n-GLOBAL-COM
The phone is missing the Update Center and thus I don't get any OTAs, I've decided to flash a custom MM for the phone. However while I try to flash TWRP via Flashify, it reboots into Fastboot and I see no sign of TWRP. Is there a specific TWRP I have to flash for KitKat?
Also, should I first update to LL and then to MM? I'd like to use any custom MM rom close to stock there is.
Your suggestions will be greatly appreciated.
Kind sirs, pray link me to the ROM that's closest to stock for any suggestions you may have personally. :highfive:
Thank you so much in advance.:victory:
Click to expand...
Click to collapse
At first make it sure it's d855 or d850 or ls990..
Anik49 said:
At first make it sure it's d855 or d850 or ls990..
Click to expand...
Click to collapse
It is D855, checked via IMEI too. I just want TWRP installed but all I get is a fastboot error
superviked said:
It is D855, checked via IMEI too. I just want TWRP installed but all I get is a fastboot error
Click to expand...
Click to collapse
Look here http://forum.xda-developers.com/lg-g3/development/recovery-teamwin-recovery-modem-support-t2939088
Anik49 said:
Look here http://forum.xda-developers.com/lg-g3/development/recovery-teamwin-recovery-modem-support-t2939088
Click to expand...
Click to collapse
Ah! Dammit no! Stil the same problem it reboots to [760] fastboot mode started:crying:
superviked said:
Ah! Dammit no! Stil the same problem it reboots to [760] fastboot mode started:crying:
Click to expand...
Click to collapse
However I'm able to install this http://forum.xda-developers.com/lg-g3/general/recovery-cwm-chinese-english-d855-f400-t2825994
It's supposed to be a CWM. Can I flash a TWRP zip file using this CWM?
superviked said:
However I'm able to install this http://forum.xda-developers.com/lg-g3/general/recovery-cwm-chinese-english-d855-f400-t2825994
It's supposed to be a CWM. Can I flash a TWRP zip file using this CWM?
Click to expand...
Click to collapse
Now that you've asked to check if it's D850 or D855, please check the image attached. IMEI sticker says D855, so does IMEI Checker but I can see D850 written on the sides by the camera. Can you please confirm?
superviked said:
Now that you've asked to check if it's D850 or D855, please check the image attached. IMEI sticker says D855, so does IMEI Checker but I can see D850 written on the sides by the camera. Can you please confirm?
Click to expand...
Click to collapse
I think it's d850, go to this link http://forum.xda-developers.com/lg-g3/general/refurbished-fake-lg-g3-check-available-t3254928 use the tool to clear any confusion..
Anik49 said:
I think it's d850, go to this link http://forum.xda-developers.com/lg-g3/general/refurbished-fake-lg-g3-check-available-t3254928 use the tool to clear any confusion..
Click to expand...
Click to collapse
Hey thank you so much for this! I really hope I found this earlier. I can't boot into stock recovery though. It boots into fastboot. Do you think I should try installing the Bump'd version of the D850 TWRP? I don't wanna brick the device :crying:
superviked said:
Hey thank you so much for this! I really hope I found this earlier. I can't boot into stock recovery though. It boots into fastboot. Do you think I should try installing the Bump'd version of the D850 TWRP? I don't wanna brick the device :crying:
Click to expand...
Click to collapse
Yes,You have to flash the bumped twrp...
Anik49 said:
Yes,You have to flash the bumped twrp...
Click to expand...
Click to collapse
Anik, thanks a ton for all your help. It was because of you I finally got it all right. Cheers buddy.:highfive:

Help with device?

Got the lg g3 andriod version 6.0, software version d85230h, looking to root, know you cant do it marshmellow. Anyone know how to do it?. I tryed to downgrade but i cant go into download mode.
I personally downgraded to Lollipop using LGUP and a KDZ file. Then used the One Click Root (Newest Root Method in General section) and installed AutoRec to get an old TWRP version, then updated TWRP with a bumped 3.0.3.0. All good to go!
do you have a link to a tutorial on how to do that?
adzcache said:
I personally downgraded to Lollipop using LGUP and a KDZ file. Then used the One Click Root (Newest Root Method in General section) and installed AutoRec to get an old TWRP version, then updated TWRP with a bumped 3.0.3.0. All good to go!
Click to expand...
Click to collapse
you have a link to the tutorials for this?
No I just searched through the G3 forums here and read other people's posts.
1. Get LGUP and your KDZ, then downgrade.
2. Find a thread called 'Newest Root Method' in the General section and follow that thread - it's easy to do.
3. Dig up the AutoRec tool for you variant and install TWRP - Then upgrade TWRP, there is a thread with TWRP 3.0.3.0 in the G3 Android Development section.
Good luck.
adzcache said:
No I just searched through the G3 forums here and read other people's posts.
1. Get LGUP and your KDZ, then downgrade.
2. Find a thread called 'Newest Root Method' in the General section and follow that thread - it's easy to do.
3. Dig up the AutoRec tool for you variant and install TWRP - Then upgrade TWRP, there is a thread with TWRP 3.0.3.0 in the G3 Android Development section.
Good luck.
Click to expand...
Click to collapse
but i cant put my phone into download mode
Crunch99 said:
but i cant put my phone into download mode
Click to expand...
Click to collapse
Huh, not sure how I can help with that, should be able to hold volume up with the phone powered off and plug into your PC for download mode.
adzcache said:
Huh, not sure how I can help with that, should be able to hold volume up with the phone powered off and plug into your PC for download mode.
Click to expand...
Click to collapse
yea that doesnt work for me, i hold up on the volume and then plug the phone in
adzcache said:
Huh, not sure how I can help with that, should be able to hold volume up with the phone powered off and plug into your PC for download mode.
Click to expand...
Click to collapse
\
got it in download mode, done everything just an error. which kdz and dll did you use?
Crunch99 said:
\
got it in download mode, done everything just an error. which kdz and dll did you use?
Click to expand...
Click to collapse
You can use one of these.
http://storagecow.eu/index.php?dir=Xda/LG+G3/Stock/Canada+D852/MM+6.0/
Do you want a guide on how to downgrade,Root and also install TWRP?
Sotiris02 said:
You can use one of these.
http://storagecow.eu/index.php?dir=Xda/LG+G3/Stock/Canada+D852/MM+6.0/
Do you want a guide on how to downgrade,Root and also install TWRP?
Click to expand...
Click to collapse
got the downgrade one and rooted, just need the guide on twrp
Crunch99 said:
got the downgrade one and rooted, just need the guide on twrp
Click to expand...
Click to collapse
Here you go
https://forum.xda-developers.com/lg-g3/general/root-twrp-marshmallow-d855-30b-t3286268
Sotiris02 said:
Here you go
https://forum.xda-developers.com/lg-g3/general/root-twrp-marshmallow-d855-30b-t3286268
Click to expand...
Click to collapse
im on kit-kat now because i had to root, so is it the same steps?
Crunch99 said:
im on kit-kat now because i had to root, so is it the same steps?
Click to expand...
Click to collapse
Well yes auto rec works with every version of android till marshmallow.
Download that rar,unrar it flash TWRP with Autorec(app included in rar) in some words,follow that guide.
But if autorec doesn't work go over here and you will find and a kitkat version.
Sotiris02 said:
Well yes auto rec works with every version of android till marshmallow.
Download that rar,unrar it flash TWRP with Autorec(app included in rar) in some words,follow that guide.
Click to expand...
Click to collapse
perfect thanks
Sotiris02 said:
Well yes auto rec works with every version of android till marshmallow.
Download that rar,unrar it flash TWRP with Autorec(app included in rar) in some words,follow that guide.
But if autorec doesn't work go over here and you will find and a kitkat version.
Click to expand...
Click to collapse
installed CM13 and lost my root, dont think there is a way i can root again
Crunch99 said:
installed CM13 and lost my root, dont think there is a way i can root again
Click to expand...
Click to collapse
You have Root, go to Settings→About phone→click a lot of times Build number,till it shows "You have enabled development settings".Then go back at the nain screen of settings and you will see this "Developer opinions",click that and scroll down.You will see "Root Access" click on that and enable it.
Greetings.

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