Database Users

[Q] Unable to boot Stock based ROMS [D800]

Hey everyone, sorry if this question has been answered already. I have sifted through pages and pages in this forum and haven't found a solution for my D800.
My G2 is rooted, with TWRP installed. I was successful in flashing Paranoid Android v4 beta 4, and 5. The problem arises when I try to flash LG Stock based ROMS. After TWRP says flashing was successful and I try to reboot, the screen shows LG logo for a second and turns blank!! That's it just a clear black screen, and the ROM doesn't boot at all.
The ROMs I tried and failed to boot:
1. Aeon
2. Korean stock based rom
3. Scott's CleanROM
4. Rayglobe 3.2
5. Rayglobe Flex ROM v4
Now, I know that sometime ROMs take time to boot on the first run, so I even tried leaving it at the blank screen for 15-20 mins with no result. Since it has been the same result for multiple ROMs, it definitely isn't a bad install or a bad ROM download either. I hope not
Is there anything I am missing in the steps? All ROMs were installed after factory resetting through TWRP (no dirty flash). I am baffled with this, please let me know if I need to revert to software version "d" for these ROMs to work?
TIA

vish9 said:
Hey everyone, sorry if this question has been answered already. I have sifted through pages and pages in this forum and haven't found a solution for my D800.
My G2 is rooted, with TWRP installed. I was successful in flashing Paranoid Android v4 beta 4, and 5. The problem arises when I try to flash LG Stock based ROMS. After TWRP says flashing was successful and I try to reboot, the screen shows LG logo for a second and turns blank!! That's it just a clear black screen, and the ROM doesn't boot at all.
The ROMs I tried and failed to boot:
1. Aeon
2. Korean stock based rom
3. Scott's CleanROM
4. Rayglobe 3.2
5. Rayglobe Flex ROM v4
Now, I know that sometime ROMs take time to boot on the first run, so I even tried leaving it at the blank screen for 15-20 mins with no result. Since it has been the same result for multiple ROMs, it definitely isn't a bad install or a bad ROM download either. I hope not
Is there anything I am missing in the steps? All ROMs were installed after factory resetting through TWRP (no dirty flash). I am baffled with this, please let me know if I need to revert to software version "d" for these ROMs to work?
TIA
Click to expand...
Click to collapse
Did you factory reset after as well? If I recall correctly Paranoid Android is AOSP. What kernel are you running?

sounds like you are onn the 10o update. You will need to flash back to stock 10d with lg flash tool and then root and install recovery again. Then you should be good to go on flashing roms. I know that some of the newest versions of TWRP and Philz have issues flashing some roms too so that may also be the cause. If you downgrade the recovery you have to the version right before it may fix your issue also

joebob296 said:
Did you factory reset after as well? If I recall correctly Paranoid Android is AOSP. What kernel are you running?
Click to expand...
Click to collapse
Exactly, AOSP ROMs are booting up fine but not the Stock based ones.. I am not flashing any kernels, just the ROM, so I'm assuming it will run on either the stock kernel or the kernel included in the ROM zip?
Have you been successful in installing such ROMs? Am I missing something in the wiping part? Only been doing the factory reset in TWRP before installing any ROM.

Check m
And make sure that you are running the stock kernel. Are you on the 10o update?
Sent from my LG-D801 using Tapatalk

rquiett said:
sounds like you are onn the 10o update. You will need to flash back to stock 10d with lg flash tool and then root and install recovery again. Then you should be good to go on flashing roms. I know that some of the newest versions of TWRP and Philz have issues flashing some roms too so that may also be the cause. If you downgrade the recovery you have to the version right before it may fix your issue also
Click to expand...
Click to collapse
Oh, I hadn't thought about anything being wrong with the recovery.. Always assumed it gets the work done
How do I find previous versions of TWRP compatible with D800?

joebob296 said:
Check m
And make sure that you are running the stock kernel. Are you on the 10o update?
Sent from my LG-D801 using Tapatalk
Click to expand...
Click to collapse
Yes I am on 10o.. Does it have issues with installing other Stock ROMs? If yes, I'll try to follow the thread on using LGFlash tools, I've never done that before. Hopefully its not much difficult to follow the instructions.

That is one of the easiest guides to follow. Be sure to follow the correct set of instructions(depends on carrier) and download the the 10d version.
Sent from my LG-D801 using Tapatalk

joebob296 said:
That is one of the easiest guides to follow. Me sure to follow the correct set of instructions(depends on carrier) and download the the 10d version.
Sent from my LG-D801 using Tapatalk
Click to expand...
Click to collapse
Thanks.. I'll try to do it tonight and post my results here.

joebob296 said:
Be sure to follow the correct set of instructions(depends on carrier) and download the the 10d version.
Sent from my LG-D801 using Tapatalk
Click to expand...
Click to collapse
I'm stuck in the process! Can't change the com port number to 41. The guide is pretty easy to understand. But when I put my phone is download mode and try to change the com port number, it says I don't have the write privileges for this device's setting. I've tried it on both Win 7 and Win 8 laptops, with LG mobility drivers installed.
Is there something in the phone settings I need to enable so that I get the write privileges to change com port number?

Do you have administrator privileges?
Sent from my LG-D801 using Tapatalk

SOLVED!
joebob296 said:
Do you have administrator privileges?
Sent from my LG-D801 using Tapatalk
Click to expand...
Click to collapse
Yay!!! Finally did it!
Issue 1: If faced with write privileges for com port (tried successfully in Win 8)
Solution: After going in to com port properties, click "change settings" and there is the option to change com port number.
Issue 2: Once the port number was changed to 41, rest of the instructions are easy to follow on this thread http://forum.xda-developers.com/showthread.php?t=2633150
Once on D80010d, I rooted with ioroot22, and installed recovery using FreeGee. Just installed Rayglobe 3.2 minutes ago, and it finally booted up!!!
So, the bottomline is that go back to D80010d if you wanna play with Stock based ROMs! I flashed with TWRP 2.6.3.3, so the fault is not with the recovery. That much I can confirm
Thanks for the suggestions guys. Thread solved I guess.

Great. Glad to hear it.
Sent from my LG-D801 using Tapatalk

rquiett said:
sounds like you are onn the 10o update. You will need to flash back to stock 10d with lg flash tool and then root and install recovery again. Then you should be good to go on flashing roms. I know that some of the newest versions of TWRP and Philz have issues flashing some roms too so that may also be the cause. If you downgrade the recovery you have to the version right before it may fix your issue also
Click to expand...
Click to collapse
Thanks for the input. Before I flashed back to D80010d today, I installed older versions of Philz and TWRP but neither helped. So downgrading was sort of a compulsion, in my case at least.

and the moral of the story is, unless you are getting an android version upgrade in the update, do not take the update.

[Q] D802T with a different KDZ??

As we know D802T does not support TWRP it goes into bootloop. Any one here from Australia with model D802T tried flashing with any other KDZ? if yes can u tell me which one and if there were any issues with it like baseband etc??
I want to install roms and not able to since i cant install recoveries on it..also is there a chance to sideload rom from adb?
Any suggestions are appreciated.
Thanks

Ash19_87 said:
As we know D802T does not support TWRP it goes into bootloop. Any one here from Australia with model D802T tried flashing with any other KDZ? if yes can u tell me which one and if there were any issues with it like baseband etc??
I want to install roms and not able to since i cant install recoveries on it..also is there a chance to sideload rom from adb?
Any suggestions are appreciated.
Thanks
Click to expand...
Click to collapse
What carrier are you on?
Sent from my LG-VS980 using XDA Free mobile app

Ash19_87 said:
As we know D802T does not support TWRP it goes into bootloop. Any one here from Australia with model D802T tried flashing with any other KDZ? if yes can u tell me which one and if there were any issues with it like baseband etc??
I want to install roms and not able to since i cant install recoveries on it..also is there a chance to sideload rom from adb?
Any suggestions are appreciated.
Thanks
Click to expand...
Click to collapse
The kdz flash will just fail. A lot of people have tried doing that, it just doesn't work. Also, the problem with autorec is that it flashes a patched kernel that doesn't work with your d802t firmware and will end up bricking it. The recovery does work though. So theoretically, if you flashed a custom rom right after flashing the recovery it should work. I don't have a d802t though so I can't test it.

NBreunig3 said:
What carrier are you on?
Sent from my LG-VS980 using XDA Free mobile app
Click to expand...
Click to collapse
Mine is unlocked and its a prepaid sim..I can use any carrier, though i am using Telstra..

Art Vanderlay said:
The kdz flash will just fail. A lot of people have tried doing that, it just doesn't work. Also, the problem with autorec is that it flashes a patched kernel that doesn't work with your d802t firmware and will end up bricking it. The recovery does work though. So theoretically, if you flashed a custom rom right after flashing the recovery it should work. I don't have a d802t though so I can't test it.
Click to expand...
Click to collapse
Well i have tried doing this as well installed a rom through it but still it wont boot up. Stuck on Lg logo..

is there any possibiltiy with adb sideloading?
is there any possibility with adb sideloading and installing new rom??
If yes, can anyone tell me how?

Ash19_87 said:
is there any possibility with adb sideloading and installing new rom??
If yes, can anyone tell me how?
Click to expand...
Click to collapse
That requires a custom recovery and flashing twrp through adb would require Loki which doesn't work on kit kat. It's disappointing that you couldn't flash a rom directly. Maybe you should try flashing an aosp rom like cm after autorec and then go from there. Otherwise, downgrading to jelly bean through a kdz flash is your only option. You just need to find some jb firmware first.

Art Vanderlay said:
That requires a custom recovery and flashing twrp through adb would require Loki which doesn't work on kit kat. It's disappointing that you couldn't flash a rom directly. Maybe you should try flashing an aosp rom like cm after autorec and then go from there. Otherwise, downgrading to jelly bean through a kdz flash is your only option. You just need to find some jb firmware first.
Click to expand...
Click to collapse
Another failed attempt i installed CM from TWRP and also flashed gapps..but its still stuck at bootloop Now i shall again install the original kdz again to use my phone..
Only option left now is finding a jelly bean kdz..and installing it..

Ash19_87 said:
Another failed attempt i installed CM from TWRP and also flashed gapps..but its still stuck at bootloop Now i shall again install the original kdz again to use my phone..
Only option left now is finding a jelly bean kdz..and installing it..
Click to expand...
Click to collapse
any luck finding the 4.2.2 kdz file? a link would be the best...

LG G2 no LTE in India
I have been searching xda forums like crazy for enabling lte on my lg g2 D802 in india.
I have flashed D802T india stock rom kdz (For working with band 40 in india) however getting only 3g signal and no 4G.
My phone model also shows as D802T instead of D802. The network settings is showing as GSM/WCDMA/ Lte (Auto) but no luck. Any help would be greatly appreciated

LG D-802T firmware issue
Tried flashing custom rom (CM13) after flashing recovery (TWRP) on my LG D-802T (Australian); it started off fine but then ended up bricking the phone: "Continuous LG logo"
Tried flashing it with UK open ROM, failed again.
Did The Australian D-802T stock ROM, worked...
So concluded that it doesn't support others.

ahsen101 said:
Tried flashing custom rom (CM13) after flashing recovery (TWRP) on my LG D-802T (Australian); it started off fine but then ended up bricking the phone: "Continuous LG logo"
Tried flashing it with UK open ROM, failed again.
Did The Australian D-802T stock ROM, worked...
So concluded that it doesn't support others.
Click to expand...
Click to collapse
By any chance do you still have Autorec apk for D802T ?

About LP bootstacks?

I have searched but do not understand LP bootstacks. Can someone tell me what is LP bootstacks? When I use it? By the way, what 4.2, 4.4 aboot? I am on stock lollipop with TWRP 2.8.7.1.

kennguy said:
I have searched but do not understand LP bootstacks. Can someone tell me what is LP bootstacks? When I use it? By the way, what 4.2, 4.4 aboot? I am on stock lollipop with TWRP 2.8.7.1.
Click to expand...
Click to collapse
Lollipop bootstack is just a bunch of files which are neccesary along the bootloader for functioning like download mode related files, modem/radio related files etc. And aboot is basically the bootloader.
So short, aboot is the bootloader and bootstack are the additional files along the bootloader.
Loki roms need 4.2 aboot. Bump works on 4.2 and 4.4. I suggest reading the OP's what you all need to use to let the rom function properly. Also use newer roms as the old roms are not all perfect with the old sourcecode.
Verstuurd vanaf mijn LG-D802 met Tapatalk

wulsic said:
Lollipop bootstack is just a bunch of files which are neccesary along the bootloader for functioning like download mode related files, modem/radio related files etc. And aboot is basically the bootloader.
So short, aboot is the bootloader and bootstack are the additional files along the bootloader.
Loki roms need 4.2 aboot. Bump works on 4.2 and 4.4. I suggest reading the OP's what you all need to use to let the rom function properly. Also use newer roms as the old roms are not all perfect with the old sourcecode.
Verstuurd vanaf mijn LG-D802 met Tapatalk
Click to expand...
Click to collapse
Is there any benefit of Bump mate?

kennguy said:
Is there any benefit of Bump mate?
Click to expand...
Click to collapse
Yes the benefit of bump.is that it works on both 4.2 and 4.4 and because its easier. No big other benefit really, only for devs mostly
Sent from my LG-D802 using Tapatalk

wulsic said:
Lollipop bootstack is just a bunch of files which are neccesary along the bootloader for functioning like download mode related files, modem/radio related files etc. And aboot is basically the bootloader.
So short, aboot is the bootloader and bootstack are the additional files along the bootloader.
Loki roms need 4.2 aboot. Bump works on 4.2 and 4.4. I suggest reading the OP's what you all need to use to let the rom function properly. Also use newer roms as the old roms are not all perfect with the old sourcecode.
Verstuurd vanaf mijn LG-D802 met Tapatalk
Click to expand...
Click to collapse
I have been wondering what a bootstack was too, even asked people!! No one ever replied, gotta love the G2 forums...
Thank you for the explanation!

Need Help Flashing Custom ROMS

Hi guys,
I'm a newbie in this rooting world. So please bear with me. I know this forum will help me solve my problems and answer my questions so here goes.
The problem is I can't flash any rom. I'm having this error
"E:Error executing updater binary in zip '/sdcard/Download/CM12/CM-12-20150802-NIGHTLY-D802.zip"
What I did was
-Rooted my phone
-Install AutoRec to install TWRP Recovery
-Install quickboot
-Reboot into recovery
_Update my TWRP recovery to 2.8.7.1 bumped
-Backed up my everything
-Wipe everything (except Internal Storage)
-Install CM12 alongside with GAPPS
Now everytime I flash a rom I end up with that error.
My device is
LG G2 D802 Rooted Running on 5.0.2 Stock ROM.
Can somebody help me please? It will be much appreciated.
Thanks XDA Members.
Can you also suggest some good ROMS compatible with my device?
Thank you.

I got exactly the same message on my d802.
Unfortunately, I wiped my system and it rebooted with a "security error" message. I had to restore a stock LP ROM using LG's Mobile Support Tool program.

@audit13 and @markl098 official cm12 might be still using the old loki method of installing so it will need the jellybean bootloader. Most of the times if you get that error you are using a rom which is using loki on a kitkat bootloader. I suggest to use nevax bootloader changer and flash the rom. You might also need another modem for it. Search it on the forum which modem you need for the official cm12, you probably need kitkat aosp modem from dr87.
I also suggest to look for the newer roms in the forum here in xda as most of them are all using new caf sourcecode and running on lollipop bootstack with bump. (Ofcourse kitkat bootloader)
Audit13 the security error probably happend because you wiped the system but the boot.img remained and loki isn't signing the boot.img with an lg key so it will result on kitkat bootloader in an security error. With bump that problem is fixed as the kernels are getting signed with an lg key. I hope you guys can flash now happy further with no probs
Verstuurd vanaf mijn LG-D802 met Tapatalk

I guess it not be a good idea to change mine then.
Verizon LG G2
- sent from LG G2 (doronize.com)

Thank you so much for your answer. I can't find much info on that regard. Things becoming more clear now. Can I ask one more question?
I was on stock, decide to try SlimSaber, which is quite nice by the way. So, I rooted my D800 and got TWRP. Then flashed Loki's lollipop bootstack (bootstack-d800-LP_30d-loki-signed.zip) recommended by OP and ROM and GAPPS. Everything works perfect. Now if I want go for 4.4.2 based stock ROM for example I should flash K.K bootstack before? I found this file - bootstack-d800-KK_20y-v1.1-blastagator-signed.zip. So is this mandatory always flash bootstack before upgrading downgrading, right? I can't find any detailed info on this in XDA unfortunately.
Thank you for your time.
Greetings.
wulsic said:
@audit13 and @markl098 official cm12 might be still using the old loki method of installing so it will need the jellybean bootloader. Most of the times if you get that error you are using a rom which is using loki on a kitkat bootloader. I suggest to use nevax bootloader changer and flash the rom. You might also need another modem for it. Search it on the forum which modem you need for the official cm12, you probably need kitkat aosp modem from dr87.
I also suggest to look for the newer roms in the forum here in xda as most of them are all using new caf sourcecode and running on lollipop bootstack with bump. (Ofcourse kitkat bootloader)
Audit13 the security error probably happend because you wiped the system but the boot.img remained and loki isn't signing the boot.img with an lg key so it will result on kitkat bootloader in an security error. With bump that problem is fixed as the kernels are getting signed with an lg key. I hope you guys can flash now happy further with no probs
Verstuurd vanaf mijn LG-D802 met Tapatalk
Click to expand...
Click to collapse

@wulsic, your suggestion worked perfectly. I am now running a custom LP ROM
Thank you, thank you, thank you.

Sorry my phone is in my pocket I didnt knew I posted something. Peace!

shrisha said:
Thank you so much for your answer. I can't find much info on that regard. Things becoming more clear now. Can I ask one more question?
I was on stock, decide to try SlimSaber, which is quite nice by the way. So, I rooted my D800 and got TWRP. Then flashed Loki's lollipop bootstack (bootstack-d800-LP_30d-loki-signed.zip) recommended by OP and ROM and GAPPS. Everything works perfect. Now if I want go for 4.4.2 based stock ROM for example I should flash K.K bootstack before? I found this file - bootstack-d800-KK_20y-v1.1-blastagator-signed.zip. So is this mandatory always flash bootstack before upgrading downgrading, right? I can't find any detailed info on this in XDA unfortunately.
Thank you for your time.
Greetings.
Click to expand...
Click to collapse
Ehhm. You can try it. The reason why is because the use of bootstacks became more since lollipop. You can try it. Perhaps it works else you could always autorec and then folllow the guide on how to flash. I can test it perhaps also for you later. Ofc with my d802 version but I am still underway from heading back so I can test jt only from wednesday
@audit13 no problem. :good: enjoy
Verstuurd vanaf mijn LG-D802 met Tapatalk

@audit13
Can you tell me how did you do it ? I'm really new to this.
Edit:
NVM, I figured it out. I just used the nevax's bootloader changer. Changed to JB Bootloader and now I can flash custom roms with no errors. Thank you @wulsic

[Q&A] LG G2 Bootstacks

Q&A for LG G2 Bootstacks
Some developers prefer that questions remain separate from their main development thread to help keep things organized. Placing your question within this thread will increase its chances of being answered by a member of the community or by the developer.
Before posting, please use the forum search and read through the discussion thread for LG G2 Bootstacks. If you can't find an answer, post it here, being sure to give as much information as possible (firmware version, steps to reproduce, logcat if available) so that you can get help.
Thanks for understanding and for helping to keep XDA neat and tidy!

Rashed97 said:
Should be the same key combo. I use the same on on my D802
Click to expand...
Click to collapse
so the D802 BUMPed zip is also JB bootloader,right? I compared the aboot.bin of the bump one with the loki one, it's the same MD5. Could you please replace the JB bootloader in bump zip to KK bootloader? Because if we need JB bootloader we will flash the loki zip instead of the bump one,but if we need KK bootloader we have nothing to flash.

tblinshi1234 said:
so the D802 BUMPed zip is also JB bootloader,right? I compared the aboot.bin of the bump one with the loki one, it's the same MD5. Could you please replace the JB bootloader in bump zip to KK bootloader? Because if we need JB bootloader we will flash the loki zip instead of the bump one,but if we need KK bootloader we have nothing to flash.
Click to expand...
Click to collapse
Sure, thanks for pointing it out
Sent from my HTC One M9 using Tapatalk

Can I flash one of the two bootstack independently from the bootloader that I' m using right now? Because I' m running KK bootloader and I dont' t understood if I can flash the bootstack with JB bootloader without troubles

ironmaiden97 said:
Can I flash one of the two bootstack independently from the bootloader that I' m using right now? Because I' m running KK bootloader and I dont' t understood if I can flash the bootstack with JB bootloader without troubles
Click to expand...
Click to collapse
Yeah it doesn't matter
Sent from my SM-P607T using Tapatalk

I have cloudy g2 3.3 5.0.2
If I want flash cm 12.1 muat flash boot stack
Loki or bump?

Hello, I'm running cm12.0 on ls980 . came from stock kk , used autorec , recovery is now 2.8.6.1. So I assume I need to flash the kk bootstack. If that's correct, do I flash bootstack first then cm12.1? Do I need to wipe cache after flashing bootstack and before flashing 12.1. Or do I not wipe cache at all? And do I need a different gapps then what I've been using for 12.0? So sorry for being a pain. Thanks in advance
Sent from my Lenovo TAB S8-50F using XDA Free mobile app

purpleurkle said:
Hello, I'm running cm12.0 on ls980 . came from stock kk , used autorec , recovery is now 2.8.6.1. So I assume I need to flash the kk bootstack. If that's correct, do I flash bootstack first then cm12.1? Do I need to wipe cache after flashing bootstack and before flashing 12.1. Or do I not wipe cache at all? And do I need a different gapps then what I've been using for 12.0? So sorry for being a pain. Thanks in advance
Sent from my Lenovo TAB S8-50F using XDA Free mobile app
Click to expand...
Click to collapse
Or can somebody possibly tell me what bootloader I have. Kk or jb?
Sent from my LG-LS980 using XDA Free mobile app

I'm running AICP 5.1.1 on my LS980. The only thing other than the ROM and gapps that I ever had to flash was a modem. What is a bootstack? Would it improve my experience? If so, which one should I flash?

wich one i have or how doi check. i had lollipop 5.0.2 d800 30c i think..now on cloudy 3.3

not sure what to do
ok so let me start off with that i am sorry if this answer can be found on another forum or has been already answered, i have been looking for hours and have not found an answer. so the question is what happens if the bootstack fails to flash what steps can i take to fix this? and if my LG G2 doesn't boot after flashing this would there be a way to fix that? btw i wouldn't like to have to get a jtag repair if i mess this up. thanks in advance!

Hi guys.. I have a question. I am on cloudy g2 3.3 and i want to try CM 13.. I have done a full backup or the rom. If, after the flash of CM, I would go back to cloudy, have I to flash some bootstack or bootloader?
Inviato dal mio LG-D802 utilizzando Tapatalk

Dear Helper,
This question might not belong here, but I'm looking for an experienced response.
I was on cloudyG2 2.2 KK on LG G2 D800 (AT&T). Updated bootloader to "bootstack-d800-KK_20y-v1.1-blastagator-signed.zip" via TWRP 2.8.7.1 and then flashed CloudyG2 3.3 LP. Now facing a problem which is;
When I reboot the phone from within the OS or turn it on from an off state, it goes into a bootloop on LG logo, every time. I then have to enter TWRP via hardware button combo and reboot system from within TWRP and only then the phone boots into OS. Besides the bootloop, the phone is working perfectly on Cloudy once in the OS.
Where did I go wrong? Did I flash something that I shouldn't have? Did I break something? Any way I can fix it?
Any help will be appreciated.