Develop Bugs

New with Optimus G!

First of all,i want to say Hello to all community!
I`m the new owner of a lg optimus g.I`m from romania and i have instaled V10H firmware(i think are last,no?)
So,i have a few question for you guys if you wanna help me.I search,and i flash the firmware and after i root the phone.But after a restart,when it boot on the screen was appear "Security error" and phone turn off.So,my first question is:I can`t root the stock rom?
Thanks very much guys!

Hi.
No there is already 10i, but we don't know changelog's from LG, so probably nothing significant.
What method have you used? Root this phone it's very easy and you can find a couple of methods in development area.

rimsilva said:
Hi.
No there is already 10i, but we don't know changelog's from LG, so probably nothing significant.
What method have you used? Root this phone it's very easy and you can find a couple of methods in development area.
Click to expand...
Click to collapse
Hi!
10i?Where i can download please,cause i don`t find them and doesn`t appear when i search for updates on phone And how to flash correctly the firmwares,cause i find more options(first i use one with Lg mobile support tool and s&d tool who are more complicate but after appear the security error i try fo flash the firmware with kdz_fw_upd_en and works well).After second flash,i don`t try again to root,because i don`t to brick again.
For root i use ZV9-ZVB-Universal root.But i must to have unlocked bootloader or other trick for root stock rom?
Thanks for answer,sir!

buju001 said:
Hi!
10i?Where i can download please,cause i don`t find them and doesn`t appear when i search for updates on phone And how to flash correctly the firmwares,cause i find more options(first i use one with Lg mobile support tool and s&d tool who are more complicate but after appear the security error i try fo flash the firmware with kdz_fw_upd_en and works well).After second flash,i don`t try again to root,because i don`t to brick again.
For root i use ZV9-ZVB-Universal root.But i must to have unlocked bootloader or other trick for root stock rom?
Thanks for answer,sir!
Click to expand...
Click to collapse
10i version mentioned here: http://forum.xda-developers.com/showthread.php?t=2602193.
I don't know if KDZ is available but you can search in XDA or google. Maybe it's better to stay with 10H.
For update I've used several times KDZ_FW_UPD with no issue (follow this: http://forum.xda-developers.com/showpost.php?p=44874388&postcount=36)
I've used the zv9-ZVB-Universal-Root (attached), because it was necessary to changed the bat file, unlock bootloader is afterwards with FreeGee.
What is the version of your phone? Are using the right kdz?

rimsilva said:
10i version mentioned here: http://forum.xda-developers.com/showthread.php?t=2602193.
I don't know if KDZ is available but you can search in XDA or google. Maybe it's better to stay with 10H.
For update I've used several times KDZ_FW_UPD with no issue (follow this: http://forum.xda-developers.com/showpost.php?p=44874388&postcount=36)
I've used the zv9-ZVB-Universal-Root (attached), because it was necessary to changed the bat file, unlock bootloader is afterwards with FreeGee.
What is the version of your phone? Are using the right kdz?
Click to expand...
Click to collapse
I find the 10I kdz but not for my country.For a few others,maybe i will recive later.Yes,i think now i stay with 10H version.
To clarify me,for work root,it`s necesary to have unlocked bootloader?Or unlocked bootloader it`s my option after i rooted it.
With the files you give me for root i must follow the same procedure?Run CurrentRoot with phone in Only charge mode,after that change to MTP and Enter?
Thanks for the file and topics,are really useful and what exactly what i want and i don`t found.
EDITn lg firmwares official site on my country i have the V10H version.But now i download the lg official firmware,enter the IMEI and the app give me V10F version.And now i check the lg site again and V10F version are last for service provider where i bought the phone and V10H are without service provider name(EX:V10F for Orange/Romania and V10H for Romania).Can be this a problem?

No. Root is independent from bootloader, but to unlock bootloader with need to have root.
Yes, that is the procedure to run .bat file. .
I'm not sure about your country, is your phone from Orange/Romania? I think that you can install 10H, but not sure wait for other user confirmation or install 10F to test...

rimsilva said:
No. Root is independent from bootloader, but to unlock bootloader with need to have root.
Yes, that is the procedure to run .bat file. .
I'm not sure about your country, is your phone from Orange/Romania? I think that you can install 10H, but not sure wait for other user confirmation or install 10F to test...
Click to expand...
Click to collapse
I understand.Maybe first i did something wrong and that give that security error.I wil try again.
Yes,it`s from Orange/Romania,was a network lock phone but i decoded it with IMEI.I have the V10H and runs well,a just ask about the V10F version cause the Lg official firmware app show me that version to be the last and i think can be a problem with compatibility and that give me Security Error.Thanks very much for answers and for your patience

I´m new too.

I flash the rom again,and root it,restart a few times and works.But,after i unistall with Titanium Backup some apps who don`t use(google movie,books,music,lg note,email,smartshare,cell broadcast,google+,youtube,chrome) and restart,again appear the error with Security Error and phone don`t turn on.I don`t know,are something to do with root or are some apps that must don`t be unistall.But i didn`t unistall any other system aplications.What did you think,sir?

For sure it's an application issue, my advice is to google about system app that can be uninstalled.
You can also uninstall one by one to identify the ones that gives you security error.
Don't forget to do a backup first!

rimsilva said:
For sure it's an application issue, my advice is to google about system app that can be uninstalled.
You can also uninstall one by one to identify the ones that gives you security error.
Don't forget to do a backup first!
Click to expand...
Click to collapse
I found some topics here and i found cause i`m not alone,everyone has this problem when unistall stock apps.But i find the solution,i can turn off the apps from settings.Now i will try again to root but not unistall apps and see if appears again the error.Thanks a lot sir,you really helped me a lot!

Im new with an LG OG too and i tried to install the new vanir rom and now im stuck with a black screen, its seems that my phone works fine but my screen is all black. How do i fix it?

szevallos said:
Im new with an LG OG too and i tried to install the new vanir rom and now im stuck with a black screen, its seems that my phone works fine but my screen is all black. How do i fix it?
Click to expand...
Click to collapse
You can return back to stock with this usefull guide http://forum.xda-developers.com/showthread.php?t=2388440 (it works very well especially if you have a kdz>1GB ) or simply with KDZ updater( you find guide there http://forum.xda-developers.com/showthread.php?t=2010624 ).

I coundn't find the way to change the stock video player (which is quite buggy, slow and no option for full screen) in web browsers in CM11. It would be gread if we could choose for example MX player instead. Is there any solution to this? Thanks.
Послато са LG-E975 уз помоћ Тапатока

flashed tmobile firmware on and ls980 g2.. can i fix it? please help

I flashed a stock 4.4.2 t-mobile firmware to my sprint ls980.. is there anyway to get any ls980 firmware back on it? i use it for tmobile which is why i flashed it but seen a few threads on how to unlock the sim and now im stuck. did i ruin the phone? or could i at least get it to work through tmobile with the firmware i flashed? i cant even get it to connect to google play. wifi works tho

Sir,
Please wait until mods will move this thread to the device specific forum for more relevant answers.
Stand by
Good luck

First: Grab the ZVE Tot file
Second: Flash it in download mode.
Good luck, flashing in download mode is rather a pain to do.

G2 Ls980 with tmobile firmware
Fnord12 said:
First: Grab the ZVE Tot file
Second: Flash it in download mode.
Good luck, flashing in download mode is rather a pain to do.
Click to expand...
Click to collapse
I have tried flashing a stock sprint fw but it fails because Flashtool says the mobile phone I have is a tmobile model!!.

mikon73 said:
I have tried flashing a stock sprint fw but it fails because Flashtool says the mobile phone I have is a tmobile model!!.
Click to expand...
Click to collapse
There is a DLL file that is generic that should overcome that problem.

Facing the same problem..please help
I've also done the same thing just a little bit different.
i flashed D802 (international version) kdz file over my sprint g2 (Model is LS-980) but it does not work, when i turn on the phone I can't even complete the setup and the phone restarts. touch panel is also not working right.
Now i've downloaded the stock .tot rom for sprint version and trying to flash it using lg flash tool in download mode. But it does not flash it. It detects my phone as D802 and gives the error about the model number does not match
I need help getting it back to LS-980

looking for that lg g2 sprint generic .dll file
secret.animal said:
There is a DLL file that is generic that should overcome that problem.
Click to expand...
Click to collapse
Supposedly there's a stock .kdz which I can use to extract the .dll from, but I haven't found any stock .kdz file so far.
So, this generic .dll sounds great and one of my last options left. I'll appreciate if you can point me to that file. I'm going to try to find it.
Thanks a lot!!! :good:

https://docs.google.com/file/d/0B_F3sA56Gm2HMTVXejZla3R5RDg/edit?usp=docslist_api

Tried it but failed
secret.animal said:
docs.google.com/file/d/0B_F3sA56Gm2HMTVXejZla3R5RDg/edit?usp=docslist_api
Click to expand...
Click to collapse
I've tried this .dll file with both the stock ls980zvc and ls980zve .tot firmwares.
but the flash tool gives this error "CrossDL [D802] to [LS980]. SWversion"
Is there any way around this?

Success
Successfully fixed this problem. My phone is back to life again
I explained the complete problem and the process to fix it in this post:
http://forum.xda-developers.com/sprint-g2/help/solution-flashed-wrong-firmware-lg-g2-t3056632

tauheed90 said:
Suucessfully fixed this problem. My phone is back to life again
Click to expand...
Click to collapse
Share the love for anyone that does a search will find it without having to ask.

I'm restricted by xda
secret.animal said:
Share the love for anyone that does a search will find it without having to ask.
Click to expand...
Click to collapse
The procedure I used is described and explained in this post and as i am a new member here, xda restricts me to post external links his is the the best i could do
http://forum.xda-developers.com/sprint-g2/help/solution-flashed-wrong-firmware-lg-g2-t3056632

Please need help! Rooting

Can i root my lg g4 with this version? And how?

Sure. Perfectly. At least two different ways. If you do not need and care about device encryption just search for the low effort root in this LG G4 Forum original Android Development. Search for a flashable 10C rom.
If you need device encryption, go to LG unlock your bootloader officialy, flash TWRP and flash su.
Thread for this is right here in General G4. Called complete Guide to unlock & Flash H815 or similar.
Sent from outer space using telepathy

fpsq said:
Sure. Perfectly. At least two different ways. If you do not need and care about device encryption just search for the low effort root in this LG G4 Forum original Android Development. Search for a flashable 10C rom.
If you need device encryption, go to LG unlock your bootloader officialy, flash TWRP and flash su.
Thread for this is right here in General G4. Called complete Guide to unlock & Flash H815 or similar.
Sent from outer space using telepathy
Click to expand...
Click to collapse
If my phone stuck at lg logo what can i do then?

a bit more detail would be nice. What did you try to do?

fpsq said:
a bit more detail would be nice. What did you try to do?
Click to expand...
Click to collapse
Root

Please try KingRoot. Apk

ketan22 said:
Please try KingRoot. Apk
Click to expand...
Click to collapse
Kingroot doesn't work. Lol

Root Help
Given an Ig g4 h815 software version v10d to the system.rooted.h815v10c.img this file rooting this solution is possible http://forum.xda-developers.com/g4/...-tmo-vzw-intl-variants-soon-root-lg-t3164765?

xdaorxan said:
If my phone stuck at lg logo what can i do then?
Click to expand...
Click to collapse
Hi, unfortunately this happened to me (more than once) when I tried rooting the first time. You'll need to download the stock image files and the LG Flash Tool to start over from scratch. I'd link you but I don't have enough posts yet to be able to.
The trick is to make sure the rooted image file is over 4 gigs when extracted, I ran into issues multiple times where the download got corrupted along the way and ended up being a few hundred meg. Keep trying and once you get the right files the Low Effort Root is amazing.
Good luck and if you need any more help please let me know!

Downgrade from MM to LL with LGUP is possible!

Just wanted everybody to know that you CAN downgrade your MM LG G4 for Verizon by using LGUP.
And this is how...
1). Download all The Files Below!
1) Firmware Files - Click HERE!
Or Here LGKDZ.com for your exact match KDZ for your model
2) Download LG Drivers - LG Drivers Here - 10.9 Mb
2.1)Verizon Drivers (Verizon Only)LG_VZW - 7.8 Mb
3..LGUP can be found on this website LG UP DOWNOAD
You have to sign into one of your accounts and like the page for them to open the downloads in the middle of the page.
4. install the drivers then the .msi file for LGUP. Usually there is a DLL file and the LGUP application, install the .DLL file then install LGUP.
5. First make sure that your phone is showing up on LGUP, if not make sure you have USB debugging enabled and the you are connected with MTP.
6. Find your .kdz file, and don't press start VERY IMPORTANT!!, Exit out of the application and then REOPEN LGUP and your 13b.KDZ should still be in the box at the bottom.
7. Now just press start and wait for it to do it's magic.
And now your back on LL and you can get back to rooting this phone.
And just so people know it is not possible to downgrade from LL to KK, it will brick your phone for some reason, and trust me I had to send mine back and get a knew one, nothing would get it to work again!
So that's how you get back to LL from MM, which seems to be the only way to have root at the moment...
One more thing, I was able to transfer the files for the effortless root on MM but you can't do any send_command.exe commands because it just says FAIL. but it did switch the system software from Official to Modified so it did something just not what I wanted it to do....

If there's anyone wondering why this works, it's because both the 13b and 24c kdz's both have the same qfuse number, so the bootloader accepts both without bricking. If Verizon ever puts out an update that increments the qfuse value and you take it, you won't be able to downgrade to 13b or 24c.

I have the kdz file but it wont let me put it on lgup. It's looking for a .tot file. Help would be greatly appreciated
Nevermind. Figured it out

would this work with h811

mrewn said:
would this work with h811
Click to expand...
Click to collapse
This is the Verizon VS986 LG G4 section .

shoes22 said:
If there's anyone wondering why this works, it's because both the 13b and 24c kdz's both have the same qfuse number, so the bootloader accepts both without bricking. If Verizon ever puts out an update that increments the qfuse value and you take it, you won't be able to downgrade to 13b or 24c.
Click to expand...
Click to collapse
Thank you for the info! Just curious: how do you check the value of qfuse?

I did this on a Canadian variant H812 and it worked. Rooted right after and that worked too. I am a happy camper.
I loaded H81210n.
Anyone reading do note that I did not use the Verizon files above.
---------- Post added at 06:39 PM ---------- Previous post was at 06:34 PM ----------
duvelsuper said:
I have the kdz file but it wont let me put it on lgup. It's looking for a .tot file. Help would be greatly appreciated
Nevermind. Figured it out
Click to expand...
Click to collapse
What you must do is tick the update and select the kdz file. Then close LGUP, open it again and select refurbish and kdz file should be there. Start the load.
This phone with L and root is perfect. No M for me until root (if it happens). Really enjoy having the changed DPI with root and no permanent notification for Priority mode.

You can DL from here, without "liking" anything. http://www.droidopinions.com/download-lgup-tool/

Colchiro said:
You can DL from here, without "liking" anything. http://www.droidopinions.com/download-lgup-tool/
Click to expand...
Click to collapse
Or get it from this XDA thread: http://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803 where those other sites probably got it from .

divineBliss said:
Or get it from this XDA thread: http://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803 where those other sites probably got it from .
Click to expand...
Click to collapse
*edit* sorry did not mean to quote the person above me. I'm asking about actually getting from MM back to LP
Hate to ask this but has anyone verified this? I'm wanting to do this to mine tonight but I don't have near the experience a lot of others do here.

I did this without any problems at all
phonepie said:
*edit* sorry did not mean to quote the person above me. I'm asking about actually getting from MM back to LP
Hate to ask this but has anyone verified this? I'm wanting to do this to mine tonight but I don't have near the experience a lot of others do here.
Click to expand...
Click to collapse
I did this without any problems at all

It's very easy. Just load stock kdz with LGUP. I even rooted and all that after.
Sent from my LG-H812 using Tapatalk

tulio25 said:
I did this without any problems at all
Click to expand...
Click to collapse
thanks!
---------- Post added at 12:21 AM ---------- Previous post was at 12:20 AM ----------
milan187 said:
It's very easy. Just load stock kdz with LGUP. I even rooted and all that after.
Sent from my LG-H812 using Tapatalk
Click to expand...
Click to collapse
thanks!

silly question but will i lose all data on my phone if I do this?

stephen293 said:
silly question but will i lose all data on my phone if I do this?
Click to expand...
Click to collapse
I haven't done it just yet. And I know I'm not the smartest here. But to my knowledge yes you will lose everything. So always good to back up all your files. I've got all my photos backed up to google photos. over 5000 lol. But yeah from what I understand it's the same as doing a factory reset except instead of factory resetting back to MM you're factory resetting to LP.

stephen293 said:
silly question but will i lose all data on my phone if I do this?
Click to expand...
Click to collapse
(Request to a moderator below my response to stephen293)
OK, I did mine last night and using the refurbish mode as said does in fact delete all data.
((TO MODERATOR CAN WE GET THE ORIGINAL POST UPDATED TO INCLUDE THAT TO LOCATE THE KDZ FILE YOU NEED TO FIRST TICK THE UPGRADE CIRCLE)) I found it down the thread, But just figured it would be easier for others if it was included in the original post. Thanks

Big ups to everyone who made this happen!

Link not working kdz site down
Azweezey said:
Just wanted everybody to know that you CAN downgrade your MM LG G4 for Verizon by using LGUP.
And this is how...
1). Download all The Files Below!
1) Firmware Files - Click HERE!
Or Here LGKDZ.com for your exact match KDZ for your model
2) Download LG Drivers - LG Drivers Here - 10.9 Mb
2.1)Verizon Drivers (Verizon Only)LG_VZW - 7.8 Mb
3..LGUP can be found on this website LG UP DOWNOAD
You have to sign into one of your accounts and like the page for them to open the downloads in the middle of the page.
4. install the drivers then the .msi file for LGUP. Usually there is a DLL file and the LGUP application, install the .DLL file then install LGUP.
5. First make sure that your phone is showing up on LGUP, if not make sure you have USB debugging enabled and the you are connected with MTP.
6. Find your .kdz file, and don't press start VERY IMPORTANT!!, Exit out of the application and then REOPEN LGUP and your 13b.KDZ should still be in the box at the bottom.
7. Now just press start and wait for it to do it's magic.
And now your back on LL and you can get back to rooting this phone.
And just so people know it is not possible to downgrade from LL to KK, it will brick your phone for some reason, and trust me I had to send mine back and get a knew one, nothing would get it to work again!
So that's how you get back to LL from MM, which seems to be the only way to have root at the moment...
One more thing, I was able to transfer the files for the effortless root on MM but you can't do any send_command.exe commands because it just says FAIL. but it did switch the system software from Official to Modified so it did something just not what I wanted it to do....
Click to expand...
Click to collapse
Hey sorry but the www.lgkdz.com doesn't work. Is there another site we can find all lg firmware to downgrade for our exact lg variant match....

From OP second 1), try : http://storagecow.eu/index.php?dir=Xda/LG+G4/
or check the XDA G4 section for your variant.

Thank you for your response. I did actually download the H812 kdz from storagecow however when I put it in the LGUP tool it read as an error in the tot file. I'm not sure what happened or where I went wrong. I'm so confused at this point and without my G4 being unuseable at this time. I also wanted to ask if the kdz you directed me to are in fact the file I need to go back to LP from MM?

My LG G4 - LG-H815P locked in fastboot mode. It's hopeless, help please.

About two weeks and a few days, I bought an LG-H815P (used - came in the box, with the same IMEI number and voucher) Stockrom with root, as I could not upgrade because of root, I decided to install a modified rom. Then my problems started: the device had the message [secure boot error / error code: 1002]. So I decided to install a new stockrom, I downloaded the LG site, tried it first with [LGMobile Support Tool], it did not work I did with [LG Bridge] as the program itself sent. By an unfortunate distraction I believe I have installed the wrong version Stockrom. My device simply erased, did not give a sign of life. After following some tutorials on the internet I was able to recover it with [QFIL], I installed all the drives of the tutorial I followed, at the end of the process instead of going into download mode, it enters [fastboot mode] and does not leave it. I tried several times the procedure [volume up + plug the USB] for a second the image download mode appears, but soon it goes to screen [fastboot mode] and does not leave it, never.
Help Please
https://drive.google.com/file/d/1bmk0BfBLbF2ufQEkhh4RnzEFXB6LJN88/view?usp=sharing

anyone can help ??

fmmarotte said:
anyone can help ??
Click to expand...
Click to collapse
Hello, there is a program called LGUP. You can downgrade/upgrade android using this tool with your device kdz files. I would recommend to install same android version as it was before. Plus you can install custom roms only same android version as it was original. So i think that was the reason why you can't boot up your phone now.
Here is simple tutorial how to install and use this tool i mentioned before: https://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803
If there will be error during android installation i add .dll file to change with original one (its path: LGUP/models/ directory.)
I hope you succed. Cheers.

naujokaz said:
Hello, there is a program called LGUP. You can downgrade/upgrade android using this tool with your device kdz files. I would recommend to install same android version as it was before. Plus you can install custom roms only same android version as it was original. So i think that was the reason why you can't boot up your phone now.
Here is simple tutorial how to install and use this tool i mentioned before: https://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803
If there will be error during android installation i add .dll file to change with original one (its path: LGUP/models/ directory.)
I hope you succed. Cheers.
Click to expand...
Click to collapse
Thanks for the interest. I have this program, but it did not help. I send photos for you to see. Thanks again
https://photos.app.goo.gl/LKxPvT6anHDa53Uk9

fmmarotte said:
Thanks for the interest. I have this program, but it did not help. I send photos for you to see. Thanks again
https://photos.app.goo.gl/LKxPvT6anHDa53Uk9
Click to expand...
Click to collapse
There is easy fix for that my friend. Use UPPERCUT program to fix this problem for not showing your device.
Cheers.
Edit: Here is the link for that: https://forum.xda-developers.com/lg-g5/development/uppercut-lgup-loader-g5-variants-t3511295
No need to instal it, just run as superuser.