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...
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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

Roms for AT&T V495?

Are there any working ROMs or even recovery for the G Pad F 8 (V495)?
Sent from my Nexus 6 using XDA Free mobile app

Not at this moment. We need more people to be interested in such.
Fortunately, there's a recovery for the V496 (T-Mobile variant).
We need testing for the v495.
Look here.. Make sure to back up your exisiting recovery. Then flash this. If it works, make sure to reply here or at the other thread. If not, still let us know.
In the event we ever get roms, you wont be able to flash anything for a specific device that isn't v496. Atleast until someone rebuilds the recovery for your device.
In any event. I would like you to contact me so that I can walk you through a dump of all of your devices partitions, except the personal ones.

eriklion said:
Not at this moment. We need more people to be interested in such.
Fortunately, there's a recovery for the V496 (T-Mobile variant).
We need testing for the v495.
Look here.. Make sure to back up your exisiting recovery. Then flash this. If it works, make sure to reply here or at the other thread. If not, still let us know.
In the event we ever get roms, you wont be able to flash anything for a specific device that isn't v496. Atleast until someone rebuilds the recovery for your device.
In any event. I would like you to contact me so that I can walk you through a dump of all of your devices partitions, except the personal ones.
Click to expand...
Click to collapse
i have att v495 if u ever want me to try something

v495
terpin32 said:
i have att v495 if u ever want me to try something
Click to expand...
Click to collapse
i guess it is a start, as there has been no info on these tablets. i have one and really like it, but it would be nice to get rid of all the att bloatware. i have it unlocked and am using defense mobile for carrier but i cannot use it to tether or hotspot. looking forward to more info.

I have this device for US Cellular. I would really love to install CM rom on it. From my understanding the two problems are the locked bootloader that prevent us from installing a rom, and also there being no ROMs that support our version.

BossRoyce said:
I have this device for US Cellular. I would really love to install CM rom on it. From my understanding the two problems are the locked bootloader that prevent us from installing a rom, and also there being no ROMs that support our version.
Click to expand...
Click to collapse
Specifically, a locked bootloader also makes it either impossible or extremely difficult to have root, too, which of course is a prerequisite for installing anything custom.

Also to mention that you can root it with Kingroot but there is a good chance it will also brick it. I have v495 sitting here waiting for a proper KDZ.
I keep searching everyday hoping I see a KDZ pop up. Nothing as of yet. I just bought an nVidia K1 Shield to use in place of this thing for now. Maybe one day I will get it back working.

King root 4.6.2 will give you root on marshmallow but only till you reboot.. Would be happy to help out in the cause.

walk through
mpencexda said:
King root 4.6.2 will give you root on marshmallow but only till you reboot.. Would be happy to help out in the cause.
Click to expand...
Click to collapse
Can you walk me through what would be needed to get that root up? I tried it yesterday and it kept failing. I am trying to recovery data lost when a user profile was deleted. Many of those recovery apps need it and I would be eternally grateful

my device is alos bricked
badvs3vil said:
Also to mention that you can root it with Kingroot but there is a good chance it will also brick it. I have v495 sitting here waiting for a proper KDZ.
I keep searching everyday hoping I see a KDZ pop up. Nothing as of yet. I just bought an nVidia K1 Shield to use in place of this thing for now. Maybe one day I will get it back working.
Click to expand...
Click to collapse
waiting for the proper firmware for making my tablet working. If you got one, an you help me in that please

LG V495
Hello!
After unsuccessful firmware, I had the same problem as badvs3vil https://forum.xda-developers.com/showpost.php?p=67942420&postcount=29 blurred / damaged video screen.
I was flashing firmware from LG V490 using LGFlashTool2014.
As a result, immediately after the end of the firmware, stripes appeared on the tablet screen, and nothing was visible :crying:
There are sounds of charging, the tablet responds to touch.
Please help restore the tablet!

You can install LG-AK495 to fix it.

sanchezchu said:
You can install LG-AK495 to fix it.
Click to expand...
Click to collapse
How can i do this? Do you have detailed instructions?

It turned out to solve the problem with a distorted image on the screen. Here I downloaded the firmware:
LG G Pad F 8.0 UK495 Stock ROM Firmware (Flash File)
Download the official LG G Pad F 8.0 UK495 Stock ROM Firmware (Flash File) for your device. We also provide Stock ROM for other LG devices.
lgstockrom.com
LG_G_Pad_F_8.0_UK495_LGUK495_UK49520c_00_0718
After installation, the image is normal!!

So, I guess there's no custom roms for this thing, huh? That's a shame. The thing is super slow and running Android 6 with AT&T bloatware

MultiKoopa said:
So, I guess there's no custom roms for this thing, huh? That's a shame. The thing is super slow and running Android 6 with AT&T bloatware
Click to expand...
Click to collapse
Looks like it. I found this tablet sitting in my drawer and thought I'd flash some AOSP or similar custom ROM, but not happening.

LG E985 Optimus Pro Secure Booting Error! Cause: boot certification verify

Hi,
I have a LG prototype model LG 985. Phone had limited functionality so i tried to install GApps and some how it went wrong and Phone lands in Secure Booting Error.
I contacted LG support in India. they were not able to work on this phone because it doesn't have India IMEI and they don't have flash file for E985.
Now i am totally stuck in this. let me know how i can fix it. i am fine with LG flash or cynogen. i just need this phone active.
i went thru many thread but most of thread's link are not working. can someone provide me complete steps and working link ?
Thank you in advance and looking for positive response.
Thanks

mukesh_bhootra said:
Hi,
I have a LG prototype model LG 985. Phone had limited functionality so i tried to install GApps and some how it went wrong and Phone lands in Secure Booting Error.
I contacted LG support in India. they were not able to work on this phone because it doesn't have India IMEI and they don't have flash file for E985.
Now i am totally stuck in this. let me know how i can fix it. i am fine with LG flash or cynogen. i just need this phone active.
i went thru many thread but most of thread's link are not working. can someone provide me complete steps and working link ?
Thank you in advance and looking for positive response.
Thanks
Click to expand...
Click to collapse
Kdz

@mukesh_bhootra check the general session. There's a sticky thread about returning to stock. There you'll find a kdz filed for your e985. This thread is by Hyelton if I'm not wrong.

mukesh_bhootra said:
Hi,
I have a LG prototype model LG 985. Phone had limited functionality so i tried to install GApps and some how it went wrong and Phone lands in Secure Booting Error.
I contacted LG support in India. they were not able to work on this phone because it doesn't have India IMEI and they don't have flash file for E985.
Now i am totally stuck in this. let me know how i can fix it. i am fine with LG flash or cynogen. i just need this phone active.
i went thru many thread but most of thread's link are not working. can someone provide me complete steps and working link ?
Thank you in advance and looking for positive response.
Thanks
Click to expand...
Click to collapse
I fix my phone through flashing cyanogenmod and gapps. I wipe dalvik cache, cache, and system and start to flash it. Hope it help for you and im using lg g2 normally with it

anyone know what to do about this?

recently rooted my LG K10 and using a few root related apps, i turned off my phone and now i get this Boot Verification fail and saying the cause is MISMATCH_SIG_LEN does anyone know what to do to restore really wanna get this phone back to normal!

AngryUserLG said:
recently rooted my LG K10 and using a few root related apps, i turned off my phone and now i get this Boot Verification fail and saying the cause is MISMATCH_SIG_LEN does anyone know what to do to restore really wanna get this phone back to normal!
Click to expand...
Click to collapse
I have the same exact issue. Its when i tried to use kingroot as suggested in a previous post..

Are you able to boot into recovery or "download"/"update" modes? Any ADB access?
If you don't know how, try methods similar to the LG K7 or LG G3/G4 (they're a bit finicky).
Does a wipe/factory reset solve the issue?
Did you guys unlock the bootloader before trying to root?
This thread explains how to do that for the K7.
Read the part about oem unlock and bootloader unlock.
If you don't have access to recovery or "download" mode, you may have softbricked the device.
Checkout this thread about unbricking the G3.
Good luck and tread carefully! It's unlikely that the methods for other devices will work exactly the same. Don't flash anything onto your K10 that isn't meant for your specific model #. I might be more helpful when my K-428 gets here.

ianhyphen said:
Are you able to boot into recovery or "download"/"update" modes? Any ADB access?
If you don't know how, try methods similar to the LG K7 or LG G3/G4 (they're a bit finicky).
Does a wipe/factory reset solve the issue?
Did you guys unlock the bootloader before trying to root?
This thread explains how to do that for the K7.
Read the part about oem unlock and bootloader unlock.
If you don't have access to recovery or "download" mode, you may have softbricked the device.
Checkout this thread about unbricking the G3.
Good luck and tread carefully! It's unlikely that the methods for other devices will work exactly the same. Don't flash anything onto your K10 that isn't meant for your specific model #. I might be more helpful when my K-428 gets here.
Click to expand...
Click to collapse
ahh no for the oem unlock and for the bootloader and i could'nt factory reset it nor go into download mode and the situation kinda got resolved in the end for me

I'm having the same issue too. I Can't even get into recovery mode, it just keeps giving me the boot verification fail message and stays on the lg logo. I need help asap my dads gonna kill me if he finds out I tried rooting my phone!

AngryUserLG said:
ahh no for the oem unlock and for the bootloader and i could'nt factory reset it nor go into download mode and the situation kinda got resolved in the end for me
Click to expand...
Click to collapse
How did your issue get resolved, i've been experienced this before.

demig0d01 said:
How did your issue get resolved, I've been experienced this before.
Click to expand...
Click to collapse
funny thing is i was in the same boat as you rooted it and couldn't let my mom know,basically i returned and told em i shutted it off and turn it back on with that problem showing up they took it and gave it back to me so the only thing i can say is try using that one post here about unbricking the K10 here since now the drivers and stuff are on the T-mobile website and if that doesnt work did what i did return it

G4 Dead Software

I`ll keep it short: I rooted it, wanted to do flash something without unlocked Bootloader and now it wont start, and also the Download Mode doesnt work anymore...
So I just wanted to know, where is the Software saved on? Do I just have to buy a new Motherboard, some other parts or can I alredy sell the phone with no hope it will ever work again?

3OBO said:
I`ll keep it short: I rooted it, wanted to do flash something without unlocked Bootloader and now it wont start, and also the Download Mode doesnt work anymore...
So I just wanted to know, where is the Software saved on? Do I just have to buy a new Motherboard, some other parts or can I alredy sell the phone with no hope it will ever work again?
Click to expand...
Click to collapse
what did you try to flash.. ive flashed xposed on locked bootloader.. and does not show LG logo.? or it doesnt do anything.. does it shows as 9800

raptorddd said:
what did you try to flash.. ive flashed xposed on locked bootloader.. and does not show LG logo.? or it doesnt do anything.. does it shows as 9800
Click to expand...
Click to collapse
Secure booting Error!
Error Code : 1003
Thats what it shwos in the upper Left corner.

3OBO said:
Secure booting Error!
Error Code : 1003
Thats what it shwos in the upper Left corner.
Click to expand...
Click to collapse
i flashed several zips with locked bootloader qith root only never had this problem.. only time it showed security erro was when i deleted start up lg wizard.. but download worked and flashing KDZ worked to restore.. you have warranty.? try LG and see if they fix it.

raptorddd said:
i flashed several zips with locked bootloader qith root only never had this problem.. only time it showed security erro was when i deleted start up lg wizard.. but download worked and flashing KDZ worked to restore.. you have warranty.? try LG and see if they fix it.
Click to expand...
Click to collapse
Unfortunaly Download Mode doesn`t work... I do have warranty, but I dont think LG will even try to fix it, because it`s my fault. ..

3OBO said:
Unfortunaly Download Mode doesn`t work... I do have warranty, but I dont think LG will even try to fix it, because it`s my fault. ..
Click to expand...
Click to collapse
not sure if it will work tell them you used bridge to update firmware and it didnt finish.. i have heard people saying to use lg bridge and disconect .. search or make a new thread about telling them that.. so they may fix it good lock.

raptorddd said:
not sure if it will work tell them you used bridge to update firmware and it didnt finish.. i have heard people saying to use lg bridge and disconect .. search or make a new thread about telling them that.. so they may fix it good lock.
Click to expand...
Click to collapse
I´ll try that, because I guess thats the only thing I could do... Anyways, thank you for your help, I´ll let you know if they help me or not:fingers-crossed: