Database Develop

[Q] LG P990 Keep Rebooting before going Splash Screen

Hi.
I have LG p990 and it is a rooted mobile and i have tried several CM builds. i was running CM7 build from one month . Today when i tried to power off and than tried to Boot in Recovery mode it didn't booted instead it turn off just shows LG logo and even didnt go to splash screen. even if i try to boot in recovery mode it still do same i tried putting out battery but all in vein . i am very desper from it Please any solution.

cheeta123 said:
Hi.
I have LG p990 and it is a rooted mobile and i have tried several CM builds. i was running CM7 build from one month . Today when i tried to power off and than tried to Boot in Recovery mode it didn't booted instead it turn off just shows LG logo and even didnt go to splash screen. even if i try to boot in recovery mode it still do same i tried putting out battery but all in vein . i am very desper from it Please any solution.
Click to expand...
Click to collapse
Download this and use SmartFlashTool to flash this. It will unbrick your phone but beware you will lose all your data.
Code:
http://forum.xda-developers.com/showthread.php?t=1715272

kalpak2021 said:
Download this and use SmartFlashTool to flash this. It will unbrick your phone but beware you will lose all your data.
Code:
http://forum.xda-developers.com/showthread.php?t=1715272
Click to expand...
Click to collapse
I downloaded the zip and SmartFlashTool, SmartFlashTool won't detect my device . I have properly installed my Mobile driver. if my mobile does't proceed more than starting screen how it will detect my mobile

It worked at last
cheeta123 said:
I downloaded the zip and SmartFlashTool, SmartFlashTool won't detect my device . I have properly installed my Mobile driver. if my mobile does't proceed more than starting screen how it will detect my mobile
Click to expand...
Click to collapse
I found that the given steps won't work with Windows 7 but with Windows XP they worked

cheeta123 said:
Hi.
I have LG p990 and it is a rooted mobile and i have tried several CM builds. i was running CM7 build from one month . Today when i tried to power off and than tried to Boot in Recovery mode it didn't booted instead it turn off just shows LG logo and even didnt go to splash screen. even if i try to boot in recovery mode it still do same i tried putting out battery but all in vein . i am very desper from it Please any solution.
Click to expand...
Click to collapse
Download the mobile driver again, and follow the instructions correctly. Like, removing the battery, press volume down while plugging in until the s/w update screen appears, etc etc. Good luck! Hope it'll boot after the flash.
Sent from my Optimus 2X

Mark
I've a similar-ish issue. I've got CWM installed and can boot into CWM ok. My problem was that I tried to install a ROM (MIUI) and the install had no errors, but when the phone was powered on it hung at the MIUI screen.
So I reverted to a backup successfully and decided to have another go (same problem). This time, after I restore to the backup (which is installed without error by CWM) I can't can't past the initial LG screen. Seems to go into reboot loop.
Any thoughts anyone? If I can get into CWM ok and have a working restore then is there something I'm doing wrong!!
thanks,
Mark

[SOLVED][ERROR] Device stuck on boot! Error: Boot Image Signature

Guys,
I'm relatively new to flashing recovery and ROMs..
So, sorry if this is a noob question..
I really need urgent help!
I am on V20a (ESA-XXX) and have successfully rooted my phone.
I tried installing CWM using this method..
http://forum.xda-developers.com/showthread.php?t=2180138
I used the unsecure boot provided by gordon0001
http://forum.xda-developers.com/showthread.php?p=39918805&highlight=unsecure#post39918805
After i restarted my phone, it got stuck at boot!!
Its gives the following error and turns of in 5 seconds..
[LG-Security] Error: Boot Image Signature!
The phone doesn't start and does not go into recovery either..
The phone is not even recognised by my PC.. keeps restarting (to error screen) if i connect to pc..
Please, someone help me.. I'm really scared.. I don't want to lose my phone.. :crying:
I read a similar prob, but no solution found..
http://forum.xda-developers.com/showthread.php?t=2223697
PLEASE HELP!!
SOLUTION:
Reflash .kdz via Software Upgrade Mode (hold Power button and Volume - )

Dude, reflashing your phone should work. As long as SW mode is still accessible, your phone isn't dead yet. Follow the instructions on this post http://forum.xda-developers.com/showthread.php?p=35971349 Be freaking sure all necessary drivers are properly installed.
Or you can put your phone in recovery mode (power + vol +) and reinstall the stock rom using recovery LG tools providing your Internet connection is fast and stable
Sent from my LG-P880 using Tapatalk 2

hey dude, i have flashed 7 times exactly since this morning only. and i have gotten that error 3 times of those 7. so it should not be a problem

Thanks!
After a few attempts, was able to go to the s/w upgrade mode.. (power + vol(-) )
Reflashed .kdz and it's all good.. (had to root again)
Actually, i was freaked out more coz it's my new phone and i didn't find others with the problem..
I hope that this thread would help if anyone faces a similar problem in the future..
Thanks for the prompt response, guys!

TechnoBraker said:
After a few attempts, was able to go to the s/w upgrade mode.. (power + vol(-) )
Reflashed .kdz and it's all good.. (had to root again)
Actually, i was freaked out more coz it's my new phone and i didn't find others with the problem..
I hope that this thread would help if anyone faces a similar problem in the future..
Thanks for the prompt response, guys!
Click to expand...
Click to collapse
You don't read a lot, right?...
If I had 100€ for each user that had that same problem...
(thinking about 1€, hummm?... of course not, 100's better)

TechnoBraker said:
Guys,
I'm relatively new to flashing recovery and ROMs..
So, sorry if this is a noob question..
I really need urgent help!
I am on V20a (ESA-XXX) and have successfully rooted my phone.
I tried installing CWM using this method..
http://forum.xda-developers.com/showthread.php?t=2180138
I used the unsecure boot provided by gordon0001
http://forum.xda-developers.com/showthread.php?p=39918805&highlight=unsecure#post39918805
After i restarted my phone, it got stuck at boot!!
Its gives the following error and turns of in 5 seconds..
[LG-Security] Error: Boot Image Signature!
The phone doesn't start and does not go into recovery either..
The phone is not even recognised by my PC.. keeps restarting (to error screen) if i connect to pc..
Please, someone help me.. I'm really scared.. I don't want to lose my phone.. :crying:
I read a similar prob, but no solution found..
http://forum.xda-developers.com/showthread.php?t=2223697
PLEASE HELP!!
SOLUTION:
Reflash .kdz via Software Upgrade Mode (hold Power button and Volume - )
Click to expand...
Click to collapse
But WHY AND HOW did it happen? have you flashed a custom rom now without errors?

GeBoe said:
But WHY AND HOW did it happen? have you flashed a custom rom now without errors?
Click to expand...
Click to collapse
You needed to unlock bootloader first, either "adb reboot oem-unlock" or download terminal emulator, root the phone and type:
su
echo 40000000c8 > /sys/firmware/fuse/odm_reserved
Sent from my rooted P880

I solved the problem flashing back to stock rom.
From this page http://lg-phone-firmware.com/ you may download your original stock rom.
WARNING: IF YOU FLASHED YOUR PHONE WITH A CUSTOM ROM, NEVER TRY TO FLASH BACK TO AN ORIGINAL STOCK ROM.

askinkoc said:
I solved the problem flashing back to stock rom.
From this page http://lg-phone-firmware.com/ you may download your original stock rom.
WARNING: IF YOU FLASHED YOUR PHONE WITH A CUSTOM ROM, NEVER TRY TO FLASH BACK TO AN ORIGINAL STOCK ROM.
Click to expand...
Click to collapse
And once again:
flashing stock is not at all dangerous. it will not brick your device or something else.
Sometimes you even have to re-stock your phone.

Stock is safe!
askinkoc said:
I solved the problem flashing back to stock rom.
From this page http://lg-phone-firmware.com/ you may download your original stock rom.
WARNING: IF YOU FLASHED YOUR PHONE WITH A CUSTOM ROM, NEVER TRY TO FLASH BACK TO AN ORIGINAL STOCK ROM.
Click to expand...
Click to collapse
haha, flashing the stock rom back can never be a problem..
that is the only rom which inherently supposed to be problem-free!

@non4 said:
You needed to unlock bootloader first, either "adb reboot oem-unlock" or download terminal emulator, root the phone and type:
su
echo 40000000c8 > /sys/firmware/fuse/odm_reserved
Sent from my rooted P880
Click to expand...
Click to collapse
just tried this ^^^ worked thanks
Had the exact same problem as TechnoBraker however if you held the power button as the phone turned to "power save" and you timed it perfectly it would start normally and as long as i didnt try to go into recovery mode it was fine

Hello. PLEASE, can anyone help me, I have a LG 4x and I've tried to flash CWM image from here http://forum.xda-developers.com/showthread.php?t=2298420 but I cannot entry after that in Software Update ( Volume - and Power button) and not even with (Volume + Home and Power Button). I get this error [LGE _SECURITY]error: boot image signature
[LGE _SECURITY]5 seconds after power is turned off for power saving
My phone start very well, I can talk from him but I can not make Factory Reset and flash back the stock rom.
Sorry for my english and I hope someone can help me!
Thank you!

alexxutzu said:
Hello. PLEASE, can anyone help me, I have a LG 4x and I've tried to flash CWM image from here http://forum.xda-developers.com/showthread.php?t=2298420 but I cannot entry after that in Software Update ( Volume - and Power button) and not even with (Volume + Home and Power Button). I get this error [LGE _SECURITY]error: boot image signature
[LGE _SECURITY]5 seconds after power is turned off for power saving
My phone start very well, I can talk from him but I can not make Factory Reset and flash back the stock rom.
Sorry for my english and I hope someone can help me!
Thank you!
Click to expand...
Click to collapse
you installed cwm without unlocking bootloader. re-flash 20a/20b (jellybean 4.1.2) kdz, then unlock your bootloader, then install any custom recovery you want/need

Have i go bak to JB anytime?
Flying_Bear said:
you installed cwm without unlocking bootloader. re-flash 20a/20b (jellybean 4.1.2) kdz, then unlock your bootloader, then install any custom recovery you want/need
Click to expand...
Click to collapse
HEy
I have a question:
Have I flash to JB back anyway or can I only Unlock my BL and then it will work?
Sry my English is very bad

mivoe99 said:
HEy
I have a question:
Have I flash to JB back anyway or can I only Unlock my BL and then it will work?
Sry my English is very bad
Click to expand...
Click to collapse
Bootloader unlocking is only available if you're on JB. If your boot image is faulty you need to revert back to official JB.
Sent from my LG-P880 using XDA Premium 4 mobile app

Ok, but I haven't installed a cousom ROM
Omario-242 said:
Bootloader unlocking is only available if you're on JB. If your boot image is faulty you need to revert back to official JB.
Sent from my LG-P880 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I havent' installed a cusotm ROM yet. I have only installed CWM with ROM Manager, but i have already tried to delete the CWM I want to flash it manual.
My ROM is the normal LG P880 ROM JB.
How or have I go back to the normal JB?
Sry for my English I'm german

mivoe99 said:
I havent' installed a cusotm ROM yet. I have only installed CWM with ROM Manager, but i have already tried to delete the CWM I want to flash it manual.
My ROM is the normal LG P880 ROM JB.
How or have I go back to the normal JB?
Sry for my English I'm german
Click to expand...
Click to collapse
German here too
So if I understood you right, you tried to install CWM without unlocking your boot loader? So now you got a boot image error? I'd suggest to try LG Mobile Support Tool and flash V20A/V20B and then unlock Boot loader. Even if you're on "official JB" as of now, installing CWM without unlocked bootloader screwed your boot image and there's no way to do anything without flashing back a kdz.
Sent from my LG-P880 using XDA Premium 4 mobile app

LG Mobil Support Tool doesn't work
Omario-242 said:
German here too
So if I understood you right, you tried to install CWM without unlocking your boot loader? So now you got a boot image error? I'd suggest to try LG Mobile Support Tool and flash V20A/V20B and then unlock Boot loader. Even if you're on "official JB" as of now, installing CWM without unlocked bootloader screwed your boot image and there's no way to do anything without flashing back a kdz.
Sent from my LG-P880 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Hey,
I have tried to do the Update to the Firmware by LG Mobile Support Tool but there is a Error every try. I have tried it about ten times but the Update fails every time. What can I do now? :/
There is no Error Code or something.
Can help a factory reset there?
Or should i falsh the Original Recovery with the All-in-One toolkit?

mivoe99 said:
Hey,
I have tried to do the Update to the Firmware by LG Mobile Support Tool but there is a Error every try. I have tried it about ten times but the Update fails every time. What can I do now? :/
There is no Error Code or something.
Can help a factory reset there?
Or should i falsh the Original Recovery with the All-in-One toolkit?
Click to expand...
Click to collapse
Could be due to wrong drivers. Reinstall them and try again.
Sent from my LG-P880 using XDA Premium 4 mobile app

Reinstalled Drivers
Omario-242 said:
Could be due to wrong drivers. Reinstall them and try again.
Sent from my LG-P880 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Hey,
I have reinstalled the drivers for my device, but the installation failed again.
What can I do else? :/

i dont know flash kdz ( ithink my device got bricked)

İ help to flash kdz my phone . I want to tell my troubleshooting. Fırst I rooted phone next I unlocked the bootloader and Installed cwm recovery
But I did wrong thing I touched to reboot into Fınally My phone restarting but it is staying in starting lg icon dont open please helpppppp !!!!:crying::crying::crying::crying::crying::crying:

life4lg said:
İ help to flash kdz my phone . I want to tell my troubleshooting. Fırst I rooted phone next I unlocked the bootloader and Installed cwm recovery
But I did wrong thing I touched to reboot into Fınally My phone restarting but it is staying in starting lg icon dont open please helpppppp !!!!:crying::crying::crying::crying::crying::crying:
Click to expand...
Click to collapse
Once you have the cwm power+volume down press together and wait till cwm shows up. Then you can use as you probably planned to do with onlocking and flashing cwm.
On your pc you can download rom and transfer via usb /mount usb or smth like that
Then follow instructions of rom devs to install.

If that doesn't seem to work, you should force an update through the LGMobile Support Tool. Then start over again. You probably didn't unlock your bootloader properly (you can check it in the hidden menu or in S/W Upgrade mode), or you flashed a wrong recovery.. Good luck
Sent from my Nexus 7 using xda app-developers app

I have a paperweights, help...

I have root and unlocked bootloader. I did an update of lg and thereafter blocked, do not know if this was the problem.
Install the CWM by room (room enox iodak08 +), I can enter the bootloader, installing, when reboot the sistem entering the boot but does not start with the system and back to CWM after being taken. I can not get into the room and I can get into CWM. I've done factory reset and wipecache, I returned instal to the room, and nothing, enters the boot but does not start with the room.
I'm in a tricky situation, I stopped to have a mobile phone and I stick one paperweights. Need a little help.

Manholas said:
I have root and unlocked bootloader. I did an update of lg and thereafter blocked, do not know if this was the problem.
Install the CWM by room (room enox iodak08 +), I can enter the bootloader, installing, when reboot the sistem entering the boot but does not start with the system and back to CWM after being taken. I can not get into the room and I can get into CWM. I've done factory reset and wipecache, I returned instal to the room, and nothing, enters the boot but does not start with the room.
I'm in a tricky situation, I stopped to have a mobile phone and I stick one paperweights. Need a little help.
Click to expand...
Click to collapse
As always - flash a kdz and start from scratch if you can't get it working. And ... SEARCH

SimonTS said:
As always - flash a kdz and start from scratch if you can't get it working. And ... SEARCH
Click to expand...
Click to collapse
I can not get the pc to recognize the phone. I already have the KDZ file (V20A_00.kdz)

Manholas said:
I can not get the pc to recognize the phone. I already have the KDZ file (V20A_00.kdz)
Click to expand...
Click to collapse
Install or reinstall latest drivers from LG and try again when it does'nt work change usb port or try it on other PC.
Good Luck..

as I am in CWM recovery, removed the sd card and put a room.zip and flash. Did the installation but when "reboot sistem" back to cwm recovery.

The problem is that the Phone was locked into CWM recovery. And I have no way to recognize the phone on PC. Is there any way to unlock the CWM recovery v6.0.4.5?

Manholas said:
The problem is that the Phone was locked into CWM recovery. And I have no way to recognize the phone on PC. Is there any way to unlock the CWM recovery v6.0.4.5?
Click to expand...
Click to collapse
no. boot into s/w mode and flash kdz. there are plenty of guides. if your pc cant detect your phone while it's in s/w mode, then reinstall drivers

Manholas said:
The problem is that the Phone was locked into CWM recovery. And I have no way to recognize the phone on PC. Is there any way to unlock the CWM recovery v6.0.4.5?
Click to expand...
Click to collapse
As you stated in your first post...
Manholas said:
I have root and unlocked bootloader. I did an update of lg and thereafter blocked, do not know if this was the problem.
Click to expand...
Click to collapse
It has been stated time and time again that your must NEVER carry out a vendor OTA on a rooted or modified device. It causes a problem 90% of the time as the OTA has no flexibility to deal with something it isn't expecting to find - so you get exactly what you have.
Just be thankful that it is almost impossible to hard-brick our device or you really would have a paperweight. Instead you just need to search and read a little to get it back up and running.

Flying_Bear said:
no. boot into s/w mode and flash kdz. there are plenty of guides. if your pc cant detect your phone while it's in s/w mode, then reinstall drivers
Click to expand...
Click to collapse
If you turn on the mobile it goes into CWM recovery. The problem is that the Phone was locked into CWM recovery. And I have no way to recognize the phone on PC. Is there any way to unlock the CWM recovery v6.0.4.5?

SimonTS said:
As you stated in your first post...
It has been stated time and time again that your must NEVER carry out a vendor OTA on a rooted or modified device. It causes a problem 90% of the time as the OTA has no flexibility to deal with something it isn't expecting to find - so you get exactly what you have.
Just be thankful that it is almost impossible to hard-brick our device or you really would have a paperweight. Instead you just need to search and read a little to get it back up and running.
Click to expand...
Click to collapse
Ok, thanks for the warning was a real oversight. But, .. and help. I'm just locked into CWM recovery and I can not enter the phone otherwise. thanks

Flying_Bear said:
no. boot into s/w mode and flash kdz. there are plenty of guides. if your pc cant detect your phone while it's in s/w mode, then reinstall drivers
Click to expand...
Click to collapse
Manholas said:
Ok, thanks for the warning was a real oversight. But, .. and help. I'm just locked into CWM recovery and I can not enter the phone otherwise. thanks
Click to expand...
Click to collapse
As @Flying_Bear has already said to you...

Manholas said:
Ok, thanks for the warning was a real oversight. But, .. and help. I'm just locked into CWM recovery and I can not enter the phone otherwise. thanks
Click to expand...
Click to collapse
You need to get your PC to recognise the phone, thats the first step in this repair (unless the usb port is broken, there's no reason why it wont recognise, whats your OS and version, usb 2 or 3?)
why not put cm10.1 on a microsd and flash it from there?

JoinTheRealms said:
You need to get your PC to recognise the phone, thats the first step in this repair (unless the usb port is broken, there's no reason why it wont recognise, whats your OS and version, usb 2 or 3?)
why not put cm10.1 on a microsd and flash it from there?
Click to expand...
Click to collapse
it still won't work, after upgrading it ota while having custom recovery installed, a person will be locked to recovery for some reason (atleast other people were). the only way to fix it that i know of is to reflash a kdz
Manholas said:
If you turn on the mobile it goes into CWM recovery. The problem is that the Phone was locked into CWM recovery. And I have no way to recognize the phone on PC. Is there any way to unlock the CWM recovery v6.0.4.5?
Click to expand...
Click to collapse
cmon, pay some attention you don't need to turn on the phone, or boot into the system itself to boot into s/w mode. now, there are tons (like 3 or 4 guides, plus many other topics opened by people with exact same problem like you) threads that tell you what to do (hint: figure out how to boot into s/w mode), so i'll let you search around for the guide.

I suggest using this method: http://forum.xda-developers.com/showthread.php?t=2682146
It's easier, faster and safer than flashing a .kdz file. (Plus, it tells you how to get into the s/w upgrade mode!)
Greetings from my Nexus 7 FHD!

balloon27 said:
I suggest using this method: http://forum.xda-developers.com/showthread.php?t=2682146
It's easier, faster and safer than flashing a .kdz file. (Plus, it tells you how to get into the s/w upgrade mode!)
Greetings from my Nexus 7 FHD!
Click to expand...
Click to collapse
I think this method also flashes a kdz, but does it automatically for you. But yeah, this one is easier than manually flashing. Thanks for posting it
Also, thiy method will format internal sd card. My suggestion is to do a data/system format from cwm before you go in to flashing a kdz, either manually or automatically, so you don't end up with formatted internal sd card

A big thanks to SimonTS, JoinTheRealms, Flying_Bear and balloon27. This is a fantastic forum and you guys are spectacular. Due to professional reasons only going back to the forum after seven days, I go to the sea and I'm without net. Got this getaway just to thank you for the care provided, the mobile phone is the same and will just touch it after a week. Once again, thank you very much.

I just make the process advised by balloon27 (http://forum.xda-developers.com/show....php?t=2682146). I have my 4X hd back .... yupi, yupi, yupi, yupi, yupi, ..... you guys are just the greatest. Once again a big thank you all of you. The 4X HD is working like a charm, a thank-you to the forum.

[Q] Boot animation stuck no S/W mode neither recovery

Hi I tried to install CWM recovery and my bootloader was unlocked i'm sure. But after reboot it stucks in boot animation!!! So that i haven't access to recovery and unfortunately when I try to put phone into S/W mode a white and black striped screen comes up and in this mode every KDZ flasher says that can't find phone or it's not connected!!:crying::crying::crying: What can I do??? I'm really scared!!! Please help!!!!:crying::crying::crying:
My current Rom is Hong kong 4.1.2

nobody's here?
fifali190 said:
Hi I tried to install CWM recovery and my bootloader was unlocked i'm sure. But after reboot it stucks in boot animation!!! So that i haven't access to recovery and unfortunately when I try to put phone into S/W mode a white and black striped screen comes up and in this mode every KDZ flasher says that can't find phone or it's not connected!!:crying::crying::crying: What can I do??? I'm really scared!!! Please help!!!!:crying::crying::crying:
My current Rom is Hong kong 4.1.2
Click to expand...
Click to collapse
nobody's here? please help!! I'm really in problem!!!

is fastboot working?
which cwm and which method did you use to install cwm?
How much battery did you have in the phone when you did this?

Rudjgaard said:
is fastboot working?
which cwm and which method did you use to install cwm?
How much battery did you have in the phone when you did this?
Click to expand...
Click to collapse
honestly i don't know how to use fastboot in this condition.i installed cwm touch recovery version 6.0.1 (i'm not sure for version) with an app named LG 4X Recovery app from here: http://forum.xda-developers.com/showthread.php?t=1826378 and the battery was full

Why would you use something from a thread dated 2012?!?
download recent twrp or cwm img
go into bl and flash manually -> fastboot flash recovery recovery.img

sorry
Rudjgaard said:
Why would you use something from a thread dated 2012?!?
download recent twrp or cwm img
go into bl and flash manually -> fastboot flash recovery recovery.img
Click to expand...
Click to collapse
sorry my friend can you explain it step by step from zero for a beginner?? I need help really!! please!!

Same issue with my P880
fifali190 said:
sorry my friend can you explain it step by step from zero for a beginner?? I need help really!! please!!
Click to expand...
Click to collapse
Hi.
I did the same thing today. I installed that application " LG-Optimus-4XHD-Recovery-v1.1.apk "
I have selected ClockworkMod Custom Recovery.
It showed that Operation is successful.
than i clicked on "Boot Recovery" to restart my Phone in CloclworkMod Custom Recovery.
since then I am getting only Starting animation. (LG LOGO).
nothing happens.
My battery was full when i performed this procedure.
Please help me

Shrikantbhole90 said:
Hi.
I did the same thing today. I installed that application " LG-Optimus-4XHD-Recovery-v1.1.apk "
I have selected ClockworkMod Custom Recovery.
It showed that Operation is successful.
than i clicked on "Boot Recovery" to restart my Phone in CloclworkMod Custom Recovery.
since then I am getting only Starting animation. (LG LOGO).
nothing happens.
My battery was full when i performed this procedure.
Please help me.
Personal ID: [email protected]
contact : 9987575516 (Mumbai)
Click to expand...
Click to collapse
any help please,i have the same problem

Solution
Above post is mine.
I was stuck at LG Logo for 2 whole days.
You have to flash your phone.
I flashed my phone with same v20a (4.1.2 JB) firmware.
now its working absolutely fine.
Download LG Flash tool
Download Firmware.
pull battery out, Put it back in,
hold VOL- and Connect usb cable
then your phone will be in S\W mode.
then run Flash tool and select Firmware file,
and flash it.
your phone will restart automatically, then pull out cable and let it start on its own.
DONE.!
for LG Flash tool and Original V20A firmwares google and search.
as I am new member I am not allowed to post links or else i would have posted all the new links.
Its easy, all the best..!

so no hope for me?
can't flash KDZ, it just dosen't work, or freezes, or app stop responding and force-closes, when flashing by flashtool it errors after 17 sec...
any ideas?

LG service center
Hi again friends.Unfortunately I'm going to use lg service center and show phone to them:crying:.What should I say to them?Can I use warranty?Do they realise I rooted my phone and my warranty voided?And finally if warranty doesn't support it, how much it costs to repair?