Database Develop

please help me downgrade to v20a to v10a

I just recently upgraded my OB into v20a gingerbread chinese rom.. after upgrade my computer cant recognize my phone as an android device. Therefore i cant root it. But in recovery mode my computer can detect it so i tried flashing v10a directly but failed.
All lg drivers and pc suite are already installed. Im using windows vista 32bit. I ke
ep getting this message from my pc: found new hardware cdc serial. Found new hardware B project. When usb debugging is on.
Please help me.
im new here and its my first post.
Thank you.

You need this kit. Put tour phone in download mode by pressing volume up while inserting usb (phone off). Then flash with KDZ updater.

I already did that.. i tried flashing v10a.nothing happened. Kdz stop responding. Is it possible to downgrade directly to v10a from v20a?
Thanks.

Try here . Hope it works. There are more combinations, but it will work.

it wont for me, i did everything they did on that forum, downloaded everthing but the R&D test tool just wont work on my PC. i cant press anything. only the box saying merge 250-390 mb files.
i did turn windows enabler on and off.
Do you know where i can download the v10a ROM in fls and bin format? im going to use smartflash tool instead.
thank you so much.
EDIT:
PROBLEM SOLVED
THANKS FOR HELPING MAN.

deckardcain said:
it wont for me, i did everything they did on that forum, downloaded everthing but the R&D test tool just wont work on my PC. i cant press anything. only the box saying merge 250-390 mb files.
i did turn windows enabler on and off.
Do you know where i can download the v10a ROM in fls and bin format? im going to use smartflash tool instead.
thank you so much.
EDIT:
PROBLEM SOLVED
THANKS FOR HELPING MAN.
Click to expand...
Click to collapse
http://media.xda-developers.com/images/smilies/confused.gif
I have the same problem. How did you do to get it solved?

I used a 64bit computer. Installed all the LG drivers. And used the R&D test tool.

Bricked LG Optimus 2x after a nandroid backup

Hello guys!
Sorry for my english... I'm still learnig... So... After I did this tutorial http://forum.xda-developers.com/showthread.php?t=1856090
Another recovery mode version has been installed (touch). after that I did a full wipe because i wouldnt any more dual boot and I installed wiui rom. I did titanium restore backup and other configs and everything was fine. Entered in rom manager and I choose backup rom. Backup was done sucesfully. after that my lg optimus 2x died it couldnt reboot and now it cant boot, the screen is black and blank.I've tried all stuffs I could read on internet but the only thing I could was install apx drivers but when I start "flash.bat" to restore stock rom, the last line in cmd show me "waiting for bootloader to initializer"
is my phone bricked forever??
If there is a solution I would be grateful!!!
Sorry for something that was no clear to you guys!

Is not bricked search for Smartflash or Nvflash.

dorwoo said:
Is not bricked search for Smartflash or Nvflash.
Click to expand...
Click to collapse
I've already did that but I'm stocked at "waiting for bootloader to initializer" with nvflash (2x-v10b-1300166062-nvflash) here: http://www.modaco.com/topic/335416-nvflash-setup-instructions-drivers-links-active/
and here: http://forum.xda-developers.com/showthread.php?t=1007825
With smartflash i can set .fls and .bin files but the application cant recognize LG O2X. I pull out battery, vol - / + pressed and I plugged to USB.
I've already tried this methods: smartflash, 2x-v10b-1300166062-nvflash (flash.bat), One-Click-G2x-recovery-flasher-04-28-12 (it was at O2X thread in another forum).
Thanks a lot. I have HOPE!!!!

Bricked
For those people who said the LG O2X DO NOT Bricked, Here is my thread! My LG does not turn on even the devil came here now!!! :fingers-crossed: I requested lg warranty today because no one of the methods in internet (nvflash, smartflash, one click recovery e etc etc etc) served for me. So... I cant stand LG anymore... Good bye LG!
Thanks guys for the help and the hope!!

I think u did not do it properly...i had mine in same condition and i was able to recover with smartflash.

dorwoo said:
I think u did not do it properly...i had mine in same condition and i was able to recover with smartflash.
Click to expand...
Click to collapse
Thx for reply! tell me how did u do it at steps? If LG doesnt repair my device I will try fix it by my self!
Thx a lot! In both methods any picture or word or something like upgrade s/w, show on screen of my O2X. I've tried these methods and nothing. My device was connected to the USB with nvflash all night and menssage "waiting for bootloader to initialize" persisted. Nothing happened.
Help me if u can!
I will be greatfull with you my friend.
I'm not a totaly noob! And I read as I can to learning more and more about android OS.
Again, Thanks!

I did what says here: http://android.stackexchange.com/qu...-lg-optimus-2x-p990-back-to-stock-lg-software
I had problems on my pc because of drivers i think and smartflash didnt worked but i managed to do it on other pc.U should be able to do it if u follow the steps but if u get errors with smartflash try reinstalling drivers or with other pc.

[Q] Problems with recognizing

Please help me. I wanted to put cynogen mode on my LG 4X, and something went wrong. Now when I start the phone shows me the logo of LG and writes under, security error Morning Call is empty ... and now when I try to connect the phone to a computer , my computer is not show me LG like LG P880, than as a device unreconized device .. does anyone know how to fix my LG?

croluka4789 said:
Please help me. I wanted to put cynogen mode on my LG 4X, and something went wrong. Now when I start the phone shows me the logo of LG and writes under, security error Morning Call is empty ... and now when I try to connect the phone to a computer , my computer is not show me LG like LG P880, than as a device unreconized device .. does anyone know how to fix my LG?
Click to expand...
Click to collapse
Check if you have the latest drivers, connect the phone in recovery (vol- and connect to PC), flash with LGFlash Tool.

RuedasLocas said:
Check if you have the latest drivers, connect the phone in recovery (vol- and connect to PC), flash with LGFlash Tool.
Click to expand...
Click to collapse
I cant flash my LG with LG Flash because tihs program dont reconized my phone.. "Phone is not found"

croluka4789 said:
I cant flash my LG with LG Flash because tihs program dont reconized my phone.. "Phone is not found"
Click to expand...
Click to collapse
palalos81 said:
hi. i woould like to downgrade from v20a to v10h and the lgflashtool doesn't work.some times stuck on ready and some others on 10%i have tried almost everything from installing the drivers once more until change pc and ports.is there any option to downgrade with another way?
Click to expand...
Click to collapse
There is no other way...
Did you follow the tutorial? Did you remained calm and gave time for windows recognise your device?
Did you uninstall and re-install the drivers? You're able to reboot in SW mode (vol- pressed while connecting to PC)?
Here you have all files needed:
http://forum.xda-developers.com/showpost.php?p=38838927&postcount=7
Delete your old files, download new ones and follow the tutorial.
Remember to remain calm and give time to system recognise and install everything needed.
Good luck :fingers-crossed:

RuedasLocas said:
There is no other way...
Did you follow the tutorial? Did you remained calm and gave time for windows recognise your device?
Did you uninstall and re-install the drivers? You're able to reboot in SW mode (vol- pressed while connecting to PC)?
Here you have all files needed:
http://forum.xda-developers.com/showpost.php?p=38838927&postcount=7
Delete your old files, download new ones and follow the tutorial.
Remember to remain calm and give time to system recognise and install everything needed.
Good luck :fingers-crossed:
Click to expand...
Click to collapse
TNQ...I fix my LG...and know work perfect I put 20A kdz. 4.1.2. and phone work perfect

Same problem here
I have the same problem. I think the stupid thing I did was to install V20a without rooting the phone. Now I cant root it. IS11LG_SystemBackupTest.signed.ap would not run and when I try to recover either with LGflashboot or LG firmware recovery I get the same error message "morning call is empty" (very strange error message). I can go back to v20a but since I am not completely happy with it I would like to resolve it. Is there any chance to fix it? I am not very confident to format bootload or installing custom ROM.
Thanks

sgiedrius said:
I have the same problem. I think the stupid thing I did was to install V20a without rooting the phone. Now I cant root it. IS11LG_SystemBackupTest.signed.ap would not run and when I try to recover either with LGflashboot or LG firmware recovery I get the same error message "morning call is empty" (very strange error message). I can go back to v20a but since I am not completely happy with it I would like to resolve it. Is there any chance to fix it? I am not very confident to format bootload or installing custom ROM.
Thanks
Click to expand...
Click to collapse
You cannot root the phone on V20a using IS11LG_SystemBackupTest.signed.apk, since that file is used for versions V10x. Check out this link for rooting V20a: http://forum.xda-developers.com/showthread.php?t=2180688

croluka4789 said:
Please help me. I wanted to put cynogen mode on my LG 4X, and something went wrong. Now when I start the phone shows me the logo of LG and writes under, security error Morning Call is empty ... and now when I try to connect the phone to a computer , my computer is not show me LG like LG P880, than as a device unreconized device .. does anyone know how to fix my LG?
Click to expand...
Click to collapse
Same problem here!

xavierleonelbr said:
Same problem here!
Click to expand...
Click to collapse
Uninstall all drivers and folders like "LG United Mobile Driver" and "LG USB Modem Driver".
Re-install the drivers:
http://www.4shared.com/file/rPpP2btT/LGUnitedMobileDriver_S4981MAN3.html
http://www.4shared.com/file/ZSMf2x6n/LGUSBModemDriver_Eng_WHQL_Ver_.html
Take out the battery, press "Power Button" (just to discharge all phone components), put the battery back on the phone.
Press "Vol-" and connect to PC. Wait while windows detect the device and search in windows update for possible new drivers.
Windows won't find a thing but will take some time while trying...
After that you should be OK.

Just did similar to my phone and followed the advice in this thread - now sorted. Thanks guys you rock!

if u epic fail to manually force the drivers in just install android jdk open it and update it.

croluka4789 said:
Please help me. I wanted to put cynogen mode on my LG 4X, and something went wrong. Now when I start the phone shows me the logo of LG and writes under, security error Morning Call is empty ... and now when I try to connect the phone to a computer , my computer is not show me LG like LG P880, than as a device unreconized device .. does anyone know how to fix my LG?
Click to expand...
Click to collapse
I had the same problem, after running several recovery procedures and kdz files, I finally was able to restore the phone to it's original ICS rom.
Download the files in the description and follow up the video.
http: www youtube com watch?v=12v5A3pArJQ
hope it helps.

Return from soft brick on kitkat

For the past few weeks I've been toying around with the no custom recovery issue on the KitKat update. Trying different boot.IMG to aboots to different boot sequences. As you can guess I've had no luck. And ive gotten completely disgusted with the lg flash tool and methods of returning to stock from soft brick. But what I have managed to figure out is if you use the "lg PC suite", when soft bricked on kitkat, to unbrick, you can go back into the " lg PC suite files on your PC and get the .kdz that it used to reflash your phone.
When soft bricked I would power off the phone by holding power till it went off then on for a second then right back off again. Make sure all drivers are installed before you plug in your phone. Once off hold vol up and plug into PC. This puts you into download mode. Now open the lg PC suite that your phone installs normally. Make sure you have internet connection. And at the top of the PC suite you will see a toolbar. Click " mobile devices " then in the drop down click " Restore upgrade errors". Let it do its thing. After its finished you'll also have the .kdz for KitKat in the PC suites files on your PC. I've fixed a dozen or so soft bricks using this method. And when I don't have internet connection I have used the "lg flash tool 2014 " along with the .kdz from the PC suite files and returned from soft brick.
Lg flash tool 2014 is posted in another thread on XDA. I am writing this in a hurry in hopes to help others but I'm rushing to work so don't have time to post links to the tools.
Good Luck.

wrong thread

I never mentioned using any backup. The lg PC suite doesn't restore a backup. Nor does the lg flash tool.
So what are you talking about? And a backup would have to be restored through a recovery....which we do not have on KitKat nor is there an option in the stock recovery on jelly bean.
And in my original post I mentioned
" toying around with the NO recovery issue on KitKat".
Are you sure you replied to the correct post. Cuz I have no idea where you got the idea of using a backup to restore your phone.

My bad wrong thread.

Help, Hardbrick LG L90

Hello guys, i'm new here. First of all english is not my native language so sorry if i make any mystakes.
I flashed my phone to Lollipop. Then i tried to install twrp (with Flashify) recovery so then i could install Xposed... but the thing is that i may have used the wrong file..
My phone doesn't start. The only sign of live that it gives is when i plugged it to the PC, the pc makes the usual sound when you plug a USB. And it shows my phone as a usb with 63MB of storage (obviouly my phone has more storage). And when i go to Disk admin it shows me all the partitios that my phone has.
Also in Devices admin it shows my phone as: LGE AndroidNet USB Serial Port (COM6)
Do you know what can i do to unbrick my phone? :crying::crying:
LG D410H with lollipop 5.0

Did you unlocked the bootloader before flashing twrp?
Did you tried to hold vol + and plug USB cable to enter in download mode?

F. Gacrux said:
Did you unlocked the bootloader before flashing twrp?
Did you tried to hold vol + and plug USB cable to enter in download mode?
Click to expand...
Click to collapse
Hello, thanks for your reply.
Yes i have tried that already. Nothing seems to work :crying:
When i tried Volume up and plug the cable it shows nothing in my phone's screen. Just in my PC i sounds like a disconected or connected device

You probably flashed the wrong bootloader, which is a fatal error.
I know users that managed to recover other phones from this brick with LGBoardDiag as explained in this topic: http://forum.xda-developers.com/lg-g2/general/fix-unbrick-lg-g2-stuck-qualcomm-hs-usb-t2933830
I don't know how to get this TOT file, but the same partitions shown can be retrieved from your KDZ in BIN extension with LGFirmwareExtract, I think it's just a matter of renaming the files.

F. Gacrux said:
You probably flashed the wrong bootloader, which is a fatal error.
I know users that managed to recover other phones from this brick with LGBoardDiag as explained in this topic: http://forum.xda-developers.com/lg-g2/general/fix-unbrick-lg-g2-stuck-qualcomm-hs-usb-t2933830
I don't know how to get this TOT file, but the same partitions shown can be retrieved from your KDZ in BIN extension with LGFirmwareExtract, I think it's just a matter of renaming the files.
Click to expand...
Click to collapse
http://forum.xda-developers.com/lg-l90/help/bootstack-flash-gone-wrong-t3120536
i have this problem exactly the same

I found this interesting topic, you probably can recover from this brick to allow you to enter in download mode using LGFlashTool (not the one that flashes KDZ) like this: http://forum.xda-developers.com/showthread.php?t=2475045
But we still need this TOT file and the DLL for your D410H that I do not know where to find or to create from the KDZ.

F. Gacrux said:
I found this interesting topic, you probably can recover from this brick to allow you to enter in download mode using LGFlashTool (not the one that flashes KDZ) like this: http://forum.xda-developers.com/showthread.php?t=2475045
But we still need this TOT file and the DLL for your D410H that I do not know where to find or to create from the KDZ.
Click to expand...
Click to collapse
But i can't go download modde :/ my phone does not show anything on it's screen..
i've been trying with this post:
http://forum.xda-developers.com/lg-g2/general/tool-unbrick-lg-g2-qualcomm-9008-board-t3072073
but it gives me the error that appears at the beggining of the thread. I unplugged it, remove battery, then put it back again and reconnect the usb, but the same problem :/ :crying:
also i have found not the TOT file but this thread:
http://forum.xda-developers.com/lg-l90/general/guide-unbrick-hard-bricked-l90-variants-t3173429

I meant that will lead you to a working download mode, which is enough to restore everything, including partition table.
I have a suggestion, you said Windows detects as a mass storage unit, can you boot Linux and follow this thread http://forum.xda-developers.com/showthread.php?t=2582142 to see if can see all the partitions?
If yes, it's just a matter of extracting the KDZ of your variant and flashing the said partitions to get a working download mode to make a complete kdz flash.

lg l90 405 is believed to be 410 dual sim
hi to all guys, I would like to submit for your ATTENTION What I And Success Knowing and possibly come to restore rate.
I am the owner of an LG L90 model d405n, Wanting to make the Unlock bootloader I used an Application That I would have to just unlock the bootloader and recovery modified Install A.
In the cell AFTER tale reality 'hack And practically dead, he would not turn on even.
I Put in search tool various programs and various vain, the cell showed no signs of life.
Then, Dandolo now hope for him I tried to go for broke, I formatted a low debits and then with an Application (umbrick) I managed to flesciare start and everything else. Now the cell was lit and was anche in update download mode '.
I downloaded the firmware 405 and KDZ I Tried to use the flash tool but the procedure is always blocked at 2% giving an error.
With the instrument of 'LG I discovered sensationally That cell was identified coming D410, exhausted from the various prove not go into port I wanted to download the KDZ model 410D and, come by magic, flash tool worked! I installed the latest version information and cellphone works beautifully!
So now I have a phone with a firmware His (among other things the 410D E anche dual sim).
I would like to restore your system orifginale, That the 405 but I'm afraid to rate other trouble ....
I hope someone can give me a hand ...

LG L90 D410 Totally bricked. Please someone help.
I an LG L90 D410. I tried to install boot loader and after rebooting the phone, it was unusable. It is not showing any QhSUB_BUlk as well as any partition in My Computer. its not showing anything in PC. Please help someone how can i unbrick my phone.

Hello please try to follow this thread http://forum.xda-developers.com/lg-l90/general/guide-unbrick-hard-bricked-l90-variants-t3173429
This works 100% it helped me unbrick my phone. Hope it will work for you as well
Enviado desde mi LG-D410 usando XDA Forums