Database Develop

Bricked lg ob pls help!

im a new owner of LG Optimus Black. i updated it via LG Mobile support it was smooth. then i tried updating it to v20O coz mine got v20f. when i flash it using smart flash tool, in the middle of the update i got an error message, i tried it so many time. 10x i guess until it turns off and nothing happens. when i put the USB cable still nothing happens. black screen, no light. literally its OFF. also the S/W mode is unable to access. unlike before i flash the v20O update. what should i do to make my OB back in life again? any help? i'll be more thank you if you could help me. thanks in advance! more power!

If you cant acces s/w mode.
Service center it is

try again to get into the mode S / W upgrade and remove the battery still hold the Volume + button while connected via USB cable to your PC if LG OB mod S / W upgrade not , then only repair service: (

I had the same problem. I reinstaled lg drivers, than enter in s/w mode and connect but by other usb. After that reflash by smartflash using stock rom. Should be ok. I think. After that you can root the rom and instal cwm for flash by zip files with other roms. Ofcourse if you can enter in s/w mode. If yes, you can fix yours problem.
Wysłane z mojego LG-P970 za pomocą Tapatalk

Try plug in other USB
Reinstall lg USB drivers
restart the system
when processing, don't move the cable or don't allow loose connection of USB cable.
Finally, this is the way, If it fails, go to service center

Install software updater tool from LG web site.
Before it take back up memory card to PC
Delete lg driver and install again
Restart PC
Remove battery of your mobile and refit it but not try to switch on.
(Veryfy that battery full charge at least 60 percent.)
Start LG updater tool it is called ( b2c app ) on your PC
Now
Keep one end of cable to LG mobile and keeping pressed the volume up key insert the another end to PC. The phone must show software Update mod on screen. Or some problem in driver or something
But one thing required is broad band internet necessary.
The b2c will detect your mobile.
There is an option for recovery phone
select it and it will ask inside and serial number
Only individual Number you can input and Press check
Wait wait wait
Some warning message appear
Click yes.
Wait the PC to download necessary files from net
And it will flash the software to mobile
Wait to complete the process
And its all
It should work
Best of luck
Pl ask if any doubt.
Sent from my LG-P970 using xda app-developers app and cm7

[Q] USB Device not recognized

Hello everybody,
I've got a problem with my optimus black.
I flash this ROM http://forum.xda-developers.com/showthread.php?t=1984246, but I'm not satisfied of it and I'm want to reflash the V20N with smartflash tool.
But when I put my phone in S/W Upgrade mode my windows said USB Device not recognized.
I've done this twice:
- install/uninstall usb driver and LG Pc suite
- change usb cable
- change usb port
- change ROM
Nothing work I thing that my bootloader is corrupt because it's modified in the V28c.
Thanks for helping me

just boot ur phone in software mode den it will recognize usb in smart tool flash..
Sent from my LG-P970 using xda app-developers app

redgolum said:
Hello everybody,
I've got a problem with my optimus black.
I flash this ROM http://forum.xda-developers.com/showthread.php?t=1984246, but I'm not satisfied of it and I'm want to reflash the V20N with smartflash tool.
But when I put my phone in S/W Upgrade mode my windows said USB Device not recognized.
I've done this twice:
- install/uninstall usb driver and LG Pc suite
- change usb cable
- change usb port
- change ROM
Nothing work I thing that my bootloader is corrupt because it's modified in the V28c.
Thanks for helping me
Click to expand...
Click to collapse
What version of Windows?
What version of USB Drivers? Try newer drivers.
Bootloader isn't be changed by flashing ROMs in CWM. ROMs only need to change from boot partition and upwards since thats all they need to change.
Sent from my LG-P970

nothing new
SamBG said:
just boot ur phone in software mode den it will recognize usb in smart tool flash..
Sent from my LG-P970 using xda app-developers app
Click to expand...
Click to collapse
What do you mean by software mode ? You mean when the phone is wake up and i'm on Lg Home ? Because when I do it smartflash doesn't find my phone, but windows yes. I tried also to use the SOS recovery mode of B2C but it said that my software version was up to date so it did nothing.
xonar_ said:
What version of Windows?
What version of USB Drivers? Try newer drivers.
Bootloader isn't be changed by flashing ROMs in CWM. ROMs only need to change from boot partition and upwards since thats all they need to change.
Sent from my LG-P970
Click to expand...
Click to collapse
I tried on windows 8 and 7. On twice I downloaded the newest driver 3.7.
I think a problem of bootloader because I flash the old version of V28c, with the .bin and .fls which had CMW inside, It was befor they release the .zip version. It's rewrite the bootloader no ?. And also because my phone doesn't wake up when I push on power button on the V28c, V20G, and CM10. I can only flash it because of rom manager and nandroid backup.
Thanks for help

Solved
After 2 day on this @"#[email protected]# phone, I find a solution work only on widows 7:
With the usb recognition I succed with this protocole,
1) Uninstall the Lg driver
2) Install the driver with B2C
3) Put the phone in S/W mode with the battery windows will say that it's not recognized,
4) Unplug the phone It will stay on S/W mode
5) Reboot Windows 7, and as soon as the desktop finish to load plug your phone
And miracle it's work. Sometime you need to do it 2,3, or 10 times.
Concerning the power bouton it still desn't work on V10A, V20N.... So I think it's broken, so I will exchange it with my operator.
Thank a lot for people who gave me some time.

redgolum said:
After 2 day on this @"#[email protected]# phone, I find a solution work only on widows 7:
With the usb recognition I succed with this protocole,
1) Uninstall the Lg driver
2) Install the driver with B2C
3) Put the phone in S/W mode with the battery windows will say that it's not recognized,
4) Unplug the phone It will stay on S/W mode
5) Reboot Windows 7, and as soon as the desktop finish to load plug your phone
And miracle it's work. Sometime you need to do it 2,3, or 10 times.
Concerning the power bouton it still desn't work on V10A, V20N.... So I think it's broken, so I will exchange it with my operator.
Thank a lot for people who gave me some time.
Click to expand...
Click to collapse
hey no need to restart ur windows 7 just after connecting the phone go in s/w mode...the tool will automatically detect the usb in sumtym...
Sent from my LG-P970 using xda app-developers app

I can't into s/w upgrade mode

I try flash V20J by using smartflashtool.
But my phone got bootloop.
I try smartflashtool option, Erase user data, and bricked.
Optimus Black display nothing.
Connect to PC with holding volume+ ,
disappears soon as the device will be recognized.
Device name is OMAP3630 and has problem.
I can't into s/w upgrade mode.
Can someone please help me ??

Sv: I can't into s/w upgrade mode
Did you mark erase entire CP?
Sent from my Black phone that is at place 970 in LGs optimus list and running CM10.1.

RomWiz said:
Did you mark erase entire CP?
Sent from my Black phone that is at place 970 in LGs optimus list and running CM10.1.
Click to expand...
Click to collapse
No,I only marked erase user data(AP).

The screen does not display anything.
But I leave a battery in optimus black, it drain battery. 80% in 10 hours.
I confirmed it by other device.
And only connect to PC, no hold any button, PC recognized OMAP3630.
I guess from these facts, connect it to PC run another mode before entering the s/w upgrade mode.
Please tell me p970 bootstrap or tips.Thank you.

[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.

Update failed - black screen!

I tried to update my LG P880 with LGMobile support tool yesterday.
After connecting the phone, I clicked on Start updating. A window popped up, telling me that it was downloading.
When it came to the update part, it lost connection with the phone. I did exactly as it said I should do (unplug, take out battery and put in in again, turn on the phone and connect it to the pc), and it restarted with the updating.
On about the same point as last time, the pc lost the connection with the phone. I did the same as last time, but now, the phone just doesn't boots into the S/W update screen.
The phone is NOT booting, NOT working to flash kdz, and it is NOT detectet as a phone, neither by the pc nor the LGMobile support tool, but my pc detects a device called APX when I connect the phone to the pc.
What can I do? And what is wrong?

Do this http://forum.xda-developers.com/showthread.php?t=2069723

erst said:
I tried to update my LG P880 with LGMobile support tool yesterday.
After connecting the phone, I clicked on Start updating. A window popped up, telling me that it was downloading.
When it came to the update part, it lost connection with the phone. I did exactly as it said I should do (unplug, take out battery and put in in again, turn on the phone and connect it to the pc), and it restarted with the updating.
On about the same point as last time, the pc lost the connection with the phone. I did the same as last time, but now, the phone just doesn't boots into the S/W update screen.
My pc detects a device called APX when I connect it to the pc, but the LGMobile support tool doesn't recognize the phone.
What can I do? And what is wrong?
Click to expand...
Click to collapse
LGMobile support tool needs the phone to be in normal mode (generaly...).
No SW or other, just turn ON your phone and connect it to PC.

Stanley- said:
Do this http://forum.xda-developers.com/showthread.php?t=2069723
Click to expand...
Click to collapse
When I try to connect the phone, by pressing vol down, I am not getting the S/W Upgrade screen.

erst said:
When I try to connect the phone, by pressing vol down, I am not getting the S/W Upgrade screen.
Click to expand...
Click to collapse
Take out the battery, wait 30 sec. and put it back, press vol- and connect to PC while pressing.

Nothing is working
I don't get the SW upgrade screen when connecting to PC, the phone is an "Unknown device" og named APX under device manager, and the KDZ program cannot find the device.
Is it any other tings I can try?

so if its apx, you can simple flash it via APX mode with nvflash, right ?
(i remember when i rooting my Optimus 2X via APX , that flashed prerooted system.img... so you can try this method)

erst said:
Nothing is working
I don't get the SW upgrade screen when connecting to PC, the phone is an "Unknown device" og named APX under device manager, and the KDZ program cannot find the device.
Is it any other tings I can try?
Click to expand...
Click to collapse
Out of ideas... you can try to use the official lgmobile tool and use the emergency mode to recover it...

mmm273 said:
so if its apx, you can simple flash it via APX mode with nvflash, right ?
(i remember when i rooting my Optimus 2X via APX , that flashed prerooted system.img... so you can try this method)
Click to expand...
Click to collapse
Do you have a link to a guide or something?
RuedasLocas said:
Out of ideas... you can try to use the official lgmobile tool and use the emergency mode to recover it...
Click to expand...
Click to collapse
No. That just leads me to the LG Mobile Support tool, and it can't do anything.

Did you try to get SW upgrade with battery in? (I had the same problem)

Yes.
I have tried both with the battry in the phone and taken it out

erst said:
Yes.
I have tried both with the battry in the phone and taken it out
Click to expand...
Click to collapse
So what happened with your phone- do u get lg icon and charging indicator when u connect phone?
did u try lg flash tool - i know it needs usb serial port but just try and after all ports ready disconnect phone for 3-5 sec and reconnect -maybe the tool will feel it this way - i'm trying to get manual copy of of that lge usb serial port driver but its not working well on win7 64 i think it'll be easier on xp- if so try to update this APX driver to lge cdma usb serial manually and tryflash tool on it
also the flash tool has board dl option u might try
when connecting phone turned off here i can get some adbs drivers one of them is adb anroidnet usb serial port - the problem is when charging note dissapear(display turned off) its gone and i've to repress power button normal press to get it again

future81 said:
So what happened with your phone- do u get lg icon and charging indicator when u connect phone?
Click to expand...
Click to collapse
I got nothing when I plugged it in.
Anyway, I have sent it in to the place I bought it from, to get a new one.
Thanks for all the help you have given me here, but you don't need to try to help me more