hi
i was updating my phone with standard method with lg program.. (without downloading kdz file separately)
but an error occurred in 15% , " ..
"problem communication between cell and phone"
and my phone has locked in s/w upgrade mod and don't turn on.. even if i put the battery off and insert it again it turn on , in s/w upgrade mod...
please help..
If it's still at 15 % it shouldnt even have started flashing U are lucky so to say
Just pull out USB and battery, wait a few seconds and restart. Then try to install the latest drivers, maybe run it as admin or another PC if available.
If it's stuck in bootloop, try emergency recovery in B2C tool (LG update tool), or read in my noob how to, how to unbrick devices.
Also this thread needs to be in Q&A
I was using 64bit PC and had the same problem then I used another PC and the problem was gone
Had the same problem. Resolved using emergency recovery in LG tool, but using another pc.
Sent from my LG-P970 using XDA
Related
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
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
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.
Hi all,
I just got my new 4x HD. I have 4.0.3 (V10f non-European) on it, and want to use PC Suite to upgrade to 4.1.2 (V20c). After connecting my phone to PC, I start the PC Suite and start update. It confirms the version, and download the firmware. When it starts to update at 4% it reboots to S/W Upgrade mode. After it goes up to 5% and shows an error, and the update process stops. Tried it several times same error at the same time. I have tried with LG Mobile Support Tool, and it stops at 5% again. I have windows 8 x64 with all drivers and both softwares up-to-date. Does anyone has solution? Does anyone have the same problem?
Before update make sure you select LG Software
Then try to reinstall all drivers.
If it also not work use KDZ to flash v20x. In General Section there is a Tutorial
Sent from my LG Optimus 4X HD using xda-developers App
Hi
I've been reading all the topics in here and trying many methods, but now im desperate, so i dediced to post here
When i try to run my phone the red text appears: [LG-Security] Error: Boot Image Signature!
I've tried to run http://forum.xda-developers.com/showthread.php?p=35971349 this guide, but when i plug off my battery i cannot get into s/w upgrade in my p880.
When the battery is plugged in I can run s/w upgrade, but my computer doesn't see the device.
Is the phone bricked?
Can i do anything to ressurect it?
EDITroblem solved - still don't know how, but after 5000th reboot it is just working without any other bugs etc...
it's bricked, you tried to install custom recovery without unlocking bootloader?
you can revive it using that tutorial. leave the battery in in order to get to s/w upgrade screen, but before that, you need drivers (and if your computer isn't detecting it in s/w mode, the drivers aren't installed)
It seems that you didn't install the proper drivers on your PC as it doesn't recognize it.
Sent from my LG-P880 using XDA Premium 4 mobile app
Yes, your device is (soft)bricked, and yes, you should be able to recover it. Try the LGMobile Support Tool. Run the tool and plug in your phone while holding down the volume down button (with or without battery). If it doesn't see your device, make sure you have all the latest drivers for your device installed. You can find them on LG's website. Then, try again and once found you'll have to force an update. You can find that option somewhere in the top right menu's. Then be patient.
I seriously doubt whether you have properly searched the forum, or Google for that matter, though..
Sent from my Nexus 7 using xda app-developers app
Thank you for your help
As I mentioned - my phone somehow works...
I don't know how,why and what happend, but it just works...
I've tried to get the system back via lg tool, tried to install new kdz (didn't work, coz my phone was not recognized by computer)
Anyway - thank you again, and sorry for the time you lost