I tried rooting my L9 P769 earlier today.
I saw that I could unlock my bootloader for a faster rooting process, so I tried that.
I flashed to 10A from 20D, and that's when I got the wonky screen and reverse image.
From there I flashed to 10G and although the reverse image was gone I still had the wonky screen.
Now I've flashed back to 20D and I still have the wonky screen. I can't even get through the initial set up.
I've flashed and rooted phones before with no problem, so this is very discouraging to me. Please help
EDIT: Right after publishing this topic I thought of something. If there is a way to enable USB Debugging via the emergency call keypad, I can use the adb to fix the screen problem. I saw a fix for it earlier, after I had gotten myself into this bind. Is there a way to enable USB Debugging via the emergency call keypad?
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So I rooted my sister's optimus v about a month ago. Today she installed a battery mod app from applanet and as soon as she chose which battery mod she wanted she had to restart her phone for the changes to be applied, but when rebooting the phone it would only get stuck in reboot. So I tried to start it up in recovery and got the blue screen that says fastboot mode started. I looked that up online and found a fix to it but I need it to go into emergency mode to fix it that way and it will not go into emergency mode, any combination of keys only takes it to either the blue screen with the fastboot mode message or it just reboots and gets stuck. So now what do I do? I really need to find a way to fix her phone. Thanks in advance to anyone who tries to help.
try to turn on the phone & use LGMobile update tool. That should recognise the phone & install original lg fw
tabs648 said:
So I rooted my sister's optimus v about a month ago. Today she installed a battery mod app from applanet and as soon as she chose which battery mod she wanted she had to restart her phone for the changes to be applied, but when rebooting the phone it would only get stuck in reboot. So I tried to start it up in recovery and got the blue screen that says fastboot mode started. I looked that up online and found a fix to it but I need it to go into emergency mode to fix it that way and it will not go into emergency mode, any combination of keys only takes it to either the blue screen with the fastboot mode message or it just reboots and gets stuck. So now what do I do? I really need to find a way to fix her phone. Thanks in advance to anyone who tries to help.
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give a try to error guides over here http://forum.xda-developers.com/showthread.php?t=883314 it has done wonders for many flash in cs emergency mode from the flasher menu. Read detail guide in the link provided.
I am not sure if it works for optimus v but it does works for optimus 1. give it at try
I managed to finally get the phone into emergency mode. I had installed the LG mobile support tool and installed all the drivers and tried to go that route but it kept telling me I only had one of four drivers installed, even though I have installed several drivers. After all of that I had finally got it into emergency mode so I went back to trying KDZ. I'm supposed to select the rom where it asks for the KDZ file right? But when I go to browse for the rom file it doesn't show up in the folder I put it in. I've rooted 4 phones and have done so many other things with them and never bricked one, was always able to figure out everything I did and never had to ask any questions but I can't figure this out to save my life and it is driving me crazy. I do really appreciate you guys for the suggestions and thanks to your suggestions I have gotten this far.
Hey, I have the same problem. I rooted my phone then I installed that battery mod app on applanet. I installed it then when I had to restart my phone for it to apply it just got stuck and kept looping the reboot screen where it says "ANDROID". Did you get ur fixed yet?
tabs648 said:
I managed to finally get the phone into emergency mode. I had installed the LG mobile support tool and installed all the drivers and tried to go that route but it kept telling me I only had one of four drivers installed, even though I have installed several drivers. After all of that I had finally got it into emergency mode so I went back to trying KDZ. I'm supposed to select the rom where it asks for the KDZ file right? But when I go to browse for the rom file it doesn't show up in the folder I put it in. I've rooted 4 phones and have done so many other things with them and never bricked one, was always able to figure out everything I did and never had to ask any questions but I can't figure this out to save my life and it is driving me crazy. I do really appreciate you guys for the suggestions and thanks to your suggestions I have gotten this far.
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I'm having the same issue right now, although at least you have managed to get it into emergency mode. How did you do it?
The other issue I'm seeing is that there is no .kdz for the Optimus V LGVM670. I found a .cab file that is supposed to be the newest update, but not even sure that will work with the the kdz manager.
It was my sister's phone and I had the same problem with kdz. Had the cab file so couldn't use it with kdz. My sister left her phone with me for a few days to try to fix it and when I couldn't she took it home and managed to fully brick it to where it would do nothing at all so she had to get a new phone. I got it into emergency mode by holding down the volume and it was either the back button or the home button I pushed at the same time, can't remember which. As I held those down I plugged in the USB cord that was connected to my laptop and it went right into emergency mode. Just make sure you disable that LG modem in the device manager on the computer before doing anything because my sister forgot to do that and that is how she fully bricked her phone. Good luck to you guys and if anyone figures out how to fix it I would be interested in knowing how you did it.
tabs648 said:
It was my sister's phone and I had the same problem with kdz. Had the cab file so couldn't use it with kdz. My sister left her phone with me for a few days to try to fix it and when I couldn't she took it home and managed to fully brick it to where it would do nothing at all so she had to get a new phone. I got it into emergency mode by holding down the volume and it was either the back button or the home button I pushed at the same time, can't remember which. As I held those down I plugged in the USB cord that was connected to my laptop and it went right into emergency mode. Just make sure you disable that LG modem in the device manager on the computer before doing anything because my sister forgot to do that and that is how she fully bricked her phone. Good luck to you guys and if anyone figures out how to fix it I would be interested in knowing how you did it.
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hmmmmm, I don't remember completely how I did it, but there was a very helpful guide floating around XDA. I bricked my Mom's Optimus one as well . I actually had to go to the LG support site, type in my Phone serial number and find a list of all the firmware available. From there I right clicked the page and got the page source. From there I got my firmware and I entered it in the KAZ or LG B2I Agent ? - Dont quite remember. Anyways, it ended up working out for me, but I accidentally flashed the German firmware, but in the end, everything was all good LOOL.
Hello everyone,
I've searched everywhere I can think of to figure out how to solve my problem, and I assume the answer is hiding in an obscure part of an earlier thread on these fora. I was able to root my L9 P760 running Android 4.1(Jelly Bean) and from there naively assumed I could flash the recovery using ClockworkMod. After rebooting I've been getting the infamous "Security Error" screen. I've been able to get the "S/W Upgrade" screen, but that's as far as I got. I believe this means the bootloader is locked.
I followed a lot of instructions I found including using fastboot via omap4boot(http://forum.xda-developers.com/showthread.php?t=2119090) and the offline kdz flash(http://forum.xda-developers.com/showthread.php?t=2085344), but without luck. Fastboot would cause the phone to reboot, losing the "S/W Upgrade" screen and the kdz method would stall at 4%, leading me to find out that the phone needs to be in the "LG Update" USB mode, which I can't achieve because it won't boot.
I have two Macs running OS X 10.7 which can dual-boot into Windows 7. All software is up to date. I have experience using the command-line.
I hope there's a solution to this, and I hope that posting this here can help others avoid this problem in future.
Thanks in advance,
Pieter
Edit: I finally managed to flash a stock version of recovery, the x-loader and u-boot for Jelly Bean using the fastboot script from here. For those in a similar situation, I set the driver for the OMAP4xxx device which goes under TI devices(or something like that) and then I had to set the driver for a device called LG P4(or something, I didn't take a screenshot). I was then able to use the stock LG Mobile Support Tool, via the "Recovery Phone" option, to restore the newest version. However, it still won't boot properly. I get the LG logo when turning it on, and then the animation with the LG logo with the shiny effect on the smiley face keeps running in a loop. Is this the boot loop problem I've seen people asking about? How do I access recovery(and would that accomplish anything)? Any help would be appreciated.
Edit 2: I think I fixed it! I'm just documenting what I did to be helpful to other people. I had tried to do a hard reset earlier, but it didn't work. I tried it just now, and it worked, I got an droid with a progress bar underneath. Then it booted, and I heard the startup sound which I didn't know I was missing. I would still like to know in detail what I did wrong, and what I did right, and why it was right. Thanks in advance.
Simple, you probably did nothing wrong. Things just happen. I had this happen to me once. Security Error
However, I didn't install a custom rom or recovery img. All I did was flash a different kdz version (for my device). So my guess is that the boot img or other img, got corrupted.
I fixed my issue by flashing x, u, boot, recovery all in fastboot. Then I ran the flash update program again and it worked
Sent from my LGMS769 using xda app-developers app
dont know how to unbrick my lg [NEED ANYONE'S HELP :'( ]
hi,im new here...i have softbricked my lg l9 p768e last week. and i found this thread. i want to try using this method, but always stuck when launching B2Capp.exe. it appeared and gone like nothing happened. by the way, i cant get into CWM through my phone. somebody help me!!! i dont know what to do now...
sorry for broken english.
faizin.alfateh said:
hi,im new here...i have softbricked my lg l9 p768e last week. and i found this thread. i want to try using this method, but always stuck when launching B2Capp.exe. it appeared and gone like nothing happened. by the way, i cant get into CWM through my phone. somebody help me!!! i dont know what to do now...
sorry for broken english.
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How do you brick your phone. Did you try to hard reset it? Did you try offline flash or LG mobile support tool to recover your phone?
Hi
There is no specific forum related to this device so I am posting it over here.
I bought LG VU II (F200L) in perfectly working condition, it almost new. After installing LG PC suite and connecting it said new firmware update is available so I proceeded which was done successfully but since then touch screen is not working properly.
Usually it responds ok but main issue is back button is not working anymore, and sometimes when I press power button to unlock screen it responds very weird and not so responsive as well as sometimes doesnt responds or opens apps that I havent even clicked.
I tried to restore, emergency restore, LG Flash tools and used correct KDZ files to flash roms successfully but nothing seems to resolve this issue.
I made some research and the only thing I could find related was Mirror screen which I am not even sure if its the same thing.
Any help will be highly appreciated.
Do a downgrade if you can. If you can't take the phone to a service, much better if you have a warranty.
omega96 said:
Do a downgrade if you can. If you can't take the phone to a service, much better if you have a warranty.
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The ROM which was running properly before was also JB updated but strangely it was for F200S. I restored its cwm backup but still same problem.
Cant find any KDZ of ICS for VU II or F200 all over internet, all are JB. So I am unable to find any tutorial or files to downgrade it.
Hey, so I've looked through these forums, as well as google search, with every combination of words i could think of to address my issue, and so far nothing has worked. So im posting here, hoping y'all can help me.
My phone is the Lg optimus L9 p769 running FW v20h. I had it rooted, bootstrapped cwm recovery is installed and still accessible. Unfortunately for me, i had disabled usb debugging off. Cant remember why, but I did.
I was browsing around for build.prop tweaks, found a good list, and implemented a few. After reboot, everything was going smoothly, hell, faster and smoother than before, which i assume came from tweaking the build.prop. At that point, i chose to implement 1 more and be done. So i added the line and rebooted my phone. SOFT BRICK!!!!!
Now, as i said, ive done quite a bit of searching for a fix, including the offline fix and basic LG Support Tool restoration, but nothing is working. Offline fix says my phone is not connected. Online recovery says im already at the most recent FW available. Ive tried fastboot, but installing the u boot and x loader wont work. CMD doesnt recognize my phone when i try anything adb related (obviously, because usb debugging isnt enabled), nor does it recognize my phone as a fastboot device even with the phone displaying the mirrored logo and says fastboot v0.5 in the top right corner. Also, the bootstrap CWM wont mount my external SD, which has my build.prop backup on it.
So, basically, that what I've read into. A wall, so to speak. As a side note, my wife has the same phone with an unmodified build.prop. in fact, the only thing that i have done to hers is root it with the LGpwn app.
Now, is there anything i can do with this, other than throwing it against the pavement outside? While i think I'd get a sick satisfaction from that, it hardly solves my problem. Also, i called LG directly, but they won't help me at all without payment. Even with their CS rep saying it was their fault (because, of course, I'm not dumb enough to tell them I broke it by messing with the build.prop). However, the slight bit they did do remotely through the laptop had them going through the LG Service Tool.
Anyway, that's about it. It really is a great phone and i really would like to repair, rather than replace, it, but im stuck. Anyone got any ideas?
Hello,
I had a similar problem, offline method didnt worked for me saying that my device is not connected. Then I faund this tool on forum http://forum.xda-developers.com/showthread.php?t=2797190
Use it with described tutorial (use 3GQCT and DIAG) and you are going to unbrick your phone.
Ok, I'll give it a try when i have access to the neighbors laptop again. I'll post the results here. Fingers crossed, my phone is up and running again soon and I'll be able to post my results from my unbricked phone.
IT WORKED!!!!!
Holy hell, it worked! A week of searching and trying with no success, now my phone is up and running again! Thank you sooooooooooooo much! Can i get a solved tag?
You're welcome. I'm glad I could help
Hello everyone, I have been a fan of your forums for quite a while, you guys have an awesome community. I have been attempting to unbrick my VS990 with no success, I have LGUP and all of the proper dll files in the proper folders, I have two .kdz. One is the stock kdz, I can not get to work at all due to anti roll back (no matter which option I choose) and the other is the current kdz. I got that one to accept using update, but it did not fix my phone, it is still stuck in boot loop. and using refurbish I get an error message saying that it is not supported by that kdz. LG UP is fully recognizing my phone, I found the .kdz files no problem, I believe that I have followed all of the steps here >> https://forum.xda-developers.com/lg-v10/general/guide-lg-v10-stock-firmware-to-stock-t3224170 any help at all would be appreciated. Side note, I have not rooted or installed a custom recovery.
I would also like to add, I can not do a hard reset. Every time I attempt the phone either locks up when I hit the power key on yes to confirm factory reset, or sometimes it reboots to LG splash screen and locks up then. I am starting to wonder if there isnt a hardware problem with the phone instead of software.