Hello guys and gals, so i just recieved my LG V10 H901 and tried to follow https://forum.xda-developers.com/tm...step-step-guide-rooting-lg-v10-using-t3382631 this guide, but eventually i ended up with a brick after trying to flash the .tot file.
I keep getting
Boot Verification Fail
- cause: MISHMATCH_SIG_LEN
The TWRP recovery i had is now gone, and i can't access Bootloader. I can enter Download though. I read a lot of things around the problem, but i always stuck on various software versions or phone versions i can't really understand. Is there any way to get the phone back working? Before i try any method i just want to be sure i wont mess even worse (if that is even possible).
I tried UnbrickMe thread, but it says only for soft version:h90120j I have soft version H90120c (i haven't performed the update to MM) so i don't wanna try without being sure its going to work.
I m leaving for vacations in couple of days and i don't have a phone :/ please give me your lights.
Also LGUP wont see the phone, the same for ADB.
OK I Fixed it!
I was able to get out of this maelstrom of bootloops and to finaly flash the default ROM (you can find it here https://forum.xda-developers.com/tmobile-lg-v10/general/stock-h90120j000712-kdz-t3436249 )
So what i did is to remove battery for 10 seconds
Put The battery in
Hold volume up button
Plugin the phone to my PC through USB
Then download mode will start
I opened LGUP and fortunately it was able to see my phone.
Then went to Upgrade and flashed the kdz file.
All went smoothly and the phone is back working.
Related
My Optimus One has a black screen after a failed flash. I bought the phone in Hong Kong and cannot return it because I am back in the U.S. I will be returning to Hong Kong in a few months, so if anyone knows Broadway's (the electronics shop) warranty I would be grateful.
This is what happened leading up to the brick:
- Tried flashing Prime v2.
- After flash, didn't like the ROM, wanted to go back to AmberHome.
- I didn't have AmberHome on the SD card.
- I had made a backup of all my data when I was in AmberHome before I flashed Prime.
- I restored.
- Stuck on Android logo.
- Wiped all data, restored again.
- Stuck on LG logo.
- KDZ updater, phone in emergency mode, flash TYPE on EMERGENCY, flashed V10a (phone came with V10a)
- Mid flash, there was interruption.
- Tried flashing again, KDZ in CSEMERGENCY (phone still in EMERGENCY mode)
- Failed, repeated flash about 6 times.
- Kept failing.
- Tried turning off phone, then booting back up in Emergency mode again, hoping it would fix something.
- Phone won't turn on.
Isn't KDZ file corrupted?
I don't know. It just won't turn on. Any ideas?
Hi I have the same problem with my Optimus One.
After trying to back up original rom I can not get past the initial black screen.
Any help would be greatly appreciated.
What I don't get is why the phone stayed on in Emergency Mode and then didn't turn back on after trying to reboot back into Emergency Mode.
So, anyone got any answers, anything new?
Progress
I have made some progress.
After hours of research I am trying to fix through kdz updater.
My main problem is that only my Ubuntu box can connect to the net.
I have been trying to do it through virtual box but I just cannot get the software to see the phone.
Now I have copied the files to my old xp laptop. Surprisingly it still cannot find the phone.
I am going try to download drivers and manually install them on xp.
I will let you know how things are going. However I am bit flat out today so progress may be slow.
All the info on the forums has been very helpful, still if anyone can add something it would be great.
Well it was worth the effort. Lg Optimus One came back without losing anything.
All I had to do was re-root. Too easy with Z4root.
Anyway I had to download drivers elsewhere, load on to xp laptop disable lg modem driver in device manager, and just sit back and let it do it's thing.
At first I thought it failed as at the end an error message came up however it rebooted fine. Thanks for all the suggestions.
Were you stuck on LG logo or total black screen, no power, dead?
Just stuck on lg screen.
I am new to working with android but it must have had something to do with the boot sector.
Not sure what to do if no power.
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Hi,
I rooted my LG Vortex (no recovery installed yet), and deleted bloatwares such as Verizon Navigations and other apps. It was running great for the last two months until I reset my phone. After resetting the phone, I can no longer log in to my phone. After the phone is turned on, it tell me to choose the language and activate the phone. Then, LG Setup screen showed up and when I click next, it says unexpected error occurs and went back to choose language screen. I think I might have deleted something that is required to setup LG welcome screen. Is there anyway I can do to get the phone working? Any advice would be appreciated.
if you really did delete something essential, i think you should start back from scratch. find the kdz file for the lg vortex and flash it using kdz updater (of course, research this stuff first because while kdz updater is used to flash your phone, it can also brick your phone if you're not careful)
btw, heres how to get your kdz file:
http://forum.xda-developers.com/showthread.php?t=865479
edit: actually, this is an easier way to get your kdz file:
http://forum.xda-developers.com/showthread.php?t=1073827
and heres a guide:
http://forum.xda-developers.com/showthread.php?t=875881
Thanks sweetnsour. Unfortunately, I cannot find stock ROM for Vortex there. One more potential problem is that since can't log into settings, I cannot turn on USB debugging mode. I do not know if USB debugging mode has to be enabled to perform KDZ flash.
This is the error message that I received at the welcome screen.
"The application com.android.LGSetupWizard(process com.android.LGSetupWizard) has stopped unexpectedly. Please try again."
i know this reset might be similar to what you did, but i want to try all possibilities of saving your phone before we go into the hard stuff:
turn off your phone, hold the home+vol down+power. it should boot into the stock recovery and do a reset (i believe, at least this is what happened to me)
and if that doesnt work, check your pm.
heres a better guide (i shouldve posted this earlier, sorry), this should clarify some things
http://forum.xda-developers.com/showthread.php?t=883314
I have been at this for about 4 days, and I've spent literally all day today trying to get this to work. I'm having an issue with my phone where the battery is draining really bad, to the point that I have less than 3 hours of screentime on a full charge. I've read about mods and different installments you can use to fix this, but you have to be rooted. I was rooted before via Stump, but since then have unrooted back to the default. I tried to simply use Stump again but it says it's patched. After some research I found that I should flash back to a previous android version ( 10b ) and root it from there using Purple Drake, THEN use TWRP to update back to 5.1.1 lollipop. I'm running into some serious trouble flashing my Andriod. And I think its because it won't go into download mode. I turn it off and hold the volume button up whilst I plug it into the computer, and it goes directly into "Firmware update " 0%. And it has a progress bar, with no progress change I have no idea why it's doing this or what's causing this. I've tried the KDZ method, and it stops during the progress saying " Connection to server failed, please try again in a moment ", which I read was fine and to wait for a Green word on my phone screen and some changes, however the phone does absolutely nothing and sits on that same screen. I've tried the Lg Flash Tool method too, and there was an error saying " Failed Previous Load ()". I'm honestly exhausted and if someone could figure this out you'd be a lifesaver. Speaking of which, I'll buy you a whole bag of the fricking things if you do.
Any help is soooo very appreciated.
Thank you
Howdy,
Are you using the flash method described here?
You don't say which bootstack you're on. If you're trying to flash back from 35b you need a different dll. (LGUP8974.zip)
What Windows OS are you using to run the LG Flash Tools from? (It seems like success / failure can be very OS / USB Device driver related.)
For my phone, I had to get the flash tool ready to go - have the phone in download mode - and then unplug / replug the USB cable briefly on the phone in order for the process to initiate.
If you have some screenshots, that might be helpful too...
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.