So as the title states I bricked my LG G PAD X 8.0 while trying to root it and now it's on a bootloop with the message "Boot Verification Failed!!!" "-cause : MISMATCH_SIG_LEN."
I have searched and tried a few methods to no avail thus far. I cannot get it to start in download mode as it is not even registering on my computer. I have tried factory resetting via Power+Vol Down and then release Power and pressing it again but that has also failed and it's going back into bootloop.
I have tried using LGUP and LG flashtool but they are not detecting the device. I've looked into the BoardDiag method but they are not specifically for the GPAD. The method requires removing the battery and this G PAD either cannot remove the battery or it is very difficult to do so. It also requires shorting the pins but I'm not very sure where they are located on this device.
If anyone has resolved this or knows how to resolve please help me out. Alternative methods or expand further on how to properly perform the BoardDiag method would be greatly appreciated.
Input? Answers?
ether9 said:
So as the title states I bricked my LG G PAD X 8.0 while trying to root it and now it's on a bootloop with the message "Boot Verification Failed!!!" "-cause : MISMATCH_SIG_LEN."
I have searched and tried a few methods to no avail thus far. I cannot get it to start in download mode as it is not even registering on my computer. I have tried factory resetting via Power+Vol Down and then release Power and pressing it again but that has also failed and it's going back into bootloop.
I have tried using LGUP and LG flashtool but they are not detecting the device. I've looked into the BoardDiag method but they are not specifically for the GPAD. The method requires removing the battery and this G PAD either cannot remove the battery or it is very difficult to do so. It also requires shorting the pins but I'm not very sure where they are located on this device.
If anyone has resolved this or knows how to resolve please help me out. Alternative methods or expand further on how to properly perform the BoardDiag method would be greatly appreciated.
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Click to collapse
I just did the same thing. I skipped a few steps and now the x8.0 is in a soft loop!
Have you, or do you reading this have a solution yet? Looks like I will have to put this back in the box and place it in the back of a drawer!
FIXED
bsingleto said:
I just did the same thing. I skipped a few steps and now the x8.0 is in a soft loop!
Have you, or do you reading this have a solution yet? Looks like I will have to put this back in the box and place it in the back of a drawer!
Click to expand...
Click to collapse
I FOUND THE ANSWER TO MY OWN QUESTION!
I tried doing the physical button factory reset that the device manufacture suggested on its website but this did not work, located here LIBRARY HELP. But what did help was located under SOFTWARE &FIRMWARE PC SYNC that did help.
I followed a youtube video of this guy here: lgDOTcom/us/support-mobile/lg-V521 and through watching it about five times I copied the process "" and was able to get out of the soft brick loop process where the boot screen kept repeating the vibrate with boot failed message. This next video i didn't watch, but I scanned through it and it is the process that I went through step by step in fixing it. It took over five hours total but I when through the steps this person shows in this youtube video here youtubeDOTCom/watch?v=_tOtfF6gKkg
I will post my failed attempt on my youtube channel youtubeDOTcom/channel/UCeL3q6PUn7jV_VXTewIEppQ/playlists once I upload it later if anyone is interested in seeing how i went about bricking my tablet.
You definitely do not need to pop off the back and start soldering. One tutorial did that and it did not even work.
Your welcome !
Related
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
Hey everyone,
I know there are countless threads on this but I've been up all night going through pages and pages of info and trying virtually everything that each post said to no avail, so I thought I'd just make a new thread and see if anyone can help me.
Okay, so, I had a rooted L9, with locked bootloader, on stock JB before I started any of this. Yesterday, I decided that I wanted to put Cyanogenmod 11 on it, yet, I have only managed to soft brick it.
Basically, it's stuck at the Security Error screen. I can get it into the S/W upgrade mode, however, when I do that and open the LG support tool the program just crashes. The Windows "not responding" error pops up, and the program closes. I have no idea why this is happening now, because the program was working fine before, but anyways, yeah. I have the shttps thing running in the background, and the connection is successful. I tried doing the offline fix countless times, but no luck. I have the UpTestEX_mod2_marwin.exe file, too, that I've been trying to use, however, as you all know, it just opens the lg program when you click on "upgrade start" and the program crashes. I tried doing the software upgrade through the exe file, but it doesn't find the port. Device Manager tells me the L9 is on port 9, but it looks on port 1 or 0, and doesn't find the L9.
I think that's basically it, and, if anyone can help me at all it would be very much appreciated (I don't really want to have to buy a new phone!)
If it is a security error than I think it would be easier to fix it from omap4boot mode with unofficial fastboot. Its a thread in this forum.
Sent from my Amazon Tate using Tapatalk
If anyone can advise me here I will be very grateful. I have spent several days looking online and reading countless threads here but am still not having any joy. Am a bit of a noob so go easy on me please!
I have a rooted LG D618 running Lollipop (recently upgraded itself from Kitkat). Long story short, I was fiddling around with the bootloader trying to install a custom recovery (ahem... ) and I ended up bricking the phone. I have been trying since then to install the original firmware using LG Flash Tool 2014 and it always stops on the 4% mark whilst extracting the kdz. I have tried this about a hundred times and the same thing happens every time. The phone is completely dead, I can not switch it on and I am unable to boot it into Factory Reset mode using the keys either. But it is still being recognized by the PC (win7 x64) and can enter (what I assume is) download mode. However in Windows the phone is recognized as removable disk containing 2 folders - 'image' and 'verinfo'. Not sure if that is normal or not? I am able to start the kdz flashing process and it goes through the first couple of steps verifying connectivity etc and then stops at the aforementioned 4% during the file extraction process, sticks for a while, and then gives me an error message.
I tried a solution which I found on the forum here, which I think was for the same issue, involving the wx.dll file in C/ProgramData/LGMOBILEAX/phone but this has no effect. I thought it might be related to me installing the KitKat kdx (v10c) onto the phone but I have since tried flashing the stock Lollipop variant (v20b) also and the exact same thing happens so am guessing it is not because of the KitKat wx.dll file causing issues. I am pretty clueless here, all of this is unchartered territory for me and I am out of my depth so if any kind soul here can advise me on any possible solution I am willing to try anything before admitting defeat, and taking the phone to LG to fix under warranty and hoping they don't realize that I broke it. :laugh:
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.
So as the title says, my phone is stuck with a no command screen and i think it is going through a boot loop along with it. so hears the backstory. Its a used phone, bought through Facebook [not such a great idea, but i bought a note 10 last year for half the price brand new, cant win every time though]. the seller failed to mention that it was rooted. and in a haste one day i deleted my conversation with him (not archived) when i was cleaning out my messages.
When the battery died i saw the first warning, stating "Your Device software cannot be checked for corruption. Lock Bootloader. Visit this link on another device: g.co/abh" that's when it got stuck in a boot loop. It may have received a update, im not sure. I visited the link which is for google pixel or nexus phones. so i brought it to a repair shop and local businesses will not work on it, because its been rooted. well i managed to get it working again, only by doing a factory reset. Ive had to do that twice. then one day i magisk had a update. i did it. and YAY its fixed. me being me wanted to unroot and lock the bootloader so it would be back to default. Nope. I uninstalled magisk. and boom i have the no command boot loop. i have tried using the LGUP program, but with it being att that got shut down real fast. I have looked all over for information. but i need it dumbed down. I catch on quick but a lot of the terminology is lost on me. I may have forget to mention some things. so please anyone who can help. any info would be appreciated.
So after much button combos and almost just chunking the phone. I managed to get it into download mode. by pressing and holding Vol- and Power button to get it to restart. (phone is unable to power off. unless the battery is 0%) While screen is blank, press and hold Vol+ while plugging usb into the phone. I had the cord in the computer first. it may work vice versa. Looking for AT&T official Firmware now. I think.
Brother, I request you. Please tell me how you did that.
i cant do anything. i have the exact same problem
Please guide me step by step.
Ankit Hotta said:
Brother, I request you. Please tell me how you did that.
i cant do anything. i have the exact same problem
Please guide me step by step.
Click to expand...
Click to collapse
for downloading mode, press power button and volume down while connecting USB to computer , when phone turns off press volume up.
later follow this steps
Flashing KDZ Using Lg up LG g8x (Guide)
Download required file : http://www.mediafire.com/folder/4mqovbes4jvvw/lg+UP In order, unzip the three zip files Install Lg USb driver. Install Lab first Install the DLL again Finally put UI_Config.lgl in the C:\Program Files (x86)\LG...
forum.xda-developers.com
Samee issue did u fixx itt?? Iff yes howww