NEEd Help Security Error G3 LS990! - Sprint LG G3

Recently I Rooted My Sprint G3 Lolipop. Had no Issues there. Then I wanted to install TWRP, So I downloaded AutoRec, waited for the app to confirm everything and installed it. When I turned my phone off and tried to reboot into recovery, it Gives me a screen that has the LG Logo and it says Security Error and turns back off. I can still go into download mode but thats all I can do.
Ive read the other posts for this problem but i havent found one for my specific Phone.
Can anybody please help me with step by step Instructions?? Im still not super expirenced in rooting phones and the other phones I have rooted have always been successful..
Sprint LG G3 5.0.1
LS990ZVC

Heres a link to that same problem. The member experiencing the issue fixed it by flashing a .tot file from a previous ZV version he went from ZVA to ZV4 u should be able to do that i believe by using the 2014 lg flash tool, look it up. While i dont like flashing different ZV versions myself i think u might be safe for the most part.
Me personally think but might be wrong so dont quote me.. Lol but i would flash using a ZVB tot/kdz in the 2014 flash tool and i believe the lg support tool will then upgrade u back to ZVC if not the LGUPtool i mean your taking it from a noob but i think i stand correct here lol
http://forum.xda-developers.com/sprint-lg-g3/help/help-security-error-t3177905

Thanks. Actually didn't even waste my time on it. I still flash and do everything else with my phone. Found out it was a authentication code or something like that. Thanks for the reply back though!!!

Related

Help! Think I may have really bricked L9

My desesperation may have been my reaper.
I tried flashing a kdz file vb20 to my l9. I was trying to unlock bootloader, based on the main threads at the General forum (unlocking bootloader for noobs). I only worked with the written instructions, and the phone didn't show the recovery installer that was on SD (forgot to install, I guess?). I freaked out and thought that a boot to recovery could fix. WRONG. It made the recovery to the v20b file. Everything is mirrored,
PS, please me nice on me. I know I didn't prep as well as I thought I did, so just want advice
EDIT:
Never mind. Dodged a bullet. After a while, the screen came up when it was unlocked. Took a while, but I was able to use the same method to flash v20f, am now updating to v20h. WAAAYYYY too close a call!!!
Another edit: think I'm gonna have to give it up. I flashed the most updated version, but the keyboard and screen behave too erratically.

[Q] VS98512b Unlock/Root Help!

I have the Verizon LG G3 with build 12b installed (Was updated by the store when I purchased phone). Is there anyway to unlock the boot loader and root the device as is, or roll the device back to a previous build that is easily unlockable/rootable?
You should have posted in the q&a forum area.
Anyhow - if you want to root, and install a custom recovery (twrp), use the kdz method to get back to 10b:
http://forum.xda-developers.com/showthread.php?p=56484240
Then from this forum area install the bump/twrp from autoprime, and make sure to either freeze system updates or rename the two LGDMSClient files in /system/app. The freeze or rename is so new ota don't get pushed onto your phone after you get the custom recovery (twrp). Otherwise you'll needed the solution in the "stuck in custom recovery" thread:
http://forum.xda-developers.com/showthread.php?p=56061720
(It is handy to download the "stuck" zip onto your phone as a just-in-case. If you do get an ota, and your phone keeps booting to recovery, tell twrp to Install the zip to clear the ota files )
HTH!
I am trying that method now (actually before you replied) but the kdz file is taking for ever to download. Been running for 30 minutes and still showing 7 hours remaining. I have a really fast internet connection but that one file doesn't wanna download!
markfm said:
You should have posted in the q&a forum area.
Anyhow - if you want to root, and install a custom recovery (twrp), use the kdz method to get back to 10b:
http://forum.xda-developers.com/showthread.php?p=56484240
Then from this forum area install the bump/twrp from autoprime, and make sure to either freeze system updates or rename the two LGDMSClient files in /system/app. The freeze or rename is so new ota don't get pushed onto your phone after you get the custom recovery (twrp). Otherwise you'll needed the solution in the "stuck in custom recovery" thread:
http://forum.xda-developers.com/showthread.php?p=56061720
(It is handy to download the "stuck" zip onto your phone as a just-in-case. If you do get an ota, and your phone keeps booting to recovery, tell twrp to Install the zip to clear the ota files )
HTH!
Click to expand...
Click to collapse
Check post 150 in that thread. annoyingduck posted a second link
markfm said:
Check post 150 in that thread. annoyingduck posted a second link
Click to expand...
Click to collapse
I think I am in love with you, JK.....seriously though thanks a bunch....downloading the Mega link now and it seems to be going MUCH faster.
Did it work for you? I tried to downgrade, when phone said 100% it rebooted. I had a dark screen.... Went to the Verizon store, was told it was hard bricked. Haven't tried rooting my replacement yet.
Early adopter, got my phone in July, used the original ioroot, never had to revert.
The kdz method has had quite a few people who succeeded, based on what I read, no idea why it went bad for you. If you are gun shy, understandable, post 2 of annoying duck's thread has a link for the tot approach, supposed to be a slightly more pita way but not too exotic. Key is to flash any existing g3 drivers on your PC, install the proper things used by the tot method.
martinez5241 said:
Did it work for you? I tried to downgrade, when phone said 100% it rebooted. I had a dark screen.... Went to the Verizon store, was told it was hard bricked. Haven't tried rooting my replacement yet.
Click to expand...
Click to collapse
Anyway to downgrade without this happening? I want to run stock lollipop on my G3 but so far am stuck at the VS98512b update too
_AI_ said:
Anyway to downgrade without this happening? I want to run stock lollipop on my G3 but so far am stuck at the VS98512b update too
Click to expand...
Click to collapse
I did the kdz method. Omg you run the program and it starts don't click on any notifications, just let it run. Sorry about the late response.

How to: Update LG G2 D802 (FlashKDZ/Root/Recovery/Hiddenmenu/troubleshooting)(n2n)

(FlashKDZ/Root/Recovery/Hiddenmenu/troubleshooting)​ (noob2noob guide)​
Okay, this is my first thread on XDA, the reason I'm making it is there is a lots of problems with progressing to lollipop. All of this is already mentioned in the forum, but this way it is much easier since it is all at one place. If I'm doing something wrong please warn me with explanation how to resolve the issue. If I'm posting in wrong forum section please move my thread where it is supposed to be.
1. Before doing anything check if your phone is ready to get updated:
1.1 Do you have a stock Kitkat rom or at least a rom that is kitkat based, since there can be a problem with partitioning if custom lollipop rom is installed
1.2 Create a backup. Don't be lazy LG backups will not help you since they can't go from kitkat to lollipop, don't try to do it from recovery because you will lose custom recovery. Copy your files from phone including extracted contacts, and back it up online with google or some other backup providers.
1.3 Check if you have a latest touch firmware, because you might have a problems after installing lollipop and it will be hard for you to check for updates since your touch might become useless.
1.3.1 To check it go to hidden service menu by typing 3845#*802# and go under HW Device Test, then Touch Test then touch firmware version and write everything down. After that go to touch firmware upgrade and after 15 seconds compare the touch firmware version values with those you written down.
1.4 In hidden Menu you can also go to wlan test then ota setting to check if it is disabled on your phone. After that check again if there is OTA updates for your phone, and also check if there is PC suite Update.
1.5 Check your phones version if it is D802, D800 or something else, and check which rom you have installed. You can do this in settings about phone or if you are happy about hidden menu found, go there and into settings then version info. This might not be interesting or fun to do, but it will save you the trouble if something goes wrong, because you will know what to ask.
1.6 Last but not the least, before starting to flash fill up your battery, i've read some posts that say there are problems with wrong capacity shown, and a lots of battery drain problems, and only solution till now is to have a full battery on start.
2. You will need LG FlashTool and of course installed drivers for your G2 on your PC.
All of that you can get in the thread by @quangnhut123 .
2.1 Just a bit of precautions, don't forget to always copy a kdz file in to Flashtool folder and then start a tool. All should look the same as in that thread, except you should always use CSE method because with this method you will install kdz from scratch, removing everything from the phone.
2.2 You should find the kdz file which suits for your phone on site . You can check for kdz by typing in imei in check new firmware section or find the one for yourself by searching the site. v30a is lollipop open while v30d is for branded G2's.
(I've read that this site is not allowed by Xda moderators, so if I can't post it please give me info on where should we download kdz's from).
2.3 I think it's all pure logic now but lets say it one more time. You have downloaded kdz file, and put it inside LG Flashtool folder. You should now start Flashtool and get your phone into Download mode. To do this you need to hold volume up button on turned off device and connect usb cable while holding volume up. Now just cse flash.
2/3 This is troubleshooting step, if you have a problem ask and i hope this great community will help you like they did to me, and ofc I will do my best to help.
3. Now we go to rooting.
Here is the thread by @avicohh which worked for my D802.
Just follow his step by step tut and you will have a rooted phone
3.1 The only issue that might happen here is you are stuck with # and adb waiting for your phone. To resolve this just go into download mode manually.
4. Okay rooting done, now let's go to custom recovery install
It's easy as installing an app from google play by @bender_007
4.1 After installing it open the app and follow the on-screen instructions. If it fails for the first time, try it few more times, it will eventually work. (OFC. I didn't install it with only one try).
4.2 To get into custom recovery hold volume down and power button till first LG sign shows up, then release both buttons and quickly press them again. It will ask you do you want to do factory reset, press yes and yes again, and it will get you to custom recovery if you installed it.
4.2.1 If you factory reset your phone that means you didn't install recovery correctly and you will lose your data, but again that should be no problem since you have that backup from the start.
Now optional steps:
5. Install system app remover to remove bloatware from your phone. You can do it manually but this way you will have those apps backed up.
6. Next suggestion is to install a few mods if you need them. In my case I had to have a Plug and pop, since it is lost from Lollipop and I loved that feature. Here is a thread on how to install that mod by @p_a_r_s_a7
//That's all, if you have any questions feel free to ask, since there is no dumb questions, but also try to read carefully before//
Thanks to:
@quangnhut123
@avicohh
@p_a_r_s_a7
@bender_007
A lot of others whose names i can't remember. If anyone else needs to be mentioned PM me and i will add you in this section.
I will add pictures and stuff if needed
Thanks, good all-in-one thread, + easiest methods. Ill recommend it‚to others
This forum is such a mess that a thread like this is like a fresh breath of air. Every advice given on other threads references something that you should already know how it's done, or you should already have done to your phone in the past and have a certain version of it, or non-working tools that are only around for a few months until an update makes them unusable.
No wonder that most of the first-page topics, including pinned ones, have the word "brick" in the title. This should signal the forum moderators that something is wrong around here.
My phone is stock international sim-free G2, never rooted or otherwise modified and yet no one was able to offer a coherent solution of how to update to Lollipop, until your post.
So, thanks for this thread.
Thank you, that is exactly why i made the thread. Every one of those threads has everything explained, but you need to search theough 150 pages to understand how something is done. That's why i wanted to make a thread with all explanations made in a single post and to make it noob friendly since the worst thing that happens in other threads is answer like use a search you have it somewhere.
Hi,
Thanks for the thread. It really helps noobs like me, but I still have a couple of questions...
I was running Paranoid Android L rom with root, twrp and kk bootloader on My D802.
I didn't see this thread before I decided to downgrade back to 4.2.2 stock rom, and now I don't really know what steps to take.(I have kernel version 3..4.0 and build number JDQ39B)
I haven't seen an OTA available, so I was thinking of flashing new Lollipop rom kdz file. But I've been seeing stuff about using LG PC suite to upgrade via OTA so i wasn't sure.
So my main question is that do I do an OTA upgrade on my current 4.2.2 stock rom or do I download an official Lollipop rom? Can you give me a brief idea of the steps to take?
Thanks
seyio said:
Hi,
Thanks for the thread. It really helps noobs like me, but I still have a couple of questions...
I was running Paranoid Android L rom with root, twrp and kk bootloader on My D802.
I didn't see this thread before I decided to downgrade back to 4.2.2 stock rom, and now I don't really know what steps to take.(I have kernel version 3..4.0 and build number JDQ39B)
I haven't seen an OTA available, so I was thinking of flashing new Lollipop rom kdz file. But I've been seeing stuff about using LG PC suite to upgrade via OTA so i wasn't sure.
So my main question is that do I do an OTA upgrade on my current 4.2.2 stock rom or do I download an official Lollipop rom? Can you give me a brief idea of the steps to take?
Thanks
Click to expand...
Click to collapse
Updating through pc suite or ota is the best way if it is available to you. Flashing kdz is the same thing but that is doing it manually while through pc auite nad ota is pretty much automatic. Anyways which ever way you decide to use be sure to fully charge your battery and factory reset acter the update. If you need anything else feel free to ask
[email protected]$o said:
Updating through pc suite or ota is the best way if it is available to you. Flashing kdz is the same thing but that is doing it manually while through pc auite nad ota is pretty much automatic. Anyways which ever way you decide to use be sure to fully charge your battery and factory reset acter the update. If you need anything else feel free to ask
Click to expand...
Click to collapse
Do I flash KK bootloader or root before I update through ota?
seyio said:
Do I flash KK bootloader or root before I update through ota?
Click to expand...
Click to collapse
No need to flash bootloader if you didnt flash it for paranoid android. And definitely no need to root since you can root after update.
Problems with flashing KDZ
I have downloaded Spain Lolipop KDZ file for LG G2 D802.
Have backed up everything usint TWRP> ( Presently on Optimus G3 rom v 1.4.1 with dorimanx kernel and TWRP )
I have copied the KDZ file to the flash tool. When i use CSE flash .. it takes me to the next page .. in which I click on Start which then opens up the LG Mobile support tool.
Then it shows detecting ur phone .. unpacking or extracting file .. after that shows software updating .. reaches 2 % and then shows error .. asks me to retry .
Do you know what I am doing wrong ? or the cause of this prob ?
http://i58.tinypic.com/15rk2eo.png
sankeerth24 said:
I have downloaded Spain Lolipop KDZ file for LG G2 D802.
Have backed up everything usint TWRP> ( Presently on Optimus G3 rom v 1.4.1 with dorimanx kernel and TWRP )
I have copied the KDZ file to the flash tool. When i use CSE flash .. it takes me to the next page .. in which I click on Start which then opens up the LG Mobile support tool.
Then it shows detecting ur phone .. unpacking or extracting file .. after that shows software updating .. reaches 2 % and then shows error .. asks me to retry .
Do you know what I am doing wrong ? or the cause of this prob ?
http://i58.tinypic.com/15rk2eo.png
Click to expand...
Click to collapse
Had the same problem when flashing kitkat kdz. Are you sure that you have pasted kdzfile inside flashtool. If that is not the problem try other kdz. That helped me
Where are you from and more specifically whhere your phone is from so i can maybe help you with finding right kdz. And btw i think you might have a problem when trying to restore that backup so if you still can backup your phone manually or on the cloud.
[email protected]$o said:
Had the same problem when flashing kitkat kdz. Are you sure that you have pasted kdzfile inside flashtool. If that is not the problem try other kdz. That helped me
Where are you from and more specifically whhere your phone is from so i can maybe help you with finding right kdz. And btw i think you might have a problem when trying to restore that backup so if you still can backup your phone manually or on the cloud.
Click to expand...
Click to collapse
I have restored the complete back up using TWRP .... Yes i have already pasted kdz in the same folder of flash tool...still no change .. now downloading D802 20H firmware to flash stock n den again try KDZ
I have seen that some guys who had the same problem resolved it with disconnecting from network
Sent from my LG-D802 using XDA Free mobile app
sankeerth24 said:
I have restored the complete back up using TWRP .... Yes i have already pasted kdz in the same folder of flash tool...still no change .. now downloading D802 20H firmware to flash stock n den again try KDZ
Click to expand...
Click to collapse
http://www.1x1a.com/fixlg-flash-tool-stuck-at-2.html
Or maybe try this. I havent tried it so i cant promise anything but if you want you can try. Hope it helps
[email protected]$o said:
No need to flash bootloader if you didnt flash it for paranoid android. And definitely no need to root since you can root after update.
Click to expand...
Click to collapse
Hi again..
OTA update to Lollipop has failed on my D802, LG PC Suite only upgraded me from Android 4.2.2 to 4.4.2, so can anyone help me out here?
Am I missing something for OTA update? If not, then which lollipop kdz can I download for my phone so that I can flash? I live in UK and i use a 3 UK sim if that helps
but also, In the process of trying to boot into my previously installed TWRP recovery, I discovered that i have been restored to stock recovery. I have rooted the phone, but just wanted to clarify: I flash custom recovery, then bootloader/kernel then lollipop kdz?
Thanks again
seyio said:
Hi again..
OTA update to Lollipop has failed on my D802, LG PC Suite only upgraded me from Android 4.2.2 to 4.4.2, so can anyone help me out here?
Am I missing something for OTA update? If not, then which lollipop kdz can I download for my phone so that I can flash? I live in UK and i use a 3 UK sim if that helps
but also, In the process of trying to boot into my previously installed TWRP recovery, I discovered that i have been restored to stock recovery. I have rooted the phone, but just wanted to clarify: I flash custom recovery, then bootloader/kernel then lollipop kdz?
Thanks again
Click to expand...
Click to collapse
I am not sure but i think that update for the uk didnt come out yet. so you can't update to lollipop yet via pc suite or ota. and you got it all wrong. first you flash lollipop kdz but you will have to try out few of them since official for uk didn't come out yet, after that you root, and then flash custom recovery.
and as previously you will be back to stock recovery after update. you have it all explained step by step in first post. i know it is a bit long but that is the best way, since i didn't want to write stuff like "you should know that" and so on. so just follow the first post and you will be happy, or wait for official uk update over the ota you will be happy too, and i guess it should come out in a month.
[email protected]$o said:
I am not sure but i think that update for the uk didnt come out yet. so you can't update to lollipop yet via pc suite or ota. and you got it all wrong. first you flash lollipop kdz but you will have to try out few of them since official for uk didn't come out yet, after that you root, and then flash custom recovery.
and as previously you will be back to stock recovery after update. you have it all explained step by step in first post. i know it is a bit long but that is the best way, since i didn't want to write stuff like "you should know that" and so on. so just follow the first post and you will be happy, or wait for official uk update over the ota you will be happy too, and i guess it should come out in a month.
Click to expand...
Click to collapse
Thanks for the quick reply.
I'll download all the lollipop kdz's and see which one of them works for me till the UK one comes out then I'll just do a normal flash over it.
But seriously, one month for the UK ota :crying: Right now, I don't even know which is worse: Google that takes forever to release updates with so many bugs, or Apple who generally release better stable updates but make older devices laggy...
Thanks again for all the help.
seyio said:
Thanks for the quick reply.
I'll download all the lollipop kdz's and see which one of them works for me till the UK one comes out then I'll just do a normal flash over it.
But seriously, one month for the UK ota :crying: Right now, I don't even know which is worse: Google that takes forever to release updates with so many bugs, or Apple who generally release better stable updates but make older devices laggy...
Thanks again for all the help.
Click to expand...
Click to collapse
its a good update, not that buggy, and be sure to fully charge your battery before the process. you should try europe open or something like that, but there is no german or uk release yet and some guys suspect it is slowed down because they found out bugs in other versions
After CSE Flashing my d802 with a 30a, it got stock on lg logo screen, then an android screen with "erasing" on bottom, then lg screen. I let it sit for 4 hrs but nothing happened. Im back to stock kitkat atm. A little help please.
fernievidal said:
After CSE Flashing my d802 with a 30a, it got stock on lg logo screen, then an android screen with "erasing" on bottom, then lg screen. I let it sit for 4 hrs but nothing happened. Im back to stock kitkat atm. A little help please.
Click to expand...
Click to collapse
Where from is your phone? Are you sure you flashed right kdz? Did lollipop even turn off? DidCSE flashing finished sucessfully? I would like to help you, but i cant if you dont explainme what is your problem. I am not some pro who faced every error on every phoneso please explain a bit more
And i suppose that erasing screen could have been factory reset on stock recovery
[email protected]$o said:
Where from is your phone? Are you sure you flashed right kdz? Did lollipop even turn off? DidCSE flashing finished sucessfully? I would like to help you, but i cant if you dont explainme what is your problem. I am not some pro who faced every error on every phoneso please explain a bit more
And i suppose that erasing screen could have been factory reset on stock recovery
Click to expand...
Click to collapse
I believe mine is an international version. Where it came from, well, I'm from the Philippines and I got my phone from a local telecom, Globe.
The flash tool said that it was successfully upgraded, but judging from the phone's behavior I think there's something wrong. My phone never started successfully, and I got stuck in the LG logo.

[Q] Downgrade help

Firstly, I apologize if this has been asked. And I'm sure it has. Before we get into the " do your research" rebuttals, I have been trying to get this done for about 2 weeks now. What i'm trying to do is root my phone and install a custom recovery. This is my first LG phone ( im coming from Samsung). I am on Lollipop. I understand that I have to revert back to 12b. So as I do this, I see that we use the LG flash tool. I am having a terrible time in getting this to work even as I follow the instructions on youtube ( although im starting to wonder if these are out of date). Main Issues tend to be that they call for a .kdz file and all I find for downloading are .tot files. What is the difference here? Another Issue im running into is the fact that I cant even get signed into the toolkit. I keep getting an error message. Unable to login and what not. I'm guessing it has something to do with the .dll file? Anyway. I'm not a pro by any means, but I just feel like I should be having some rom fun by now Can I get anyone willing to help me further please??? Cheers ahead of time!!!!
mattym320 said:
Firstly, I apologize if this has been asked. And I'm sure it has. Before we get into the " do your research" rebuttals, I have been trying to get this done for about 2 weeks now. What i'm trying to do is root my phone and install a custom recovery. This is my first LG phone ( im coming from Samsung). I am on Lollipop. I understand that I have to revert back to 12b. So as I do this, I see that we use the LG flash tool. I am having a terrible time in getting this to work even as I follow the instructions on youtube ( although im starting to wonder if these are out of date). Main Issues tend to be that they call for a .kdz file and all I find for downloading are .tot files. What is the difference here? Another Issue im running into is the fact that I cant even get signed into the toolkit. I keep getting an error message. Unable to login and what not. I'm guessing it has something to do with the .dll file? Anyway. I'm not a pro by any means, but I just feel like I should be having some rom fun by now Can I get anyone willing to help me further please??? Cheers ahead of time!!!!
Click to expand...
Click to collapse
go to the general verizon forum and look at op #2 in my sticky Reference thread. all the drivers, tools, directions, and links are there.
i prefer to use the TOT method, have never used the kdz, but each uses a different flash tool and instructions.
the instructions in the flashing stock threads linked there are very good.
try following those threads, and forget youtube.
after you pick a direction, and run into issues, post back with which method, and your issues. then it will be much easier to help, rather than me posted a step by step novel that for the most part already exists.
mattym320 said:
Firstly, I apologize if this has been asked. And I'm sure it has. Before we get into the " do your research" rebuttals, I have been trying to get this done for about 2 weeks now. What i'm trying to do is root my phone and install a custom recovery. This is my first LG phone ( im coming from Samsung). I am on Lollipop. I understand that I have to revert back to 12b. So as I do this, I see that we use the LG flash tool. I am having a terrible time in getting this to work even as I follow the instructions on youtube ( although im starting to wonder if these are out of date). Main Issues tend to be that they call for a .kdz file and all I find for downloading are .tot files. What is the difference here? Another Issue im running into is the fact that I cant even get signed into the toolkit. I keep getting an error message. Unable to login and what not. I'm guessing it has something to do with the .dll file? Anyway. I'm not a pro by any means, but I just feel like I should be having some rom fun by now Can I get anyone willing to help me further please??? Cheers ahead of time!!!!
Click to expand...
Click to collapse
There are two different flash tools. The official LG flash Tool, which requires TOT and DLL files. And the unofficial KDZ tool called "LG flash Tool 2014", which only needs a KDZ file. Use either one to get back to 10b firmware. You can then use Stump root to root it. After that, you can install TWRP Manager from Play Store. And from TWRP Manager, you can put in your phone model and it will download and install TWRP for you. If you want to, you can then follow the Jasmine rom thread to upgrade back to Lollipop using TWRP. I personally prefer to stay in 10b as I found it to be very stable and after I un-install the Verizon bloatware using Titanium backup, it is quite smooth.
Thank you both. I'll give it a try here in a bit. It helped a lot no one there to compare two completely different setups I did not know that thank you both again
acefr said:
There are two different flash tools. The official LG flash Tool, which requires TOT and DLL files. And the unofficial KDZ tool called "LG flash Tool 2014", which only needs a KDZ file. Use either one to get back to 10b firmware. You can then use Stump root to root it. After that, you can install TWRP Manager from Play Store. And from TWRP Manager, you can put in your phone model and it will download and install TWRP for you. If you want to, you can then follow the Jasmine rom thread to upgrade back to Lollipop using TWRP. I personally prefer to stay in 10b as I found it to be very stable and after I un-install the Verizon bloatware using Titanium backup, it is quite smooth.
Click to expand...
Click to collapse
UPDATE.... I am now rooted with TWRP. Once again thanks to both!!

No imei and stuck in lg logo bootloop without computer access...help!

Ok I really did it this time. Here is what i stupidly did. my phone was on the 35b update so I used the tot method to take it back to 10b. I rooted and then used the ota updates to upgrade to 12b, and I believe to more times (of course after telling supersu to stay active thru the updates) until I got to the update that would take me over into lollipop. I downloaded the update, but then needed to charge my phone i noticed, so I told it to postphone the update. After I had a somewhat decent charge I told my g3 to update and it immediately went to twrp recovery. Thinking this odd I tried to reboot and it started to bootloop inside twrp. I tried getting it to do a recovery of a save that i had previously had downloaded to my ext sd before I lost root taking the 35b update and it went all the way thru and said success. But as soon as it rebooted into what should have been the system, It instead started bootlooping at the lg logo and hasnt stopped since. I not have got it to go to recovery but it is stock and twrp is now gone but every option results in simply restarting the bootloop. I plugged into my computer to try both tot and kdz only to have them both fail because now my computer no longer recognizes my device. During the stage that I was in recovery trying to use different predownloaded roms is when I realized that my imei has also been erased, which is why I assume my computer cant recognize it anymore. I know I probably have a list of mistakes that could have been avoided but I tried to do this myself and I admit i simply need the vast knowledge of the xda. Please someone guide me in the right direction to fix my phone. I don't have alot of money to spend to replace it and just really need to fix this one please.
ronnieshane1 said:
Ok I really did it this time. Here is what i stupidly did. my phone was on the 35b update so I used the tot method to take it back to 10b. I rooted and then used the ota updates to upgrade to 12b, and I believe to more times (of course after telling supersu to stay active thru the updates) until I got to the update that would take me over into lollipop. I downloaded the update, but then needed to charge my phone i noticed, so I told it to postphone the update. After I had a somewhat decent charge I told my g3 to update and it immediately went to twrp recovery. Thinking this odd I tried to reboot and it started to bootloop inside twrp. I tried getting it to do a recovery of a save that i had previously had downloaded to my ext sd before I lost root taking the 35b update and it went all the way thru and said success. But as soon as it rebooted into what should have been the system, It instead started bootlooping at the lg logo and hasnt stopped since. I not have got it to go to recovery but it is stock and twrp is now gone but every option results in simply restarting the bootloop. I plugged into my computer to try both tot and kdz only to have them both fail because now my computer no longer recognizes my device. During the stage that I was in recovery trying to use different predownloaded roms is when I realized that my imei has also been erased, which is why I assume my computer cant recognize it anymore. I know I probably have a list of mistakes that could have been avoided but I tried to do this myself and I admit i simply need the vast knowledge of the xda. Please someone guide me in the right direction to fix my phone. I don't have alot of money to spend to replace it and just really need to fix this one please.
Click to expand...
Click to collapse
im fairly knowledgeable with the g3, but im not sure i can help you
the consequences of the minor mistake you made (you cant take an ota with twrp on) are unusually severe.
we have a zip to flash that would have fixed it, but it needs to be flashed in twrp, and i dont believe i have ever seen twrp get removed while making this error.
im thinking the only fix is flashing stock. i would try different usb ports, re-install the drivers, and even try another pc, to get it recognized so you can flash it.
if there is some other fix im forgetting maybe someone else will suggest it, but in a bootloop with no twrp to flush the update, i believe your in a bad spot if you cant figure out how to get it to flash.
sorry
that is how my luck goes, thanks for looking into my problem.
bweN diorD said:
im fairly knowledgeable with the g3, but im not sure i can help you
the consequences of the minor mistake you made (you cant take an ota with twrp on) are unusually severe.
we have a zip to flash that would have fixed it, but it needs to be flashed in twrp, and i dont believe i have ever seen twrp get removed while making this error.
im thinking the only fix is flashing stock. i would try different usb ports, re-install the drivers, and even try another pc, to get it recognized so you can flash it.
if there is some other fix im forgetting maybe someone else will suggest it, but in a bootloop with no twrp to flush the update, i believe your in a bad spot if you cant figure out how to get it to flash.
sorry
Click to expand...
Click to collapse
got my computer to see it but now i cant flash back because I have no imei. Any fix I can do from download mode?
ronnieshane1 said:
got my computer to see it but now i cant flash back because I have no imei. Any fix I can do from download mode?
Click to expand...
Click to collapse
I don't know if trying LG Flash Tool 2014 with a 10B KDZ would work any better than the TOT method without an IMEI.
ronnieshane1 said:
got my computer to see it but now i cant flash back because I have no imei. Any fix I can do from download mode?
Click to expand...
Click to collapse
there is a thread here in help somewhere on how to fix your imei. you would have to look into that, i really dont know how its done or whats possible.

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